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Dissertation Research: Forest Regeneration in Agricultural Windbreaks: Effects of Connectivity and Remnant Trees

Dissertation Research: Forest Regeneration in Agricultural Windbreaks: Effects of Connectivity and Remnant Trees
论文研究:农业防风林的森林再生:连通性和残存树木的影响
批准号:
9700906
负责人:
Todd Dawson
金额:
$0.0万
依托单位:
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
1997
资助国家:
美国
项目状态:
已结题
起止时间:
1997-07-15 至 1998-12-31

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中文摘要
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英文摘要
9700906 Dawson The goal of this research is to characterize the dynamics of windbreak colonization by tropical forest trees and to examine how the positioning of windbreaks within the landscape influences the colonization process. In particular, the effects of windbreak connectivity and remnant trees within the windbreaks will be evaluated. Preliminary research indicates that windbreak connectivity and remnant trees increase the abundance and richness of forest trees in windbreaks. It is hypothesized that these factors enhance forest regeneration by increasing seed dispersal into the windbreaks. To understand the dynamics of forest regeneration, a combination of vegetation surveys, seed trapping, soil seed bank studies, and seed predation trials will be conducted in windbreaks and pastures in Monteverde, Costa Rica. The seed rain entering different windbreak types (connected, non-connected, and with remnant trees) and pastures will be characterized for a one-year period using seed traps. The soil seed banks of windbreaks and pastures will be assessed using the seedling emergence technique. Seed predation in windbreaks and pastures will be evaluated through seed removal experiments. This research will enhance our understanding of the dynamics of forest regeneration in agroecosystems and also provide useful information for reforestation and conservation programs in the tropics.
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Collaborative Research: RUI: Will climate change lead to system shifts on tropical mountains?: the interplay of epiphyte losses on host tree function, microclimate, and hydrology
  • 批准号:
    2130112
  • 项目类别:
    Standard Grant
  • 资助金额:
    $36.91万
  • 财政年份:
    2021
  • 负责人:
    Todd Dawson
  • 依托单位:
Collaborative Research: Dry in the sky? Ecophysiological Strategies and Drought Tolerance among Tropical Montane Cloud Forest Canopy Epiphytes
  • 批准号:
    1557333
  • 项目类别:
    Standard Grant
  • 资助金额:
    $9.32万
  • 财政年份:
    2016
  • 负责人:
    Todd Dawson
  • 依托单位:
RAPID: The Endless Summer: Implications of a 100-year drought for the functional biology of native Californian plants and ecosystems
  • 批准号:
    1441396
  • 项目类别:
    Standard Grant
  • 资助金额:
    $18.04万
  • 财政年份:
    2014
  • 负责人:
    Todd Dawson
  • 依托单位:
Collaborative Research: Late Holocene Climate Variability From Stable Isotope Ratio Analysis of Coast Redwood Tree Ring Cellulose
  • 批准号:
    1003601
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $33.1万
  • 财政年份:
    2010
  • 负责人:
    Todd Dawson
  • 依托单位:
国内基金
海外基金
Research on Quantum Field Theory without a Lagrangian Description
  • 批准号:
    24ZR1403900
  • 项目类别:
    省市级项目
  • 资助金额:
    --
  • 批准年份:
    2024
  • 负责人:
    SATOSHI NAWATA
  • 依托单位:
Cell Research
Cell Research
Cell Research (细胞研究)