Collaborative Research: WCR: Is Deforestation Changing the Hydrologic Climate and Vegetation Dynamics of the Amazon?

合作研究:WCR:森林砍伐是否正在改变亚马逊的水文气候和植被动态?

基本信息

  • 批准号:
    0450268
  • 负责人:
  • 金额:
    $ 9.45万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2005
  • 资助国家:
    美国
  • 起止时间:
    2005-03-01 至 2009-02-28
  • 项目状态:
    已结题

项目摘要

In this collaborative work, the PIs will test the hypothesis that the long-term hydrologic climate of Amazonia is changing as a result of deforestation. A regional coupled atmosphere-biosphere-hydrosphere model will be developed. The model's formulation addresses important limitations in earlier studies of Amazonian deforestation by (i) simulating observed patterns of land-cover change, (ii) simulating the long-term (decadal-to-century scale) consequences of the interaction between the vegetation, atmosphere and land-surface hydrology, (iii) incorporating forest edge effects (sub-grid scale variability in vegetation dynamics associated with forest pasture-interfaces), and (iv) running at spatial resolutions high enough to simulate explicitly mesoscale variability in important hydrologic climate processes such as cloud formation that are caused by fine scale patterns of deforestation. The following three sub-hypotheses will be evaluated:Hypothesis 1: Observed patterns of deforestation are changing the long-term hydrologic climate of Amazonia.Hypothesis 2: The changing hydrologic climate is changing both short (hourly-seasonal-yearly) and long-term (yearly-decadal) vegetation dynamics across the region.Hypothesis 3: Changes in the land surface arising from the changing hydrologic climate are, in turn, shifting the climate and hydrologic cycle towards a more arid state.The constrained model will then be used to predict the future state of the hydrologic climate and vegetation of the region.The results from this study will be disseminated through webpages and links to existing Amazon research programs. It is planned to prepare an outreach program for high schools in Boston. Graduate and undergraduate students will be involved in the research.
在这项合作工作中,PI将测试亚马逊河流域的长期水文气候因森林砍伐而发生变化的假设。将建立一个区域大气-生物圈-水圈耦合模型。该模型的公式解决了早期亚马逊森林砍伐研究中的重要局限性,方法是(i)模拟观察到的土地覆盖变化模式,(ii)模拟长期森林覆盖变化模式,(iii)模拟长期森林覆盖变化模式,(iv)模拟长期森林覆盖变化模式。(十年至世纪尺度)植被、大气和地表水文学之间相互作用的后果,㈢纳入森林边缘效应(与森林牧场界面有关的植被动态的次网格尺度变化),和(四)运行在足够高的空间分辨率,以明确模拟重要的水文气候过程中的中尺度变化,都是由精细的森林砍伐模式造成的将评估以下三个子假设:假设1:观测到的森林砍伐模式正在改变亚马逊河流域的长期水文气候。(每小时-季节-每年)和长期假设3:水文气候变化引起的地表变化反过来又是,将气候和水文循环转向更干旱的状态。然后,将使用受约束的模型来预测未来的水文气候和植被状况。这项研究的结果将通过网页和现有亚马逊研究方案的链接传播。计划为波士顿的高中准备一个推广方案。研究生和本科生将参与这项研究。

项目成果

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Roni Avissar其他文献

Exploring the Effects of Microscale Structural Heterogeneity of Forest Canopies Using Large-Eddy Simulations
  • DOI:
    10.1007/s10546-009-9404-4
  • 发表时间:
    2009-06-30
  • 期刊:
  • 影响因子:
    2.200
  • 作者:
    Gil Bohrer;Gabriel G. Katul;Robert L. Walko;Roni Avissar
  • 通讯作者:
    Roni Avissar
A statistical-dynamical approach to parameterize subgrid-scale land-surface heterogeneity in climate models
  • DOI:
    10.1007/bf01903417
  • 发表时间:
    1991-03-01
  • 期刊:
  • 影响因子:
    7.100
  • 作者:
    Roni Avissar
  • 通讯作者:
    Roni Avissar

Roni Avissar的其他文献

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{{ truncateString('Roni Avissar', 18)}}的其他基金

Regional and Global Impacts of Tropical Deforestation Under Increasing CO2 Concentrations on Mutliscale Eco-Hydro-Climatological Processes
二氧化碳浓度增加下热带森林砍伐对多尺度生态水文气候过程的区域和全球影响
  • 批准号:
    0902197
  • 财政年份:
    2009
  • 资助金额:
    $ 9.45万
  • 项目类别:
    Continuing Grant
The Helicopter Observation Platform (HOP): Demonstration and Calibration Phase
直升机观测平台 (HOP):演示和校准阶段
  • 批准号:
    0623182
  • 财政年份:
    2007
  • 资助金额:
    $ 9.45万
  • 项目类别:
    Standard Grant
The Impacts of Tropical Deforestation on Regional and Global Hydroclimate
热带森林砍伐对区域和全球水文气候的影响
  • 批准号:
    0634745
  • 财政年份:
    2006
  • 资助金额:
    $ 9.45万
  • 项目类别:
    Standard Grant
Collaborative Research: Seed Dispersal by Wind and Plant Recruitment in Tropical Forests; An Interdisciplinary Investigation Across Multiple Scales
合作研究:热带森林中的风力种子传播和植物招募;
  • 批准号:
    0453296
  • 财政年份:
    2005
  • 资助金额:
    $ 9.45万
  • 项目类别:
    Standard Grant
The Impacts of Tropical Deforestation on Regional and Global Hydroclimate
热带森林砍伐对区域和全球水文气候的影响
  • 批准号:
    0346554
  • 财政年份:
    2004
  • 资助金额:
    $ 9.45万
  • 项目类别:
    Standard Grant
Collaborative Research: Long Distance Dispersal of Tree Seeds by Wind: Underlying Mechanisms, Mathematical Prediction and Field Quantification
合作研究:树木种子风的长距离传播:潜在机制、数学预测和现场量化
  • 批准号:
    0296146
  • 财政年份:
    2001
  • 资助金额:
    $ 9.45万
  • 项目类别:
    Continuing Grant
Collaborative Research: Long Distance Dispersal of Tree Seeds by Wind: Underlying Mechanisms, Mathematical Prediction and Field Quantification
合作研究:树木种子风的长距离传播:潜在机制、数学预测和现场量化
  • 批准号:
    9981649
  • 财政年份:
    2000
  • 资助金额:
    $ 9.45万
  • 项目类别:
    Continuing Grant
Sixth International Conference on Precipitation: Predictability of Rainfall at the Various Scales
第六届国际降水会议:不同尺度降雨的可预测性
  • 批准号:
    9710246
  • 财政年份:
    1998
  • 资助金额:
    $ 9.45万
  • 项目类别:
    Standard Grant
Bidirectional Ecosystem-Atmosphere Interactions Workshop: National Space Research Institute, Sao Jose dos Campos, Brazil; July 8-11, 1996
双向生态系统-大气相互作用研讨会:国家空间研究所,巴西圣若泽杜斯坎普斯;
  • 批准号:
    9634021
  • 财政年份:
    1996
  • 资助金额:
    $ 9.45万
  • 项目类别:
    Standard Grant
The Impact of Spatial and Temporal Variability of the Landscape on Atmosphere-Land Surface Interactions at the Mesoscale
地貌时空变化对中尺度大气-地表相互作用的影响
  • 批准号:
    9415441
  • 财政年份:
    1995
  • 资助金额:
    $ 9.45万
  • 项目类别:
    Continuing Grant

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相似海外基金

Collaborative Research: WCR: Is Deforestation Changing the Hydrologic Climate and Vegetation Dynamics of the Amazon?
合作研究:WCR:森林砍伐是否正在改变亚马逊的水文气候和植被动态?
  • 批准号:
    0450307
  • 财政年份:
    2005
  • 资助金额:
    $ 9.45万
  • 项目类别:
    Standard Grant
Collaborative Research: WCR: Is Deforestation Changing the Hydrologic Climate and Vegetation Dynamics of the Amazon?
合作研究:WCR:森林砍伐是否正在改变亚马逊的水文气候和植被动态?
  • 批准号:
    0449793
  • 财政年份:
    2005
  • 资助金额:
    $ 9.45万
  • 项目类别:
    Standard Grant
Collaborative Research: WCR: Hydrology of Central and Southwest Asia: Connections Between Regional Atmospheric Circulation and Large-scale Climate Variability
合作研究:WCR:中亚和西南亚水文学:区域大气环流与大范围气候变率之间的联系
  • 批准号:
    0603555
  • 财政年份:
    2005
  • 资助金额:
    $ 9.45万
  • 项目类别:
    Standard Grant
Collaborative Research: WCR: Incorporation of Model Bias and Uncertainty in Land Surface Hydrologic Flux Prediction Using a Data Assimilation Network
合作研究:WCR:使用数据同化网络将模型偏差和不确定性纳入陆地表面水文通量预测
  • 批准号:
    0333154
  • 财政年份:
    2003
  • 资助金额:
    $ 9.45万
  • 项目类别:
    Standard Grant
Collaborative Research: WCR: Ecohydrology of semiarid woodlands: Role of woody plants in the water cycle
合作研究:WCR:半干旱林地的生态水文学:木本植物在水循环中的作用
  • 批准号:
    0233584
  • 财政年份:
    2003
  • 资助金额:
    $ 9.45万
  • 项目类别:
    Standard Grant
Collaborative Research: WCR: Hydrology of Central and Southwest Asia: Connections Between Regional Atmospheric Circulation and Large-scale Climate Variability
合作研究:WCR:中亚和西南亚水文学:区域大气环流与大范围气候变率之间的联系
  • 批准号:
    0233576
  • 财政年份:
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  • 资助金额:
    $ 9.45万
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Collaborative Research: WCR: Incorporation of Model Bias and Uncertainty in Land Surface Hydrologic Flux Prediction Using a Data Assimilation Framework
合作研究:WCR:使用数据同化框架将模型偏差和不确定性纳入陆地表面水文通量预测
  • 批准号:
    0333133
  • 财政年份:
    2003
  • 资助金额:
    $ 9.45万
  • 项目类别:
    Standard Grant
Collaborative Research: WCR: Hydrology of Central and Southwest Asia: Connections Between Regional Atmospheric Circulation and Large-scale Climate Variability
合作研究:WCR:中亚和西南亚水文学:区域大气环流与大范围气候变率之间的联系
  • 批准号:
    0233563
  • 财政年份:
    2003
  • 资助金额:
    $ 9.45万
  • 项目类别:
    Standard Grant
Collaborative Research: WCR: Hydrology of Central and Southwest Asia: Connections Between Regional Atmospheric Circulation and Large-scale Climate Variability
合作研究:WCR:中亚和西南亚水文学:区域大气环流与大范围气候变率之间的联系
  • 批准号:
    0233651
  • 财政年份:
    2003
  • 资助金额:
    $ 9.45万
  • 项目类别:
    Standard Grant
Collaborative Research: WCR: Ecohydrology of Semiarid Woodlands: Role of Woody Plants in the Water Cycle
合作研究:WCR:半干旱林地的生态水文学:木本植物在水循环中的作用
  • 批准号:
    0233667
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    2003
  • 资助金额:
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