Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL083294 |
Low Subsurface Water Storage Capacity Relative to Annual Rainfall Decouples Mediterranean Plant Productivity and Water Use From Rainfall Variability | |
Hahm, W. J.1; Dralle, D. N.2; Rempe, D. M.3; Bryk, A. B.1; Thompson, S. E.4; Dawson, T. E.5; Dietrich, W. E.1 | |
2019-06-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:12页码:6544-6553 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Australia |
英文摘要 | Plant water stress in response to rainfall variability is mediated by subsurface water storage, yet the controls on stored plant-available water remain poorly understood. Here we develop a probabilistic water balance model for Mediterranean climates that relates the amount of water stored over the wet season to annual rainfall statistics and subsurface storage capacity in soil and weathered bedrock. This model predicts that low storage capacity-relative to winter rainfall-results in similar year-to-year summer water availability, as both relatively wet and dry winters replenish storage. Observed water balances in seven catchments in the Northern California Coast Ranges exhibited this dynamic. We hypothesized that plants would be decoupled from precipitation variability at these storage-capacity-limited sites and observed that summer productivity and water use (inferred from the enhanced vegetation index) were independent of winter rainfall totals. These areas emerged largely unscathed from recent extreme drought, despite widespread plant mortality elsewhere. |
英文关键词 | drought critical zone storage capacity rainfall variability Mediterranean climate ecohydrology |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000477616300044 |
WOS关键词 | DROUGHT-INDUCED TREE ; SOIL-WATER ; CLIMATE ; FOREST ; ZONE ; MULTIYEAR ; MORTALITY ; MOISTURE ; ROCK |
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/184243 |
专题 | 气候变化 |
作者单位 | 1.Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA; 2.Sacramento State Univ, Geol Dept, Sacramento, CA 95819 USA; 3.Univ Texas Austin, Dept Geol Sci, Jackson Sch Geosci, Austin, TX 78712 USA; 4.Univ Western Australia, Dept Civil Environm & Min Engn, Nedlands, WA, Australia; 5.Univ Calif Berkeley, Dept Integrat Biol, Ctr Stable Isotope Biogeochem, Berkeley, CA 94720 USA |
推荐引用方式 GB/T 7714 | Hahm, W. J.,Dralle, D. N.,Rempe, D. M.,et al. Low Subsurface Water Storage Capacity Relative to Annual Rainfall Decouples Mediterranean Plant Productivity and Water Use From Rainfall Variability[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(12):6544-6553. |
APA | Hahm, W. J..,Dralle, D. N..,Rempe, D. M..,Bryk, A. B..,Thompson, S. E..,...&Dietrich, W. E..(2019).Low Subsurface Water Storage Capacity Relative to Annual Rainfall Decouples Mediterranean Plant Productivity and Water Use From Rainfall Variability.GEOPHYSICAL RESEARCH LETTERS,46(12),6544-6553. |
MLA | Hahm, W. J.,et al."Low Subsurface Water Storage Capacity Relative to Annual Rainfall Decouples Mediterranean Plant Productivity and Water Use From Rainfall Variability".GEOPHYSICAL RESEARCH LETTERS 46.12(2019):6544-6553. |
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