Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41561-019-0388-5 |
California forest die-off linked to multi-year deep soil drying in 2012-2015 drought | |
Goulden, M. L.1; Bales, R. C.2,3 | |
2019-08-01 | |
发表期刊 | NATURE GEOSCIENCE |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2019 |
卷号 | 12期号:8页码:632-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Widespread episodes of recent forest die-off have been tied to the occurrence of anomalously warm droughts, although the underlying mechanisms remain inadequately understood. California's 2012-2015 drought, with exceptionally low precipitation and warmth, and widespread conifer death, provides an opportunity to explore the chain of events leading to forest die-off. Here, we present the spatial and temporal patterns of die-off and moisture deficit during California's drought, based on field and remote sensing observations. We found that die-off was closely tied to multi-year deep-rooting-zone drying, and that this relationship provides a framework with which to diagnose and predict mortality. Marked tree death in an intensively studied Sierra Nevada forest followed a four-year moisture overdraft, with cumulative 2012-2015 evapotranspiration exceeding precipitation by similar to 1,500 mm, and subsurface moisture exhaustion to 5-15-m depth. Observations across the entire Sierra Nevada further linked tree death to deep drying, with die-off and moisture overdraft covarying across latitude and elevation. Unusually dense vegetation and warm temperatures accelerated southern Sierran evapotranspiration in 2012-2015, intensifying overdraft and compounding die-off by an estimated 55%. Climate change is expected to further amplify evapotranspiration and moisture overdraft during drought, potentially increasing Sierran tree death during drought by similar to 15-20% degrees C-1. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000477864200013 |
WOS关键词 | TREE MORTALITY ; LEAF-AREA ; TIME-SERIES ; LANDSAT ; CLIMATE ; PRECIPITATION ; NDVI ; PHOTOSYNTHESIS ; REFLECTANCE ; TEMPERATURE |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/185816 |
专题 | 地球科学 气候变化 |
作者单位 | 1.Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USA; 2.Univ Calif Merced, Sch Engn, Merced, CA USA; 3.Univ Calif Merced, Sierra Nevada Res Inst, Merced, CA USA |
推荐引用方式 GB/T 7714 | Goulden, M. L.,Bales, R. C.. California forest die-off linked to multi-year deep soil drying in 2012-2015 drought[J]. NATURE GEOSCIENCE,2019,12(8):632-+. |
APA | Goulden, M. L.,&Bales, R. C..(2019).California forest die-off linked to multi-year deep soil drying in 2012-2015 drought.NATURE GEOSCIENCE,12(8),632-+. |
MLA | Goulden, M. L.,et al."California forest die-off linked to multi-year deep soil drying in 2012-2015 drought".NATURE GEOSCIENCE 12.8(2019):632-+. |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Goulden, M. L.]的文章 |
[Bales, R. C.]的文章 |
百度学术 |
百度学术中相似的文章 |
[Goulden, M. L.]的文章 |
[Bales, R. C.]的文章 |
必应学术 |
必应学术中相似的文章 |
[Goulden, M. L.]的文章 |
[Bales, R. C.]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论