Schoolyard Forest Design Lecture Series 4: Selecting Trees for Schoolyard Forests

00:54:36
https://www.youtube.com/watch?v=2gLwhQ8s5EQ

Ringkasan

TLDRLa quatrième session de la série de conférences sur la conception des forêts scolaires a été dirigée par Lauren McKa de Green Schoolyards America, avec des présentations d'experts sur la sélection d'arbres adaptés aux écoles. L'initiative vise à augmenter la canopée d'arbres dans les écoles publiques pour protéger les élèves des températures extrêmes causées par le changement climatique. Les intervenants ont discuté de l'importance de choisir des arbres adaptés au climat, des impacts du changement climatique sur les espèces d'arbres, et des outils en ligne pour aider à la sélection des arbres. Les participants ont été encouragés à poser des questions et à explorer les ressources disponibles pour la conception et l'entretien des forêts scolaires.

Takeaways

  • 🌳 Importance de la canopée d'arbres pour protéger les élèves
  • 🌡️ Impact du changement climatique sur la sélection des arbres
  • 🛠️ Outils en ligne pour aider à la sélection d'arbres
  • 🌱 Choisir des arbres adaptés au climat local
  • 📚 Ressources disponibles pour la conception des forêts scolaires
  • 🌼 Bénéfices écologiques des arbres dans les écoles
  • 👩‍🏫 Opportunités d'apprentissage offertes par les arbres
  • 💧 Gestion des eaux pluviales grâce aux arbres
  • 🧑‍🤝‍🧑 Encouragement à impliquer la communauté dans les projets
  • 🔍 Importance de la diversité des espèces d'arbres

Garis waktu

  • 00:00:00 - 00:05:00

    Bienvenue à la quatrième session de la série de conférences sur la conception des forêts scolaires. L'initiative vise à augmenter la canopée d'arbres dans les écoles publiques aux États-Unis pour protéger les élèves des températures extrêmes dues au changement climatique. La Californie est le premier État à participer à cette initiative.

  • 00:05:00 - 00:10:00

    Les ressources de la bibliothèque nationale des forêts scolaires incluent des guides sur la sélection d'arbres adaptés au climat et des articles sur les avantages des forêts scolaires. Les prochaines conférences aborderont des sujets tels que la gestion des eaux pluviales et l'habitat de la faune.

  • 00:10:00 - 00:15:00

    Les conférenciers invités, Aaron, Joe et Jen, discuteront de la sélection des arbres pour les forêts scolaires, en tenant compte de la fonction, des avantages, de la sécurité et de l'entretien. Ils présenteront également des outils en ligne pour aider à la sélection des arbres.

  • 00:15:00 - 00:20:00

    Aaron souligne l'importance de choisir les bonnes espèces d'arbres pour les écoles, car elles représentent un investissement à long terme. Il discute des considérations de conception pour maximiser les avantages des arbres dans les espaces scolaires.

  • 00:20:00 - 00:25:00

    La sélection des arbres doit tenir compte du climat local et des besoins des élèves. Les arbres peuvent offrir des opportunités d'apprentissage et améliorer la qualité de l'air, tout en réduisant les risques pour la santé liés à la chaleur.

  • 00:25:00 - 00:30:00

    Joe présente les impacts du changement climatique sur les espèces d'arbres en Californie, en soulignant que certaines espèces ne survivront pas aux températures croissantes et à la diminution des précipitations. Il discute également des zones climatiques et de leur pertinence pour la sélection des arbres.

  • 00:30:00 - 00:35:00

    Jen présente des outils en ligne pour aider à la sélection des arbres, y compris une base de données qui permet de filtrer les arbres en fonction de divers critères, y compris leur adaptation aux forêts scolaires.

  • 00:35:00 - 00:40:00

    Les conférenciers répondent aux questions du public, abordant des préoccupations concernant les ressources pour les États en dehors de la Californie et les risques liés à l'escalade des arbres dans les écoles.

  • 00:40:00 - 00:45:00

    Les participants sont encouragés à explorer les ressources disponibles et à s'inscrire aux prochaines conférences pour en apprendre davantage sur la conception des forêts scolaires.

  • 00:45:00 - 00:54:36

    La session se termine par des remerciements aux conférenciers et une invitation à rejoindre la série de conférences en février 2024.

Tampilkan lebih banyak

Peta Pikiran

Video Tanya Jawab

  • Quels sont les objectifs de l'initiative des forêts scolaires ?

    L'initiative vise à augmenter la canopée d'arbres dans les écoles publiques pour protéger les élèves des températures extrêmes dues au changement climatique.

  • Comment choisir les bons arbres pour une cour d'école ?

    Il est important de sélectionner des arbres adaptés au climat local, en tenant compte de leur taille, de leur entretien et des bénéfices écologiques.

  • Y a-t-il des ressources pour les écoles en dehors de la Californie ?

    Oui, le site Select Tree inclut des arbres de toute l'Amérique du Nord et des zones de rusticité USDA.

  • Comment le changement climatique affecte-t-il la sélection des arbres ?

    Le changement climatique entraîne des températures plus élevées et moins de précipitations, ce qui peut affecter la survie de certaines espèces d'arbres.

  • Quels outils en ligne sont disponibles pour aider à la sélection des arbres ?

    Le site Select Tree permet de filtrer les arbres en fonction de divers critères, y compris ceux adaptés aux écoles.

  • Comment les arbres peuvent-ils bénéficier aux élèves ?

    Les arbres offrent de l'ombre, améliorent la qualité de l'air, et créent des opportunités d'apprentissage et de jeu.

  • Quelles considérations de sécurité doivent être prises en compte lors de la plantation d'arbres ?

    Il est important de gérer les risques de grimper aux arbres et de s'assurer que les branches basses ne posent pas de danger.

  • Comment les écoles peuvent-elles réduire les coûts d'entretien des arbres ?

    En regroupant les arbres dans des zones forestières, les écoles peuvent réduire les tâches d'entretien comme le soufflage des feuilles.

  • Quels types d'arbres sont recommandés pour les forêts scolaires ?

    Des arbres de grande taille et adaptés au climat local sont recommandés pour maximiser les bénéfices à long terme.

  • Comment les arbres contribuent-ils à l'écosystème local ?

    Les arbres soutiennent la faune, améliorent la biodiversité et aident à la gestion des eaux pluviales.

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Gulir Otomatis:
  • 00:00:00
    hello and welcome everyone to the fourth
  • 00:00:04
    session of the schoolyard Forest design
  • 00:00:06
    lecture series I'm Lauren mcka uh with
  • 00:00:10
    green School yards America and Dante
  • 00:00:13
    sudski will be assisting with tech today
  • 00:00:16
    and we have a number of our other staff
  • 00:00:18
    present here today today's agenda will
  • 00:00:21
    include some introduction and updates
  • 00:00:23
    from Green Schools America followed by a
  • 00:00:26
    wonderful presentation by our guest
  • 00:00:28
    speakers and some audience Q&A
  • 00:00:34
    time this series is part of the national
  • 00:00:36
    schoolyard Forest system which is a
  • 00:00:39
    large scale initiative to increase tree
  • 00:00:40
    canopy on public school grounds across
  • 00:00:43
    the United United States to directly
  • 00:00:45
    shade and protect prek through 12th
  • 00:00:48
    grade students from extreme heat and
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    Rising temperatures due to climate
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    change California is the first state in
  • 00:00:54
    this initiative founded by Green schols
  • 00:00:56
    America and 10 strands in partnership
  • 00:00:59
    with calfire and the California
  • 00:01:01
    Department of Education we hope that the
  • 00:01:03
    sharing of information and expertise
  • 00:01:06
    about designing and caring for
  • 00:01:07
    schoolyards fors schoolyard Forest uh in
  • 00:01:11
    lectures like this one will help inspire
  • 00:01:13
    you to spread the word and help shift
  • 00:01:15
    what we see a schoolyard to be an
  • 00:01:17
    advocate for systems change we hope that
  • 00:01:19
    you'll check out our national schoolyard
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    for system Library which includes many
  • 00:01:23
    resources on designing implementing
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    caring for and using schoolyard Force as
  • 00:01:28
    well as curriculum I helpful articles on
  • 00:01:31
    the rationale and case studies I'd like
  • 00:01:33
    to just highlight two uh resources in
  • 00:01:36
    our library the California tree pallette
  • 00:01:38
    for schard Forest which we will uh share
  • 00:01:42
    in much more detail today is intended
  • 00:01:45
    for school districts Landscape
  • 00:01:46
    Architects and school communities to
  • 00:01:49
    easily select trees that are appropriate
  • 00:01:51
    for a scho yard Forest setting and will
  • 00:01:54
    Thrive as temperatures rise due to
  • 00:01:56
    climate change uh also the General
  • 00:02:00
    guidelines in how to select trees for
  • 00:02:02
    your schoolyard are geared toward
  • 00:02:04
    assisting schools in choosing suitable
  • 00:02:07
    trees for their region and schoolyard
  • 00:02:09
    environment that will Thrive long
  • 00:02:12
    term both resources can be found in the
  • 00:02:15
    design implementation and maintenance
  • 00:02:17
    chapter in our library and the link in
  • 00:02:19
    the chat and again we'll go over both of
  • 00:02:23
    these things in much more detail today
  • 00:02:25
    regarding this lecture Series today is
  • 00:02:28
    not the last one we invite you to join
  • 00:02:30
    us again in 2024 for more of the
  • 00:02:33
    schoolyard design lectures we will take
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    a break over the winter holidays and
  • 00:02:38
    reconvene on Thursday February 1st
  • 00:02:42
    2024 same time 11:00 a.m. to 12:00 p.m.
  • 00:02:45
    Pacific Standard time we'll continue to
  • 00:02:48
    have lectures at the same time the first
  • 00:02:50
    Thursday of each month throughout 2024
  • 00:02:53
    if you are already registered you need
  • 00:02:55
    not register again however you might
  • 00:02:57
    have had an issue this morning um please
  • 00:02:59
    do invite your friends and colleagues
  • 00:03:01
    next time uh some topics we hope to
  • 00:03:04
    cover in the next installment of
  • 00:03:06
    lectures include storm water management
  • 00:03:08
    air quality ther thermal and heat uh
  • 00:03:12
    Comfort on schoolyards wildlife habitat
  • 00:03:16
    and much more again all topics are
  • 00:03:19
    presented through the lens of including
  • 00:03:22
    schoolyard Forest as part of a living
  • 00:03:24
    schoolyard in the meantime we hope
  • 00:03:26
    you'll check out the recorded lectures
  • 00:03:28
    from Fall 20 23 which include many great
  • 00:03:33
    um lectures especially an overview of
  • 00:03:36
    what schoolyard forests are some key
  • 00:03:38
    Design Elements and how to center
  • 00:03:40
    children in those
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    designs we also have a growing
  • 00:03:44
    collection of schoolyard Forest case
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    studies we hope to include more overtime
  • 00:03:50
    especially from outside of California
  • 00:03:52
    and if your community has a schoolyard
  • 00:03:55
    forest or any related related
  • 00:03:58
    initiatives we'd love to he hear about
  • 00:04:00
    them uh there is also a survey link on
  • 00:04:03
    that case study page where you can share
  • 00:04:06
    information and
  • 00:04:07
    photos uh we hope to highlight some of
  • 00:04:10
    these in the coming
  • 00:04:14
    year so today I'm very excited to
  • 00:04:17
    welcome our guest speakers Ain Joe and
  • 00:04:20
    Jen who will outline the process for
  • 00:04:22
    selecting trees suitable for a
  • 00:04:24
    schoolyard with considerations for
  • 00:04:26
    function benefits safety and maintenance
  • 00:04:29
    they'll frame the importance of losing a
  • 00:04:31
    using a climate adapted tree planting
  • 00:04:34
    palette focused on trees that will
  • 00:04:35
    provide the greatest benefits for
  • 00:04:38
    schoolyard and local ecosystems as well
  • 00:04:41
    as how to use some useful online tree
  • 00:04:44
    selection tools we will have Q&A time
  • 00:04:48
    with the speakers after all three have
  • 00:04:50
    presented so while they're presenting
  • 00:04:53
    feel free to type your questions in the
  • 00:04:54
    chat and we'll address as many as we
  • 00:04:56
    were able to at that time either live or
  • 00:05:00
    um in the chat uh if you like you can
  • 00:05:03
    note if a question is directed to a
  • 00:05:05
    specific speaker or specific slide they
  • 00:05:08
    shared we'll also post the speaker bios
  • 00:05:11
    in the chat and at the end of each
  • 00:05:13
    presentation any relevant links to their
  • 00:05:16
    research or
  • 00:05:18
    presentation so a little bit about each
  • 00:05:20
    of our guests Aaron Schultz is a
  • 00:05:23
    landscape designer focused on bringing
  • 00:05:26
    Rich connection and immersive
  • 00:05:28
    interaction with nature into the
  • 00:05:30
    everyday spaces for Children Play and
  • 00:05:32
    Learn she works with Bay Tree designed
  • 00:05:35
    to create Landscapes with healthy
  • 00:05:37
    ecological systems Community reflection
  • 00:05:40
    and beneficial experiences for
  • 00:05:44
    children Joe McBride PhD is a professor
  • 00:05:48
    emeritus of landscape architecture and
  • 00:05:51
    Forestry at the University of California
  • 00:05:53
    Berkley he taught courses in ecology
  • 00:05:56
    environmental analysis and urban
  • 00:05:58
    forestry at Berkeley before retiring in
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    20
  • 00:06:03
    2014 his research focused on studies on
  • 00:06:07
    Forest ecology urban forestry vegetation
  • 00:06:10
    management fuel management and the
  • 00:06:12
    impacts of climate change on Urban
  • 00:06:16
    forests in
  • 00:06:18
    California he is the author of two books
  • 00:06:20
    the world's Urban forest and
  • 00:06:22
    reconstruction of urban Forest after
  • 00:06:24
    World War II he has done Consulting work
  • 00:06:27
    in urban forestry vegetation man
  • 00:06:29
    management fuel reduction Management in
  • 00:06:32
    California and Beyond he is a fellow of
  • 00:06:35
    the Society of American Foresters a
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    member of the Chinese Academy of
  • 00:06:39
    Forestry and a California licensed
  • 00:06:41
    professional Forester and he's received
  • 00:06:43
    awards for teaching from the University
  • 00:06:46
    of California Society of American
  • 00:06:48
    Foresters and Council of Educators and
  • 00:06:49
    Landscape
  • 00:06:50
    architecture and lastly uh Dr Jen Yos is
  • 00:06:54
    a professor of botney at calpal St Louis
  • 00:06:56
    abispa where she teaches ecology
  • 00:06:58
    evolution
  • 00:07:00
    and FL of California she studies trees
  • 00:07:02
    from around the world Urban forests and
  • 00:07:05
    climate resiliency she works with the
  • 00:07:07
    urban Forest Institute to create tools
  • 00:07:09
    that help people better understand their
  • 00:07:11
    Urban forest and make good decisions
  • 00:07:14
    about tree
  • 00:07:15
    selection so without further Ado I will
  • 00:07:18
    pass it off to Aaron to get us started
  • 00:07:21
    thank you for being here so our brains
  • 00:07:25
    are hardwired to find comfort and
  • 00:07:28
    connection with trees they've been
  • 00:07:30
    proven to bring a sense of calm and
  • 00:07:32
    well-being their mere existence has been
  • 00:07:34
    shown to cause a decline in disruptive
  • 00:07:36
    behavior in schools both on the Playard
  • 00:07:38
    and in the classroom and trees are more
  • 00:07:41
    than the shade they provide we form a
  • 00:07:43
    kinship with them and they can become a
  • 00:07:45
    part of a
  • 00:07:46
    community the trees are not as simple as
  • 00:07:49
    installing a manufactured product but I
  • 00:07:51
    will ask what manufactured product
  • 00:07:53
    becomes better and grows with age
  • 00:07:56
    instead of devaluation there's an
  • 00:07:58
    immense value created over time through
  • 00:08:00
    the growth of a tree when you think
  • 00:08:02
    about what makes a park or a college
  • 00:08:04
    campus a comfortable and beautiful place
  • 00:08:06
    to be the mature and large sature trees
  • 00:08:09
    there almost certainly are what come to
  • 00:08:11
    mind so selecting the right tree species
  • 00:08:13
    for a schoolyard is critical as the
  • 00:08:16
    trees are a long-term investment and
  • 00:08:18
    designing a schoolyard Forest involves
  • 00:08:21
    careful consideration of tree selection
  • 00:08:23
    and placement as well as a plan for
  • 00:08:25
    periodic care and maintenance so right
  • 00:08:27
    trees in the right place with right plan
  • 00:08:30
    I'm going to start with uh briefly
  • 00:08:32
    talking about the right place um some of
  • 00:08:36
    the considerations that go into where
  • 00:08:38
    trees are put on a schoolyard Green
  • 00:08:40
    School America has some wonderful
  • 00:08:43
    resources on this topic in their
  • 00:08:44
    schoolyard Forest resource system
  • 00:08:46
    Library which Lauren just mentioned I
  • 00:08:49
    would recommend looking at that to get
  • 00:08:50
    your bearings and also the previous
  • 00:08:52
    schoolyard uh lecture by Lisa Howard and
  • 00:08:56
    Al Alejandra Kessa which focused on the
  • 00:08:58
    design process today I'm going to focus
  • 00:09:01
    we are going to focus on specifically
  • 00:09:02
    which trees to select but of course that
  • 00:09:04
    does depend on where the trees will be
  • 00:09:06
    and the space provided for them so I
  • 00:09:08
    want to touch on design considerations
  • 00:09:10
    and specifically there's several
  • 00:09:12
    strategies that will increase the
  • 00:09:13
    likelihood of developing healthy and
  • 00:09:15
    beneficial trees increasing play
  • 00:09:18
    affordances and decreasing maintenance
  • 00:09:21
    costs in the graphics to the right I've
  • 00:09:24
    shown two different ways to plant six
  • 00:09:25
    trees in the option at the top six tree
  • 00:09:28
    Wells cut out of an asphalt yard with
  • 00:09:30
    benches surrounding the trees to block
  • 00:09:33
    the tripping Hazard caused by the
  • 00:09:34
    planting area uh planting trees in a
  • 00:09:37
    tree well surrounded by asphalt is
  • 00:09:39
    basically the same as planting them in a
  • 00:09:41
    container at the size of the planting
  • 00:09:42
    area roots cannot spread easily under
  • 00:09:45
    playground asphalt which can sometimes
  • 00:09:46
    be extremely thick having built up over
  • 00:09:49
    successive asphalt pores alternatively
  • 00:09:52
    the option on the bottom a location is
  • 00:09:55
    chosen on the schoolyard for a forested
  • 00:09:57
    area where the space is has natural
  • 00:10:00
    surfaces living soil fed by a healthy
  • 00:10:02
    system and the potential for understory
  • 00:10:05
    plantings the tree roots have greater
  • 00:10:07
    access to water and air and greater
  • 00:10:09
    space to spread out they have more
  • 00:10:11
    rootable soil in this configuration
  • 00:10:14
    larger trees may be selected which
  • 00:10:15
    create greater benefits for longer
  • 00:10:17
    periods of time as they age even if you
  • 00:10:20
    plant a large stretcher Tree in a small
  • 00:10:22
    planting area that tree will not develop
  • 00:10:25
    to its full potential it will not
  • 00:10:27
    provide the shade you're looking for and
  • 00:10:28
    it may even survive the images uh above
  • 00:10:33
    are from the same Elementary School
  • 00:10:35
    which has a wonderful tree canopy with
  • 00:10:37
    mature trees that were planted with the
  • 00:10:39
    intent of creating a shaded play Space
  • 00:10:41
    the school includes play structures
  • 00:10:43
    within this tree canopy that stay
  • 00:10:45
    comfortable and provide a calming
  • 00:10:47
    protective Place space for play um the
  • 00:10:50
    planter style trees do add to this
  • 00:10:53
    canopy at the edges however if they were
  • 00:10:55
    the only trees on the schoolyard they do
  • 00:10:57
    not provide the same level of benefits
  • 00:10:59
    as those larger species planted in the
  • 00:11:01
    forested
  • 00:11:03
    area a dedicated schoolyard Forest has
  • 00:11:06
    the opportunity to plant larger trees
  • 00:11:08
    and a campus is the perfect place to
  • 00:11:10
    cultivate a tree that will grow and live
  • 00:11:12
    and Thrive for many many years as a
  • 00:11:15
    large tree matures its benefits continue
  • 00:11:17
    to grow more shade deeper and cooler
  • 00:11:19
    shade living soil more carbon SEC
  • 00:11:23
    restoration more storm water capture
  • 00:11:25
    more habitat creation and on and on uh
  • 00:11:29
    smaller statue tree likely cost about
  • 00:11:31
    the same to install however we have a
  • 00:11:33
    much shorter lifespan its benefits will
  • 00:11:35
    be shorter lived as well as it can never
  • 00:11:37
    never deliver what a large tree can so
  • 00:11:41
    creating schoolyard forests with space
  • 00:11:42
    for larger trees you'll be providing
  • 00:11:45
    benefits to students and the community
  • 00:11:47
    for a long long time a space that may
  • 00:11:50
    become the sole of a
  • 00:11:52
    campus again there are very few Capital
  • 00:11:55
    Investments that grow and improve
  • 00:11:57
    themselves however by selecting large
  • 00:11:59
    stature Long Live species suited to your
  • 00:12:01
    climate you can put in motion the
  • 00:12:03
    beginning of a hugely beneficial part of
  • 00:12:05
    a school campus if you look at this
  • 00:12:07
    graphic a large lived a long live tree
  • 00:12:11
    uh will be outperforming a smaller
  • 00:12:13
    stature tree and terms of benefits quite
  • 00:12:16
    quickly and at the end of the relatively
  • 00:12:18
    shorter lifespan the smaller tree will
  • 00:12:20
    die and need to be replaced starting
  • 00:12:22
    from scratch or maybe there won't be the
  • 00:12:23
    funds to replant it at all alternatively
  • 00:12:27
    the the larger tree will be fully
  • 00:12:29
    established when the smaller tree dies
  • 00:12:31
    and it will be an important part of the
  • 00:12:32
    campus and it will still continue to
  • 00:12:34
    grow and improve from there thinking
  • 00:12:36
    into the future is so important when
  • 00:12:38
    planting trees you can't plant a
  • 00:12:40
    gorgeous six-year-old oak tree but you
  • 00:12:42
    can start that process in motion today
  • 00:12:44
    by selecting large statur trees planting
  • 00:12:47
    them in large areas of rootable soil and
  • 00:12:49
    setting up a good maintenance plan and
  • 00:12:52
    smaller trees can be effectively used as
  • 00:12:53
    understory to larger trees within the
  • 00:12:56
    skid Forest providing a more human scale
  • 00:12:59
    and for existing areas where only a
  • 00:13:01
    small tree would fit the final note on
  • 00:13:03
    design considerations relates to
  • 00:13:05
    maintenance grouping trees within a
  • 00:13:07
    schoolyard forest or nature exploration
  • 00:13:09
    area means that weekly maintenance
  • 00:13:11
    chores such as blowing leaves off
  • 00:13:13
    pavement are greatly reduced leaves that
  • 00:13:15
    fall on the floor floor should be left
  • 00:13:16
    in place these boost the ecosystem
  • 00:13:18
    suppress weeds and provide loose parts
  • 00:13:20
    for students to play with alternatively
  • 00:13:22
    trees that are situated on as Islands
  • 00:13:25
    surrounded by pavement will drop leaves
  • 00:13:27
    and debris onto the pavement which could
  • 00:13:28
    create a slipping or tripping Hazard and
  • 00:13:30
    may need regular maintenance to remove
  • 00:13:33
    so now that you've dedicated a space in
  • 00:13:35
    the Playard for a schoolyard Forest
  • 00:13:38
    which trees uh would be best to put
  • 00:13:40
    there I want to talk about some of the
  • 00:13:42
    goals and considerations that go into
  • 00:13:44
    tree selection because schoolyards are
  • 00:13:46
    unique environment with particular needs
  • 00:13:48
    and concerns firstly it's important to
  • 00:13:51
    choose trees um that will easily thrive
  • 00:13:54
    in the school's climate next student
  • 00:13:56
    benefits should be considered When
  • 00:13:58
    selecting trees species children
  • 00:14:00
    gravitate to trees and can love them to
  • 00:14:02
    death but once established trees can
  • 00:14:05
    bring great learning opportunities they
  • 00:14:07
    create free loose parts for students to
  • 00:14:09
    play with trees help block pollutants
  • 00:14:11
    and clean the air and of course they can
  • 00:14:14
    help reduce the health risks due to
  • 00:14:17
    overheating finally maximizing the
  • 00:14:19
    ecological benefits not only helps the
  • 00:14:21
    school forest ecosystem to thrive and
  • 00:14:24
    helps to connect the larger ecosystem of
  • 00:14:26
    the neighborhood but these benefits
  • 00:14:28
    directly feedback into benefits for
  • 00:14:30
    students as well again bringing in
  • 00:14:33
    curriculum related opportunities and
  • 00:14:35
    demonstrating the cyclical effects of a
  • 00:14:37
    thriving ecosystem so the best place to
  • 00:14:40
    start When selecting a tree is to
  • 00:14:42
    understand the climate you are in in
  • 00:14:44
    order to choose a tree that will easily
  • 00:14:46
    Thrive um luckily on the west coast
  • 00:14:48
    Sunset climate zones provide an
  • 00:14:50
    incredible resource which defines
  • 00:14:53
    microclimates based on the length of the
  • 00:14:55
    growing season the timing and amount of
  • 00:14:57
    rainfall winter lows summer highs wind
  • 00:15:01
    and humidity and this is more useful
  • 00:15:03
    than the USDA plant hardiness zones
  • 00:15:06
    which are based strictly on winter loads
  • 00:15:08
    so once you know your climate zone you
  • 00:15:11
    can then pick trees that are best suited
  • 00:15:12
    to your particular area and we've
  • 00:15:14
    created uh lists or pallets of
  • 00:15:16
    schoolyard forest trees by Sunset Z so
  • 00:15:19
    once you look up your school zone you
  • 00:15:21
    can reference the appropriate list to
  • 00:15:23
    see what trees you should select from
  • 00:15:25
    taking this idea one step further uh
  • 00:15:28
    considering climate change change is
  • 00:15:30
    important as trees live a long time the
  • 00:15:32
    tree you plant today will hopefully be
  • 00:15:35
    living in 50 or even 100 years or more
  • 00:15:38
    so in order to choose trees that will
  • 00:15:39
    continue to thrive where they are
  • 00:15:41
    planted we have adjusted the recommended
  • 00:15:44
    Sunset zones for the trees on the SC
  • 00:15:46
    Forest list to account for anticipated
  • 00:15:49
    climate change and this research has
  • 00:15:51
    been generously provided by Joe McBride
  • 00:15:54
    uh who will be speaking to it later in
  • 00:15:55
    the
  • 00:15:56
    lecture here's an example of a portion
  • 00:15:59
    of the Zone 17 schoolyard Forest tree
  • 00:16:01
    list uh the trees are segmented by large
  • 00:16:04
    medium and small size as well as a
  • 00:16:06
    section of fruit
  • 00:16:08
    trees each of the trees list in for a
  • 00:16:10
    given zone are suitable for the Zone
  • 00:16:12
    today as well as in the predicted future
  • 00:16:14
    climate for that
  • 00:16:16
    area um the list shows the climate
  • 00:16:20
    adapted Sunset Zone whether the tree is
  • 00:16:22
    evergreen or deciduous the proper sun
  • 00:16:25
    exposure um it's expected height and
  • 00:16:28
    canopy with at maturity growth rate and
  • 00:16:30
    water use this information can be useful
  • 00:16:33
    When selecting trees for a schoolyard
  • 00:16:35
    Forest however we've also included a
  • 00:16:37
    more extended list that includes
  • 00:16:38
    information that relates to the various
  • 00:16:41
    benefits you hope to derive from the
  • 00:16:43
    trees uh selected for a schoolyard
  • 00:16:46
    Forest so the expanded tree list
  • 00:16:48
    includes the same basic information as
  • 00:16:51
    well as more detailed information on
  • 00:16:54
    adaptability to specific conditions and
  • 00:16:58
    more specialized
  • 00:17:00
    characteristics um and the more
  • 00:17:02
    specialized characteristics are
  • 00:17:04
    here there is a section for student
  • 00:17:07
    benefits and one for ecological benefits
  • 00:17:10
    and further
  • 00:17:11
    considerations there's a lot of data
  • 00:17:14
    here but once you've thought about the
  • 00:17:17
    goals you want to achieve with your
  • 00:17:18
    schoolyard Forest you can use this
  • 00:17:20
    expanded list excuse
  • 00:17:24
    me you can use this expanded list to
  • 00:17:27
    find the trees that are right for your
  • 00:17:30
    climate and deliver on those goals and
  • 00:17:32
    if you'd like a more interactive
  • 00:17:34
    filtering experience like online
  • 00:17:36
    shopping much of that data can be found
  • 00:17:40
    um and filtered on the select Tree
  • 00:17:42
    website this is an incredible resource
  • 00:17:45
    maintained by calp and Janos will be
  • 00:17:48
    speaking to that tool later in the
  • 00:17:50
    lecture uh to explain how that
  • 00:17:55
    works looking at those more detailed
  • 00:17:58
    considerations we provided information
  • 00:18:00
    on drought tolerance uh which is a
  • 00:18:02
    measure of the tree survivability in the
  • 00:18:04
    event of a drought period And this is
  • 00:18:06
    different than water use field which
  • 00:18:08
    shows typical water requirements since
  • 00:18:11
    irrigation is sometimes not possible in
  • 00:18:13
    a schoolyard Forest this can be an
  • 00:18:14
    important
  • 00:18:16
    consideration depending on your site
  • 00:18:18
    wind tolerance comes into play on
  • 00:18:20
    certain sites as well as fire
  • 00:18:22
    considerations so schools in a high high
  • 00:18:24
    fire severity Zone would avoid more fire
  • 00:18:27
    prone species used which ignite more
  • 00:18:30
    easily however this is not as much of an
  • 00:18:33
    issue in a more urban setting and
  • 00:18:35
    finally phyto buffering which is the
  • 00:18:37
    technique of using a living buffer made
  • 00:18:39
    of dense trees and shrubs to filter
  • 00:18:41
    pollution caused by a nearby pollution
  • 00:18:44
    Source such as a highway um so that's
  • 00:18:46
    also listed on the expanded list and to
  • 00:18:51
    briefly explain phyto buffering uh
  • 00:18:54
    situating schoolyard trees between the
  • 00:18:56
    pollution source and the school can help
  • 00:18:58
    red reduce the amount of poll pollutants
  • 00:19:00
    that the school is exposed to these
  • 00:19:03
    shelter belts impede the flow of
  • 00:19:05
    polluted air by creating a dense
  • 00:19:06
    multi-layer barrier all the way from the
  • 00:19:08
    ground to the
  • 00:19:09
    canopy but tree correct tree selection
  • 00:19:12
    here um is
  • 00:19:14
    important thinking about how trees can
  • 00:19:17
    benefit students Beyond providing
  • 00:19:21
    shade we listed additional features of
  • 00:19:23
    these trees that can add to the richness
  • 00:19:25
    of a schoolyard play Space trees provide
  • 00:19:29
    a living and dynamic connection to both
  • 00:19:32
    our local histories and ecologies as
  • 00:19:34
    well as cultures and ecosystems in other
  • 00:19:36
    parts of the world and bringing those
  • 00:19:39
    places right into the everyday
  • 00:19:40
    experiences of students in a very real
  • 00:19:43
    way these P potential curriculum
  • 00:19:46
    connections and Hands-On learning
  • 00:19:48
    opportunities can deepen learning and
  • 00:19:49
    engage
  • 00:19:51
    students they also produce loose play
  • 00:19:53
    Parts in the form of cones seeds uh seed
  • 00:19:56
    pods flowers stems leaves we've listed
  • 00:19:58
    which trees produce these interesting
  • 00:20:02
    tactile
  • 00:20:04
    objects as well as those with additional
  • 00:20:07
    features such as weeping branches
  • 00:20:10
    visible root structures and aromatic
  • 00:20:12
    foliage each of these features adds more
  • 00:20:15
    interaction and interest to the
  • 00:20:16
    schoolyard
  • 00:20:17
    forest and by selecting a variety of
  • 00:20:20
    trees uh for the space you're TR
  • 00:20:22
    opposing those different features
  • 00:20:24
    highlighting the biological differences
  • 00:20:26
    in tree species and immersing students
  • 00:20:29
    in these distinctions and they'll begin
  • 00:20:31
    to notice and interact with and discover
  • 00:20:33
    the Science Now embedded in their
  • 00:20:38
    schoolyard trees can create the
  • 00:20:40
    architecture of the Playard defining
  • 00:20:42
    spaces and offering those small tucked
  • 00:20:44
    in places that children gravitate to
  • 00:20:47
    bringing a human scale to the often
  • 00:20:50
    Barren and exposed Playard for more
  • 00:20:53
    discussion on the health benefits both
  • 00:20:55
    mental and physical that trees can
  • 00:20:57
    provide
  • 00:20:58
    I'd like you to direct you the previous
  • 00:21:00
    school yard Forest design lecture by
  • 00:21:01
    Marcel rainy senior manager Office of
  • 00:21:04
    well-being Children's Hospital Los
  • 00:21:06
    Angeles who outlined how schoolyard
  • 00:21:08
    Forest can help to address health and
  • 00:21:10
    academic inequities through the benefits
  • 00:21:12
    of a dense and healthy tree canopy and
  • 00:21:14
    in that same lecture Claire Claire Latin
  • 00:21:17
    associate professor and
  • 00:21:19
    chair Hal poly pona spoke to the
  • 00:21:23
    beneficial effects of human skilled
  • 00:21:25
    spaces on
  • 00:21:26
    Playard on a play and how breaking up
  • 00:21:29
    wide open expanses of asphalt or grass
  • 00:21:31
    with trees or other plantings can elicit
  • 00:21:33
    feelings of safety and reduce disorderly
  • 00:21:35
    conduct in
  • 00:21:37
    students so back to the expanded list
  • 00:21:39
    the final section contains ecological
  • 00:21:41
    benefits and other
  • 00:21:43
    considerations choosing native
  • 00:21:45
    California species will benefit the
  • 00:21:47
    ecosystem and support Wildlife including
  • 00:21:50
    Birds butterflies and mths this owl was
  • 00:21:53
    photographed at an owl habitat set up at
  • 00:21:54
    a high school and shows how
  • 00:21:57
    incorporating natural ecosystems into a
  • 00:21:59
    school can bring interest and excitement
  • 00:22:01
    to a schoolyard on top of the ecological
  • 00:22:03
    benefits When choosing trees we love to
  • 00:22:06
    see a diverse selection choosing all the
  • 00:22:09
    same tree can result in several
  • 00:22:10
    undesirable outcomes they may all suffer
  • 00:22:13
    from the same ailment insect or climate
  • 00:22:16
    related issues or they may all die
  • 00:22:18
    around the same time at the end of their
  • 00:22:19
    lives instead of doing that selecting a
  • 00:22:22
    variety of trees from this list for your
  • 00:22:24
    schoolyard Forest will not only create a
  • 00:22:27
    more natural inviting look but it will
  • 00:22:29
    help support local
  • 00:22:31
    ecosystems the trees on this list have
  • 00:22:33
    been thoroughly vetted to thrive in a
  • 00:22:36
    schoolyard Forest so you can be
  • 00:22:37
    confident selecting a tree you may not
  • 00:22:39
    have heard of that fits the zone and
  • 00:22:41
    site location choosing trees that are
  • 00:22:44
    not the ones that always get chosen also
  • 00:22:46
    signals to plant nurseries to increase
  • 00:22:49
    the diversity of their
  • 00:22:50
    offerings which can uh benefit the
  • 00:22:53
    ecology at
  • 00:22:55
    large finally there are some
  • 00:22:57
    considerations to keep in mind When
  • 00:22:58
    selecting trees to avoid potential
  • 00:23:00
    problems if the tree will be planted
  • 00:23:02
    near pavement then you want to avoid
  • 00:23:04
    those species with medium or high root
  • 00:23:06
    damage
  • 00:23:07
    potential however if the tree will be in
  • 00:23:09
    a nature exploration area away from
  • 00:23:11
    pavement then a visible root system can
  • 00:23:14
    be a feature for play and provide
  • 00:23:16
    topographical changes that are
  • 00:23:18
    beneficial for body development of body
  • 00:23:20
    awareness and balance we've also
  • 00:23:22
    considered trees that are high allergy
  • 00:23:25
    triggers and have excluded some of those
  • 00:23:27
    uh if you're curious about a tree that
  • 00:23:28
    you notice is missing from our lists
  • 00:23:30
    there's a list of exclusions and the
  • 00:23:33
    reasons on the GSA website if you want
  • 00:23:35
    to dig into that
  • 00:23:37
    so all in uh the schoolyard Forest tree
  • 00:23:40
    list will hopefully provide the tools to
  • 00:23:42
    select trees that will add to your
  • 00:23:44
    specific schoolyard forest and benefit
  • 00:23:46
    students and the community and the
  • 00:23:48
    ecology at large trees really have
  • 00:23:52
    incredible power to transform our
  • 00:23:54
    environments children deserve to benefit
  • 00:23:57
    from their presence as well and
  • 00:23:59
    hopefully this effort will set in motion
  • 00:24:01
    the planting of beneficial big trees
  • 00:24:04
    that will grow and Thrive and become
  • 00:24:07
    beloved now I'll pass the presentation
  • 00:24:10
    to Joe McBride all right uh I'm Joe
  • 00:24:14
    McBride uh as uh uh Lauren introduced me
  • 00:24:18
    a a retired Professor from UC Berkeley
  • 00:24:22
    and I was uh asked to take a look at the
  • 00:24:27
    this uh that uh the uh bay tree design
  • 00:24:33
    had put together uh from the standpoint
  • 00:24:36
    of work that I had done on climate
  • 00:24:39
    change and its impact on trees in
  • 00:24:42
    California uh these lists uh as uh Erin
  • 00:24:47
    had described uh are related to the
  • 00:24:50
    climate zones in California that Sunset
  • 00:24:53
    magazine has put together climate zone
  • 00:24:56
    number 22
  • 00:24:58
    you can see down here is in the Los
  • 00:25:00
    Angeles area and these are trees that
  • 00:25:03
    are adapted to that area uh based on the
  • 00:25:08
    uh parameters in the sunset uh uh
  • 00:25:11
    climate zone uh
  • 00:25:14
    in
  • 00:25:15
    2018 eigor laon and I published a paper
  • 00:25:19
    looking at the impact of future climate
  • 00:25:23
    change on tree species in California
  • 00:25:25
    cities primarily focusing on Street
  • 00:25:28
    trees and what I'd like to do this
  • 00:25:31
    morning is to briefly re review what we
  • 00:25:35
    know about climate change and then talk
  • 00:25:38
    about the analysis of climate change uh
  • 00:25:41
    that I did along with uh Igor Lon with
  • 00:25:44
    regard to uh the future uh suitability
  • 00:25:49
    of trees in different California cities
  • 00:25:52
    and then finally say a little something
  • 00:25:53
    about the trees that we identified that
  • 00:25:56
    we feel should not be planted in
  • 00:25:59
    schoolyards due to climate change um
  • 00:26:03
    there have been a number of uh studies
  • 00:26:06
    uh about the future of California's
  • 00:26:09
    climate and they all point to the fact
  • 00:26:11
    that temperatures will get warmer uh
  • 00:26:14
    kayen and his associates in 19 pardon me
  • 00:26:19
    2009 uh produced these map showing uh
  • 00:26:22
    the increase in temperature that was
  • 00:26:25
    anticipated by the year 20 99 and as you
  • 00:26:29
    see the areas in the southwest part of
  • 00:26:32
    our state uh become darker red meaning
  • 00:26:36
    that they're going to become warmer but
  • 00:26:38
    also at closest inspection you see that
  • 00:26:42
    temperatures will be rising uh
  • 00:26:44
    throughout the state with some uh
  • 00:26:47
    potentially significant increases in the
  • 00:26:50
    lower part of the Central Valley as well
  • 00:26:52
    as the
  • 00:26:53
    Southwest uh in addition to these
  • 00:26:56
    changes in
  • 00:26:58
    temperature uh studies of climate change
  • 00:27:02
    have indicated that for a large portion
  • 00:27:04
    of California we will see a decrease in
  • 00:27:07
    annual precipitation and in Berkeley
  • 00:27:10
    California that will amount to about
  • 00:27:12
    five inches of annual
  • 00:27:15
    precipitation uh from uh
  • 00:27:18
    2070 uh well in compared to the uh 1961
  • 00:27:23
    1990 averages uh and this prediction is
  • 00:27:28
    for the period between 2070 and
  • 00:27:34
    2100 another thing that is going to be
  • 00:27:37
    changing is the amount of snow that we
  • 00:27:40
    receive in California the map on the
  • 00:27:43
    left shows the snow pack uh in uh the
  • 00:27:47
    Sierra and the Cascade ranges to the
  • 00:27:50
    north uh and that is compared with the
  • 00:27:53
    prediction uh made by the California
  • 00:27:56
    Department of Water Water Resources to
  • 00:27:59
    the uh snow pack uh in the year
  • 00:28:02
    2090 uh many of our cities depend upon
  • 00:28:05
    this snow pack uh for uh drinking water
  • 00:28:10
    uh we uh experienced a serious drought
  • 00:28:13
    from 2014 to 2016 in which uh cities
  • 00:28:18
    like
  • 00:28:19
    Berkeley basically restricted lawn
  • 00:28:23
    irrigation irrigation of trees because
  • 00:28:26
    there had been solar little snow pack
  • 00:28:28
    and our reservoirs were getting down to
  • 00:28:31
    critical levels uh we might sum these
  • 00:28:35
    predicted changes of with these two
  • 00:28:38
    particular slides it's going to get
  • 00:28:40
    hotter and we're going to have less
  • 00:28:43
    water and those are going to have
  • 00:28:45
    impacts not only on people directly in
  • 00:28:48
    the state but they're going to have
  • 00:28:50
    impacts on trees in the state because
  • 00:28:54
    some trees uh will not do well under
  • 00:28:58
    extreme heat conditions and many of our
  • 00:29:01
    Urban trees require irrigation and we
  • 00:29:03
    may not have water or irrigation during
  • 00:29:07
    that drought period uh trees uh in
  • 00:29:10
    Berkeley California were significantly
  • 00:29:14
    impacted uh by The increased summer
  • 00:29:17
    temperatures and the lack of water for
  • 00:29:19
    irrigation and here are a couple of
  • 00:29:21
    typical London plain trees along San
  • 00:29:25
    Pablo Avenue and Berkeley uh that are
  • 00:29:28
    exhibiting a significant loss of foliage
  • 00:29:31
    as a result and some trees along San
  • 00:29:35
    Pablo actually perished during this
  • 00:29:38
    draft now the second thing I want to
  • 00:29:41
    talk about is uh the analysis of the
  • 00:29:44
    impact of climate change on Street trees
  • 00:29:47
    in California uh this analysis was based
  • 00:29:52
    on 16 climate zones that you see on the
  • 00:29:56
    left uh that were developed by the
  • 00:29:59
    California Department of Water Resources
  • 00:30:02
    and were connected to a program called
  • 00:30:06
    Cal adapt uh for each of these 16 zones
  • 00:30:10
    uh we chose a an example City that
  • 00:30:14
    typified the topography the geography uh
  • 00:30:18
    of each of the zones and uh Zone number
  • 00:30:22
    three Berkeley was picked as an example
  • 00:30:25
    City we used a program called Cal adapt
  • 00:30:29
    and there's a link to this program uh at
  • 00:30:31
    the end of my
  • 00:30:33
    presentation that allows one uh to uh
  • 00:30:36
    determine what future temperatures are
  • 00:30:39
    going to be uh in uh the 16 climate
  • 00:30:43
    zones in California and this is the data
  • 00:30:46
    that was derived from that our example
  • 00:30:49
    city of Berkeley California uh currently
  • 00:30:53
    has a historic July average maximum
  • 00:30:56
    temperature of of about
  • 00:30:58
    70° and by the year uh
  • 00:31:01
    2099 that will raise to 80 Dees will be
  • 00:31:04
    a 10 degree increase uh in uh the
  • 00:31:09
    maximum July temperatures U and this
  • 00:31:13
    shows uh that change and then uh what we
  • 00:31:17
    were doing with this data was trying to
  • 00:31:20
    identify a comparison City in this case
  • 00:31:23
    for the city of Berkeley Santa Ana
  • 00:31:26
    currently has
  • 00:31:28
    the same uh uh temperature the historic
  • 00:31:31
    July average maximum temperature as is
  • 00:31:35
    predicted for the city of
  • 00:31:38
    Berkeley uh here's an another example
  • 00:31:42
    Stockton its summer temperature its
  • 00:31:45
    maximum temperature uh will become uh
  • 00:31:48
    close to that of uh the town of Barstow
  • 00:31:51
    in
  • 00:31:52
    California and so these are the
  • 00:31:54
    comparison cities that uh we identified
  • 00:31:58
    in this process and Stockton uh for
  • 00:32:03
    example uh
  • 00:32:05
    historically their summer average
  • 00:32:07
    maximum was 90 it is predicted to be 101
  • 00:32:11
    and the closest city to that now is
  • 00:32:14
    Barstow California so if one would go to
  • 00:32:18
    Stockton California and identify of the
  • 00:32:21
    street trees in that City and then go to
  • 00:32:26
    Barstow and identify uh Street trees in
  • 00:32:30
    in this theoretical example uh there
  • 00:32:33
    would be missing certain trees in Baro
  • 00:32:36
    that were not present in uh Stockton
  • 00:32:39
    today and so if those trees were missing
  • 00:32:44
    because of the change in temperature uh
  • 00:32:46
    we would assume that uh they would not
  • 00:32:49
    survive in Stockton uh in by the year
  • 00:32:52
    2099 or if they did survive uh they
  • 00:32:55
    would not perform very very well uh to
  • 00:33:00
    reinforce our interpretation of this uh
  • 00:33:03
    potential loss of trees we interviewed
  • 00:33:06
    arborus and City Foresters in each of
  • 00:33:09
    the comparison cities to find out what
  • 00:33:13
    species we felt would not be present
  • 00:33:17
    were not present at the present time
  • 00:33:20
    because of uh temperature or irrigation
  • 00:33:23
    for the city of Stockton there were four
  • 00:33:25
    trees outlined in red here uh that we
  • 00:33:29
    predicted based on the increas in
  • 00:33:32
    temperature uh that would not uh be able
  • 00:33:35
    to survive or do well in Stockton and
  • 00:33:39
    these were confirmed uh in our
  • 00:33:41
    interviews in Barstow uh our interviews
  • 00:33:45
    with uh arborus that uh they had been
  • 00:33:49
    tried in barow and because of the high
  • 00:33:52
    temperature or because of high
  • 00:33:54
    irrigation requirements uh that they uh
  • 00:33:57
    did not survive or they stopped planting
  • 00:34:01
    them because of the irrigation
  • 00:34:03
    requirements uh this is a summary slide
  • 00:34:07
    of the 16 cities uh that we uh used in
  • 00:34:12
    our particular study uh showing in Gray
  • 00:34:16
    uh the number of species that made up
  • 00:34:19
    the uh top 20% of canopy cover in the
  • 00:34:23
    city or I should say the top 20 uh um
  • 00:34:27
    numbers of trees in the city uh and the
  • 00:34:31
    black bars show the number that uh are
  • 00:34:36
    predicted uh to uh survive uh in the
  • 00:34:40
    year 2099 so for eure uh it's not going
  • 00:34:44
    to get warm enough to really exclude any
  • 00:34:47
    of the species that uh uh are presently
  • 00:34:52
    there uh but if we move to some of these
  • 00:34:54
    other cities like uh yuk a uh about
  • 00:34:59
    uh only 60% of the currently used cities
  • 00:35:04
    uh are pardon me used trees are going to
  • 00:35:07
    be able to to survive and as we get down
  • 00:35:10
    into parts of Southern California these
  • 00:35:13
    percentages these numbers get uh quite
  • 00:35:16
    low if we're Inland into this area that
  • 00:35:19
    was in dark red in the maps predicting
  • 00:35:22
    the climate change and so for the study
  • 00:35:26
    uh the uh 10 uh climate zones listed
  • 00:35:30
    here and I want to remind you these are
  • 00:35:33
    not Sunset climate zones uh but uh cow
  • 00:35:36
    Water Resources climate zones uh these
  • 00:35:39
    trees uh will not do well or will not
  • 00:35:43
    survive uh by
  • 00:35:45
    2099 in the particular City shown now
  • 00:35:50
    these climate zones uh are developed uh
  • 00:35:54
    and were by the California energy
  • 00:35:57
    commission and were used by cadap for
  • 00:36:01
    predicting temperatures whereas the
  • 00:36:03
    Sunset magazine uh climate zones were
  • 00:36:06
    used by Bay tree design to come up with
  • 00:36:09
    their list of tree species and so uh the
  • 00:36:14
    issue that was sort of before us was to
  • 00:36:17
    how do we Rectify these two
  • 00:36:19
    classification systems and identify
  • 00:36:21
    trees that should not be planted in
  • 00:36:25
    schoolyards uh here
  • 00:36:27
    again is the list of proposed trees for
  • 00:36:30
    climate zone 22 in Los Angeles and our
  • 00:36:35
    assignment was to look at this list uh
  • 00:36:38
    and see if there's anything there that
  • 00:36:41
    uh is unlikely to survive due to
  • 00:36:44
    increasing temperatures so that required
  • 00:36:46
    the comparison of the two climate zone
  • 00:36:49
    appr approaches that had been used and
  • 00:36:54
    we uh uh looked at
  • 00:36:57
    overlay maps of those uh particular
  • 00:37:00
    zones and for example uh Zone number one
  • 00:37:05
    here is the uh Sunset climate zone and
  • 00:37:10
    it is completely overlapped or is equal
  • 00:37:14
    to uh the energy commission Zone 16 uh a
  • 00:37:18
    more complicated situation arises with
  • 00:37:22
    uh Sunset climate zone 7 uh because
  • 00:37:26
    because it falls in these four climate
  • 00:37:30
    zones that we were using uh in our uh
  • 00:37:36
    evaluation of the impact of trees on
  • 00:37:39
    increasing temperatures so we uh looked
  • 00:37:43
    at their proposed list uh uh to see if
  • 00:37:48
    there were any trees we felt should be
  • 00:37:51
    eliminated based on uh the the
  • 00:37:54
    temperature change based on high
  • 00:37:56
    irrigation requirements that were not
  • 00:37:58
    listed in Perry's landscape plants for
  • 00:38:01
    California Gardens and also we utilize
  • 00:38:05
    the natural distribution of some of the
  • 00:38:08
    species and so this is the list of trees
  • 00:38:12
    that we recommended for removal it's
  • 00:38:15
    actually a a somewhat long list and best
  • 00:38:18
    summarized I think uh in this slide so
  • 00:38:23
    that uh we did not recommend that hack
  • 00:38:27
    be used in Sunset climate zone number
  • 00:38:29
    four and you can see there are three
  • 00:38:32
    other trees species
  • 00:38:35
    that were not recommended because of
  • 00:38:39
    their lack of tolerance to the
  • 00:38:40
    increasing temperatures in this specific
  • 00:38:43
    climate zone doesn't mean that we're
  • 00:38:46
    suggesting Coast live off Oak come off
  • 00:38:49
    the list in other climate zones it's
  • 00:38:52
    well adapted to those climate zones uh
  • 00:38:56
    the these species here are uh
  • 00:38:59
    recommended for removal because of
  • 00:39:01
    increasing temperature and their
  • 00:39:03
    irrigation requirements uh three species
  • 00:39:07
    were considered for elimination in
  • 00:39:09
    specific climate zones because of their
  • 00:39:11
    natural distribution and we had one
  • 00:39:15
    species that uh was not recommended for
  • 00:39:18
    the climate zones they were proposed for
  • 00:39:21
    uh by Perry in his book uh uh based on
  • 00:39:26
    trees for California Gardens uh here are
  • 00:39:29
    some links uh to the um various sources
  • 00:39:34
    that I have been referring to in this uh
  • 00:39:39
    presentation uh and uh I will be happy
  • 00:39:42
    to respond to any questions at the end
  • 00:39:44
    of the the uh meeting this
  • 00:39:47
    morning so I'd like to turn this over
  • 00:39:50
    now to Jim great that looks awesome okay
  • 00:39:54
    you can go ahead and go to the next
  • 00:39:55
    slide
  • 00:39:58
    so one thing that I want to make
  • 00:39:59
    everybody aware of is that there is an
  • 00:40:02
    ever expanding Suite of tools located at
  • 00:40:06
    this website so this is the urban forest
  • 00:40:08
    ecosystem Institute a website for urban
  • 00:40:10
    forestry tools that is housed at CPO in
  • 00:40:14
    San Louis abiso and really regardless of
  • 00:40:17
    where you are from uh I think you'll
  • 00:40:19
    find many of the resources on this
  • 00:40:21
    website useful go ahead and next slide
  • 00:40:25
    I'll just highlight a couple the
  • 00:40:27
    California big tree registry next slide
  • 00:40:30
    is on the site and this is where every
  • 00:40:33
    individual that is the largest of its
  • 00:40:35
    species is held on this database and you
  • 00:40:38
    can nominate trees from here and there
  • 00:40:40
    is a map of where all the champion trees
  • 00:40:42
    are in California next
  • 00:40:46
    slide uh We've also amassed the largest
  • 00:40:49
    urban Forest inventory on this site
  • 00:40:51
    which is at at this point in time is
  • 00:40:54
    just for California so next slide
  • 00:40:57
    on this link you can see all 7 million
  • 00:41:01
    data points that have been aggregated
  • 00:41:03
    from many data Partners around the state
  • 00:41:07
    and so um this is our most comprehensive
  • 00:41:09
    look at California's Urban Forest so far
  • 00:41:12
    and um what we see is that over 500
  • 00:41:15
    species make up common trees of our
  • 00:41:18
    Urban Forest next
  • 00:41:21
    slide this um this site has the ability
  • 00:41:24
    to filter it based on if you care about
  • 00:41:26
    a certain species or you want to know
  • 00:41:28
    information about a current climate zone
  • 00:41:31
    and so for example I could filter for
  • 00:41:33
    San Diego which I've done here and then
  • 00:41:35
    it will display all the information we
  • 00:41:37
    have about inventory trees in San Diego
  • 00:41:39
    so here are the most common species in
  • 00:41:42
    San Diego the top two are palms and then
  • 00:41:44
    it gives you a bunch of other metrics
  • 00:41:46
    about the urban forest in that place
  • 00:41:49
    next
  • 00:41:51
    slide and another project that we've
  • 00:41:53
    been working on is What's called the
  • 00:41:55
    Urban Tree detector because generally
  • 00:41:57
    inventory trees only represent public
  • 00:42:00
    trees not the private trees in the urban
  • 00:42:02
    forest and so next slide so in a large
  • 00:42:05
    collaboration with computer scientists
  • 00:42:07
    we've been using imagery to try to
  • 00:42:09
    detect all of the trees in an urban
  • 00:42:11
    Forest so what you can see here on the
  • 00:42:13
    left is the blue points are the
  • 00:42:15
    inventory trees and um and clearly it's
  • 00:42:18
    missing a lot of the urban forest and so
  • 00:42:20
    the red points are all the trees that
  • 00:42:22
    are still part of the urban forest and
  • 00:42:24
    contributing to the urban canopy
  • 00:42:26
    but aren't uh in the public right of way
  • 00:42:30
    next
  • 00:42:30
    slide and from that data we've been able
  • 00:42:33
    to run this over imagery across all
  • 00:42:35
    cities in California we've discovered
  • 00:42:37
    that there's 43 million Urban trees in
  • 00:42:39
    California which is about 08 trees per
  • 00:42:42
    person in the state okay next
  • 00:42:45
    slide so that's just to highlight some
  • 00:42:48
    other things that are there kind of
  • 00:42:49
    unrelated to what we're talking about
  • 00:42:51
    today but what is related to schoolyard
  • 00:42:54
    trees is the select tree database base
  • 00:42:56
    so next
  • 00:42:58
    slide so select tree what this is is a
  • 00:43:00
    database of trees and their
  • 00:43:02
    characteristic it includes all Urban
  • 00:43:05
    trees um so even though it started
  • 00:43:08
    California specific it has now expanded
  • 00:43:10
    throughout all of the um Pacific Islands
  • 00:43:13
    and it also includes all the common
  • 00:43:15
    Urban trees across all of North America
  • 00:43:18
    um so in this database then we have the
  • 00:43:21
    ability to um search a bunch of
  • 00:43:24
    different characters and see the that
  • 00:43:26
    match your search criteria next
  • 00:43:29
    slide so some of the things that you can
  • 00:43:31
    search on are the tree height the flower
  • 00:43:34
    color the site conditions the water use
  • 00:43:37
    um all kinds of things but most recently
  • 00:43:40
    in our collaboration with the schoolyard
  • 00:43:43
    planting projects funded by calfire in
  • 00:43:45
    California and also green schoolyards
  • 00:43:47
    America we've been working on
  • 00:43:48
    development of this site so that it
  • 00:43:50
    serves schoolyard plantings more so what
  • 00:43:53
    we've added is the ability to take the
  • 00:43:55
    list that Aaron and Joe were just
  • 00:43:57
    talking about and serve that up on
  • 00:43:59
    select tree so you now have the ability
  • 00:44:01
    to select schoolyard tree as one of your
  • 00:44:04
    search criteria next
  • 00:44:07
    slide and so when you click schoolyard
  • 00:44:10
    tree um it will give you the whole list
  • 00:44:12
    that's been developed by this team uh
  • 00:44:15
    but you can also add schoolyard tree or
  • 00:44:17
    any other criteria that you care about
  • 00:44:19
    next
  • 00:44:20
    slide and when you do that you'll see
  • 00:44:23
    that beautiful PDF that Aaron showed but
  • 00:44:25
    you'll just see it in different format
  • 00:44:26
    which is with little icons of their
  • 00:44:28
    trees next
  • 00:44:31
    slide and for any of those trees oh yes
  • 00:44:34
    you can search any combination um that
  • 00:44:36
    includes schoolyard trees go ahead next
  • 00:44:38
    slide so maybe you want a schard tree
  • 00:44:39
    that also has red flowers you could do
  • 00:44:41
    that so then when you click on any given
  • 00:44:44
    species it takes you to the species
  • 00:44:47
    information page and so um this is a
  • 00:44:49
    really well curated site of accurate
  • 00:44:52
    photos of that species and then a whole
  • 00:44:54
    bunch of information about
  • 00:44:56
    the tree characteristics consider
  • 00:44:59
    considerations when planting it and
  • 00:45:00
    where it does well next
  • 00:45:03
    slide um and then the thing that we're
  • 00:45:06
    working on right now is the development
  • 00:45:08
    of the text for specifically schoolyard
  • 00:45:11
    use so coming soon in the near future
  • 00:45:13
    for each of those tree um schoolyard
  • 00:45:15
    trees you'll have the ability um we'll
  • 00:45:17
    have added text here that says like the
  • 00:45:19
    Bark for this tree is great to to peel
  • 00:45:21
    off or this one students can eat or this
  • 00:45:23
    one you should not eat that sort of
  • 00:45:25
    stuff will we found on the general info
  • 00:45:27
    page for each of these species next
  • 00:45:31
    slide and then another new feature that
  • 00:45:35
    we have on the site is that now users
  • 00:45:37
    can um search tree lists and you can get
  • 00:45:40
    to it from the main yui page or within
  • 00:45:42
    select Tre you can say search tree list
  • 00:45:44
    so if you click on tree list go ahead
  • 00:45:46
    next
  • 00:45:51
    slide you will get a
  • 00:45:54
    um a list of trees and this is an
  • 00:45:58
    example of the list that we've been
  • 00:45:59
    talking about today so the schoolyard
  • 00:46:02
    forest for
  • 00:46:03
    California and um and what's great about
  • 00:46:06
    these tree lists is that it's a static
  • 00:46:09
    URL that you can share with people or
  • 00:46:11
    post on your websites that bring them to
  • 00:46:13
    the list of trees you can download the
  • 00:46:15
    list yourself you can follow the list
  • 00:46:17
    with that little heart button so that it
  • 00:46:18
    shows up in your um user account and
  • 00:46:21
    then every list also has a series of
  • 00:46:24
    tags associated with it and those tags
  • 00:46:26
    are all searchable next
  • 00:46:30
    slide so for example I could click on
  • 00:46:33
    the publicly available tree list and I
  • 00:46:34
    can search for every tree list that is
  • 00:46:36
    related to the word school and so any
  • 00:46:38
    list that has that would come up here if
  • 00:46:40
    you um worked for a consulting firm or a
  • 00:46:43
    district you could tag it with your
  • 00:46:45
    District name or your firm name go ahead
  • 00:46:47
    next
  • 00:46:51
    slide and um so those are the public
  • 00:46:53
    facing lists but how do you make a list
  • 00:46:55
    well we now have the ability within
  • 00:46:56
    select Tre to create a user account and
  • 00:47:00
    once you create a user account then you
  • 00:47:02
    can create your own list and you have
  • 00:47:04
    the ability to make those lists public
  • 00:47:05
    or private you can have sort of a
  • 00:47:08
    dynamic list that's based on a search
  • 00:47:10
    characteristic that you're interested in
  • 00:47:12
    which is a save search you name it
  • 00:47:14
    whatever you want your own description
  • 00:47:16
    you can tag it with what kind of list it
  • 00:47:17
    is in this case it's School list which
  • 00:47:20
    region it applies to and then any
  • 00:47:22
    keywords that you want go ahead next
  • 00:47:24
    slide
  • 00:47:26
    and then you can go about just adding
  • 00:47:28
    trees um from throughout select tree to
  • 00:47:31
    your list and the other thing you have
  • 00:47:33
    the ability to do is to then add
  • 00:47:35
    collaborators to that list so if you're
  • 00:47:37
    working within an organization and a
  • 00:47:39
    bunch of people want the ability to edit
  • 00:47:41
    that list they can go ahead next
  • 00:47:45
    slide and so then if you go to to your
  • 00:47:48
    user account and your list page you'll
  • 00:47:50
    see all the lists that you are following
  • 00:47:51
    with the hearts or all the lists that
  • 00:47:53
    you're the owner of with the trash can
  • 00:47:55
    and you can edit and create new lists
  • 00:47:56
    and filter your list that way next
  • 00:48:00
    slide and so I will say that this
  • 00:48:02
    project is under active development
  • 00:48:04
    we've been frantically working on it um
  • 00:48:06
    full-time for the last several months to
  • 00:48:08
    try to get it up and running before a
  • 00:48:09
    lot of the schoolyard planting projects
  • 00:48:11
    in California start in the coming months
  • 00:48:14
    you'll see links on the page to tree
  • 00:48:16
    curriculum and if anybody knows of any
  • 00:48:18
    good sites that we should be linking to
  • 00:48:20
    please let me know you'll soon have the
  • 00:48:22
    ability to search um from your zip code
  • 00:48:25
    and also um to search for climate
  • 00:48:27
    adapted trees from your ZIP code so if
  • 00:48:30
    you run into any IT issues while you're
  • 00:48:31
    working on this please email me because
  • 00:48:33
    um we do have a team of developers who
  • 00:48:36
    we we like Ping and they fix stuff right
  • 00:48:38
    away so Aaron that user account problem
  • 00:48:40
    should be fixed right now uh next
  • 00:48:43
    slide so that's just an overview of some
  • 00:48:46
    of the tools on the site and how we're
  • 00:48:48
    trying to support schoolyard planting
  • 00:48:51
    projects and um so if you haven't been
  • 00:48:53
    here before please visit the site and
  • 00:48:56
    thank you very much green schoolyards um
  • 00:48:59
    for having me and if you go to the next
  • 00:49:02
    slide I'll just say thank you and it
  • 00:49:04
    looks like we'll have a little bit of
  • 00:49:05
    time for questions great thank you so
  • 00:49:07
    much Jen Aaron and Joe for um all that
  • 00:49:11
    great information today I know we're
  • 00:49:13
    running a little short on time if you're
  • 00:49:16
    still with us please look in the chat um
  • 00:49:19
    many of the questions are being answered
  • 00:49:21
    by our staff and by the speakers but to
  • 00:49:24
    address um um some of them that um I
  • 00:49:28
    know came up in the chat I know um
  • 00:49:31
    someone was asking about are there
  • 00:49:34
    resources for folks outside of
  • 00:49:37
    California and I would love to offer
  • 00:49:40
    that question to our speakers just to
  • 00:49:42
    address broadly what are some resources
  • 00:49:45
    people in other states can look to for
  • 00:49:47
    advice well I guess I will say that um
  • 00:49:51
    select tree does include trees from all
  • 00:49:53
    over the country so that part is is
  • 00:49:56
    useful and then it does include USDA
  • 00:49:58
    hardiness zones so it that search
  • 00:50:01
    criteria will apply broadly um but I
  • 00:50:04
    don't know about the climate analysis
  • 00:50:06
    and it looks like um somebody posted a
  • 00:50:08
    study in the chat that um yeah Richard
  • 00:50:12
    Hal from the US Forest Service is
  • 00:50:14
    working on climate adaptation for the
  • 00:50:16
    the East Coast so if you didn't see that
  • 00:50:18
    link in there it's in the chat um I know
  • 00:50:22
    um Joe had mentioned also um just
  • 00:50:24
    general advice uh for colder
  • 00:50:27
    climates um just in in our speaking and
  • 00:50:31
    I know some people might be curious
  • 00:50:32
    about that as we interent cooler months
  • 00:50:35
    I'm sorry was that a question
  • 00:50:37
    directly yes that's a question from me
  • 00:50:40
    to you Joe um about folks that live in
  • 00:50:42
    colder climates if you have any um
  • 00:50:45
    advice to
  • 00:50:46
    them well uh the you know the
  • 00:50:51
    distribution limit of of most Tre
  • 00:50:54
    species is set by lower winter climates
  • 00:50:58
    uh and so we have the US Department of
  • 00:51:01
    Agriculture uh Frost hardiness zone map
  • 00:51:04
    that's throughout as uh Jen mentioned
  • 00:51:08
    the United States that would be one
  • 00:51:10
    source of
  • 00:51:11
    information uh recently they have
  • 00:51:14
    updated that map uh and basically this
  • 00:51:18
    update uh shows the impact of climate
  • 00:51:23
    change on uh the warming of winter
  • 00:51:27
    temperatures and so uh I don't think it
  • 00:51:30
    will have any negative impact on the uh
  • 00:51:34
    list uh that bay leaf uh uh design has
  • 00:51:38
    prepared because uh it's getting warmer
  • 00:51:41
    not
  • 00:51:42
    colder in California in the wintertime
  • 00:51:45
    it might expand a few species but at
  • 00:51:49
    this point I think a more detailed
  • 00:51:51
    analysis might be required to really see
  • 00:51:55
    how significant this new map is going to
  • 00:51:58
    be for this selection of trees in
  • 00:52:04
    California um someone also noted in the
  • 00:52:07
    chat that you can also look to your
  • 00:52:09
    University or state Cooperative um
  • 00:52:12
    extension um they may have um additional
  • 00:52:14
    information on Native or climate
  • 00:52:16
    appropriate
  • 00:52:18
    options um I see that someone has their
  • 00:52:21
    hand raised and if I could ask you to
  • 00:52:23
    put put the question in the chat I know
  • 00:52:25
    that I know that's hard um so that uh
  • 00:52:28
    folks can can we can address it
  • 00:52:31
    later um one question that someone put
  • 00:52:34
    in the chat that I would like to
  • 00:52:36
    verbally um address um has to do with
  • 00:52:40
    climbing risk and
  • 00:52:41
    trees um so I know we're we're short on
  • 00:52:45
    time but I would just like to say that
  • 00:52:49
    uh many schools have monkey bars and
  • 00:52:52
    things like this um and I'm resp
  • 00:52:55
    responding to um information given to me
  • 00:52:58
    by one of our Green School yards America
  • 00:53:01
    staff um and so philosophically kids
  • 00:53:03
    should be able to climb trees um rather
  • 00:53:05
    than monkey bars if located in a forest
  • 00:53:07
    that has the right um attenuation
  • 00:53:11
    surfaces um but we do understand that
  • 00:53:13
    that is a concern for a lot of people
  • 00:53:15
    and um that can be managed with setting
  • 00:53:18
    you know behavioral expectations of what
  • 00:53:20
    kids should and shouldn't be doing in a
  • 00:53:22
    particular schoolyard Forest Area as
  • 00:53:25
    well as um training trains by early
  • 00:53:27
    pruning um to not have branches that are
  • 00:53:30
    low enough to
  • 00:53:32
    climb um and then lastly I see that
  • 00:53:37
    there are a lot of questions for
  • 00:53:42
    um is is this just for California and
  • 00:53:45
    there are a lot of resources in your own
  • 00:53:47
    state that are similar um but this is
  • 00:53:50
    great that we see a lot of interest from
  • 00:53:52
    outside of California so um we'll do our
  • 00:53:55
    best to address some of the questions
  • 00:53:57
    that are
  • 00:53:58
    unanswered uh I know we're at time um I
  • 00:54:02
    want to thank our speakers Joe Aaron and
  • 00:54:06
    Jen um we have a lot of information on
  • 00:54:09
    our website um they have their
  • 00:54:13
    information that they shared and we also
  • 00:54:15
    want to invite everyone here to join us
  • 00:54:18
    again in February of 2024 where we'll
  • 00:54:22
    continue this series and the meantime we
  • 00:54:25
    do have an info@ email for green schard
  • 00:54:28
    so if you do have questions please feel
  • 00:54:30
    free to reach out to us thank you again
  • 00:54:33
    Joe Aaron and
  • 00:54:34
    Jen
Tags
  • forêts scolaires
  • changement climatique
  • sélection d'arbres
  • écosystème
  • éducation
  • ressources en ligne
  • entretien des arbres
  • bénéfices pour les élèves
  • canopée d'arbres
  • design scolaire