Collaborative Research: Wildfire and Mountain Pine Beetle Outbreaks in Subalpine Forests: Cross-Scale Interactions Under Varying Climate
Collaborative Research: Wildfire and Mountain Pine Beetle Outbreaks in Subalpine Forests: Cross-Scale Interactions Under Varying Climate
批准号:
0743498
负责人:
Thomas Veblen
金额:
$35.22万
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
2008
资助国家:
美国
项目状态:
已结题
起止时间:
2008-04-01 至 2012-03-31
中文摘要
本土树皮甲虫(Dendroctonus spp.)的大规模爆发正在北美洲西部的针叶林中发生,从阿拉斯加西部到美国西南部,据信与气候变暖有关。在科罗拉多州,超过 270,000 公顷的黑松森林最近受到山松甲虫 (MPB) (D. ponderosae) 的侵扰,这引起了公众对甲虫杀死后火灾危险增加的广泛关注。这项研究解决了科罗拉多州北部亚高山森林中野火、爆发和气候相互作用及其潜在跨尺度反馈的四个关键问题。 1) 季节性、年度和数十年时间尺度的气候变化如何影响复杂景观中 MPB 爆发的引发和传播? 2) 先前的火灾干扰造成的景观异质性如何影响复杂景观中 MPB 爆发的后续干扰的风险和/或蔓延? 3) MPB 先前干扰造成的景观异质性如何影响复杂景观中的燃料危害和野火风险? 4) 气候和景观之间特定的突发事件如何影响野火和 MPB 爆发的引发和蔓延?该项目将研究不同空间尺度和不同气候条件下野火和树皮甲虫爆发之间可能的反馈。这项研究和相关的推广活动将增进对甲虫死亡对未来火灾风险影响的了解,这引起了资源管理者、火灾缓解社区和树皮甲虫影响地区公众的广泛兴趣。
英文摘要
Large outbreaks of native bark beetles (Dendroctonus spp.) are occurring throughout coniferous forests of western North America, from western Alaska to the U.S. Southwest and are believed to be related to climatic warming. In Colorado more than 270,000 hectares of lodgepole pine forests have recently been infested by mountain pine beetle (MPB) (D. ponderosae), which has led to widespread public concern about increased fire hazard following beetle kill.This research addresses four key questions about interactions of wildfire, outbreaks and climate and their potential cross-scale feedbacks in subalpine forests in northern Colorado. 1) How does climatic variation at seasonal, annual, and multi-decadal time scales affect the initiation and spread of MPB outbreaks across complex landscapes? 2) How does the landscape heterogeneity created by prior disturbance by fire affect the risk and/or spread of subsequent disturbance by MPB outbreak across complex landscapes? 3) How does the landscape heterogeneity created by prior disturbance by MPB affect the fuel hazard and risk of wildfire across complex landscapes? 4) How do context-specific contingencies between climate and the landscape affect the initiation and spread of wildfire and MPB outbreaks?This project will examine possible feedbacks between wildfires and bark beetle outbreaks across different spatial scales and under varying climatic conditions. The research and associated outreach will improve understanding of the influence of beetle kill on future fire risk, which is of broad current interest to resource managers, the fire mitigation community and the public living in the bark-beetle affected areas.
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批准号:1634163
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批准号:1457894
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资助金额:$1.52万
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负责人:Thomas Veblen
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批准号:1302233
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项目类别:Standard Grant
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资助金额:$1.6万
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批准号:1203204
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项目类别:Standard Grant
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资助金额:$1.17万
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财政年份:2012
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负责人:Thomas Veblen
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Doctoral Dissertation Research: Spatial and Temporal Variability of Post-Fire Conifer Regeneration in Lower Treeline Forests of the U.S. Rocky Mountains
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批准号:1232997
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项目类别:Standard Grant
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资助金额:$1.6万
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财政年份:2012
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负责人:Thomas Veblen
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依托单位:
Doctoral Dissertation Research: Mountain Pine Beetle and Fire Influences on the Regeneration of Lodgepole Pine in Northern Colorado
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批准号:1030845
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项目类别:Standard Grant
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资助金额:$1.2万
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财政年份:2010
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负责人:Thomas Veblen
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依托单位:
Wildfire Regime Shifts in Southern South America from Tree-Ring Reconstructed Fire History Networks: Climatic Controls, Land Use, and Ecological Feedbacks
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批准号:0956552
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项目类别:Continuing Grant
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资助金额:$30.0万
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负责人:Thomas Veblen
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批准号:1002665
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项目类别:Standard Grant
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资助金额:$1.2万
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财政年份:2010
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负责人:Thomas Veblen
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依托单位:
Doctoral Dissertation Research: Effects of Climate Variation on Tree Mortality Across Spatially Heterogeneous Subalpine Forest Landscapes in the Front Range of Colorado
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批准号:0825823
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项目类别:Standard Grant
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资助金额:$1.2万
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财政年份:2008
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负责人:Thomas Veblen
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依托单位:
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批准号:0540928
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项目类别:Continuing Grant
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资助金额:$0.0万
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负责人:Thomas Veblen
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依托单位:
Doctoral Dissertation Research: Causes and Consequences of Forest Dieback in Temperate Rainforests Across Western Patagonia: A Multi-Scale Approach
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批准号:0602166
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项目类别:Standard Grant
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资助金额:$1.2万
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财政年份:2006
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负责人:Thomas Veblen
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依托单位:
Doctoral Dissertation Research: Environmental Heterogeneity and Insect Outbreaks in Patagonian Forests
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批准号:0602164
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项目类别:Standard Grant
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资助金额:$1.19万
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财政年份:2006
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负责人:Thomas Veblen
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依托单位:
Climatic Variation and Disturbance Interactions in Subalpine Rocky Mountain Forests
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批准号:0314305
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项目类别:Continuing Grant
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资助金额:$30.0万
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财政年份:2003
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负责人:Thomas Veblen
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依托单位:
Doctoral Dissertation Research: A Multiscale Analysis of Natural and Human Influences on the Variability of Subalpine Forest Fire History in Rocky Mountain National Park
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批准号:0327502
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项目类别:Standard Grant
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资助金额:$1.2万
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财政年份:2003
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负责人:Thomas Veblen
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依托单位:
Biota and Ecosystems of the Southern Temperate Zone: Group Travel Award for an International Conference in Cape Town, South Africa 2003
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批准号:0203254
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项目类别:Standard Grant
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资助金额:$4.4万
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财政年份:2002
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负责人:Thomas Veblen
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依托单位:
Doctoral Dissertation Research: The Historic Range of Variability of Ponderosa Pine in the Northern Colorado Front Range: Past Fire Types and Fire Effects
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批准号:0221493
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项目类别:Standard Grant
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资助金额:$1.2万
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财政年份:2002
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负责人:Thomas Veblen
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Doctoral Dissertation Research: The Effects of Climate and Disturbance Variation on Post-Fire Regeneration of Madrean Pine-Oak Forests in Mexico's Sierra Madre Occidental
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批准号:0201807
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项目类别:Standard Grant
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资助金额:$1.0万
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财政年份:2002
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负责人:Thomas Veblen
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依托单位:
Fire and Landscape Change in Northern Patagonia, Argentina: Integrating Landscape Heterogeneity, Land Use, and Climatic Variability
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批准号:0117366
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项目类别:Continuing Grant
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资助金额:$28.59万
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财政年份:2001
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负责人:Thomas Veblen
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依托单位:
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批准号:0000231
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项目类别:Standard Grant
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资助金额:$1.0万
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负责人:Thomas Veblen
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依托单位:
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