Establishing a Transect

00:06:00
https://www.youtube.com/watch?v=MclghnP0H94

Sintesi

TLDRO método descrito no vídeo consiste en establecer transectos para recoller datos de vexetación e solo. Comeza definindo un punto cero, desde onde Michelle camiña ao longo do transecto indicado, evitando pisalo e axustando a cinta de medición ben tensa no chan. Nas áreas con vexetación leñosa, a medición realízase mediante pasos, deixando a cinta ben orientada e axustada a terra. Este método garante a recollida precisa de datos sen danar a área de estudo.

Punti di forza

  • 📏 Establecer transectos permite a recollida de datos precisos de vexetación e solo.
  • 🧭 O primeiro paso inclúe identificar un punto cero con orientación específica.
  • 🚶‍♀️ A persoa que establece o transecto debe manter unha posición correcta para evitar pisalo.
  • 🔄 Michelle axusta a orientación ao chegar ao final de cada tramo.
  • 🔗 As cintas son fixadas firmemente ao chan para garantir medicións precisas.
  • 🌳 En áreas leñosas, empréganse metodoloxías alternativas para manter a exactitude.
  • 📐 Os pasos son fundamentais para manter a lonxitude do transecto.
  • 📌 A cinta de medición debe estar axustada e sen interferencias de vexetación.
  • 🪢 Realízase unha correcta alineación do transecto seguindo a orientación indicada.
  • 🎯 O uso de estacas axuda a manter a cinta no lugar axeitado durante toda a medición.

Linea temporale

  • 00:00:00 - 00:06:00

    Establecemento de transectos para a recolección de datos de vexetación e solo: Inicialmente identifícase o punto cero, a 330 grados desde o centro do terreo. Michelle camiña ata o punto inicial e desenrola a cinta en dirección indicada, manténdose á dereita para non pisar o transecto. Unha vez no final, tense a cinta e fíxase ao chan. Noutros casos, Michelle usa unha pica e fai o percorrido a pasos, colocando a cinta ao longo do terreo, evitando vexetación ou disturbios no solo.

Mappa mentale

Mind Map

Domande frequenti

  • Que é un transecto?

    Un transecto é unha liña no chan ao longo da cal se establecen puntos de mostraxe para recoller datos de vexetación e solo.

  • Cal é o primeiro paso para establecer transectos?

    O primeiro paso é atopar o punto cero, por exemplo, a 330 graos desde o centro da parcela.

  • Como se asegura de que non se camiña sobre o transecto?

    A persoa que establece o transecto mantén o brazo esquerdo estendido cara á dereita do transecto.

  • Que fai Michelle cando chega ao final do transecto?

    Michelle dáse a volta, enfróntase a quen a dirixe e alinha a orientación correcta.

  • Que método alternativo hai en áreas con vexetación leñosa?

    Utilizan outra técnica onde unha persoa mide o transecto usando pasos e mantén unha alineación adecuada coa axuda dunha brúxula.

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Sottotitoli
en
Scorrimento automatico:
  • 00:00:37
    The method that I'm going to describe now is establishing transects.
  • 00:00:40
    The transect is a line on the ground along which sample points are established
  • 00:00:44
    for collecting vegetation and soil data. The first step to establishing transects
  • 00:00:49
    is to find is the zero point—in this case 330 degrees out from the center of the plot.
  • 00:00:55
    Michelle will walk out to the starting point.
  • 00:00:58
    After she reaches the start of the transect she'll roll the tape back up.
  • 00:01:12
    And she's going to plant the zero end of the transect at the start
  • 00:01:18
    and start walking out in the direction that I tell her.
  • 00:01:22
    While I'm keeping a sight on her direction, she's staying to the right the transect, left arm outstretched,
  • 00:01:28
    so that she doesn't walk on the transect itself.
  • 00:01:33
    Michelle reaches the end of the transect.
  • 00:01:35
    She'll turn around, face me, and I'll direct her into the
  • 00:01:39
    correct orientation. A little to your left, Michelle.
  • 00:01:42
    Looks good. She's pulling the tape is tightly she can
  • 00:01:47
    and at the same time staking it firmly to the ground.
  • 00:01:54
    Looks good.
  • 00:01:56
    After finishing setting the end of the transect, Michelle will
  • 00:02:00
    come back to the center the plot, staying well to the right of the transect.
  • 00:02:13
    In areas where woody vegetation makes pulling transects difficult,
  • 00:02:16
    we have another method for pulling out transects. I'm sending Michelle
  • 00:02:20
    to the start of the transect again, lining her up with the compass.
  • 00:02:28
    She's gonna put the stake in the ground,
  • 00:02:30
    roll up the tape, and then she's going to pace out to the end to the transect—
  • 00:02:35
    the approximate number paces it'll take to get there—
  • 00:02:38
    staying well right of the transect while she does so. As Michelle approaches the
  • 00:02:43
    end of the line I'll line her up.
  • 00:02:52
    It looks good. Michelle will place the tape on the ground
  • 00:02:55
    stake it to the ground through the handle with the reel side up
  • 00:02:59
    then attach the end of the tape to the PVC pipe
  • 00:03:03
    using a ring clip. Then she'll proceed walking towards zero end of the transect
  • 00:03:11
    with my guidance. As Michelle approaches the mesquite shrub she's gonna keep the
  • 00:03:15
    PVC pipe low to the ground,
  • 00:03:17
    keeping it underneath any of the woody vegetation
  • 00:03:20
    —at the same time avoiding any litter
  • 00:03:24
    or digging up any soil—and she's gonna walk around the shrub
  • 00:03:27
    and pull the pipe through from the other side. The whole time I'm keeping her
  • 00:03:33
    in line with the direction of the transect. michelle's gonna make her way
  • 00:03:38
    down to the zero end of the transect
  • 00:03:40
    using the pin as the guide, unhook the tape
  • 00:03:45
    from the PVC pipe then attach
  • 00:03:50
    the tape to the ground with the stake. And then she's gonna walk back out to the
  • 00:03:55
    end of the transect, staying well to the right
  • 00:03:57
    of the transect and tension the tape. When Michelle reaches the end of the line
  • 00:04:05
    she's gonna pull the stake out, pull the tape tight, keeping it low to the ground,
  • 00:04:10
    locking the handle down, an restaking it to the ground.
Tag
  • transectos
  • mostraxe
  • vexetación
  • solo
  • medición
  • metodoloxía
  • campo
  • cinta de medición
  • orientación
  • procesos