Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/aa8f55 |
Remotely sensed predictors of conifer tree mortality during severe drought | |
Brodrick, P. G.; Asner, G. P. | |
2017-11-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS |
ISSN | 1748-9326 |
出版年 | 2017 |
卷号 | 12期号:11 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Widespread, drought-induced forest mortality has been documented on every forested continent over the last two decades, yet early pre- mortality indicators of tree death remain poorly understood. Remotely sensed physiological-based measures offer a means for large-scale analysis to understand and predict drought-induced mortality. Here, we use laser-guided imaging spectroscopy from multiple years of aerial surveys to assess the impact of sustained canopy water loss on tree mortality. We analyze both gross canopy mortality in 2016 and the change in mortality between 2015 and 2016 in millions of sampled conifer forest locations throughout the Sierra Nevada mountains in California. On average, sustained water loss and gross mortality are strongly related, and year-to-year water loss within the drought indicates subsequent mortality. Both relationships are consistent after controlling for location and tree community composition, suggesting that these metrics may serve as indicators of mortality during a drought. |
英文关键词 | canopy water content progressive water stress forest vulnerability imaging spectroscopy Sierra Nevada California |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000415870000002 |
WOS关键词 | CALIFORNIA DROUGHT ; FORESTS ; CLIMATE ; SCIENCE ; RISK |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/15084 |
专题 | 气候变化 |
作者单位 | Carnegie Inst Sci, Dept Global Ecol, Stanford, CA 94305 USA |
推荐引用方式 GB/T 7714 | Brodrick, P. G.,Asner, G. P.. Remotely sensed predictors of conifer tree mortality during severe drought[J]. ENVIRONMENTAL RESEARCH LETTERS,2017,12(11). |
APA | Brodrick, P. G.,&Asner, G. P..(2017).Remotely sensed predictors of conifer tree mortality during severe drought.ENVIRONMENTAL RESEARCH LETTERS,12(11). |
MLA | Brodrick, P. G.,et al."Remotely sensed predictors of conifer tree mortality during severe drought".ENVIRONMENTAL RESEARCH LETTERS 12.11(2017). |
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