Event-Specific Meteorological Drivers Shape Diverse Water-Use Efficiency Trajectories Under Drought Propagation
文献类型：期刊论文
| 作者 | Li, Feng5,9; Xin, Qinchuan2; Green, Julia K.3; Yi, Chuixiang4,6; Kemanian, Armen R.7; Kannenberg, Steven A.8; Stoy, Paul C.1; Yang, Yuting10,11; Lei, Huimin10,11; Xiong, Yujiu5 |
| 刊名 | GLOBAL CHANGE BIOLOGY
 |
| 出版日期 | 2026-01-09 |
| 卷号 | 32期号:1页码:e70690 |
| 关键词 | drought propagation drought sensitivity Earth System Models response trajectories water-use efficiency |
| ISSN号 | 1354-1013 |
| DOI | 10.1111/gcb.70690 |
| 产权排序 | 2 |
| 文献子类 | Article |
| 英文摘要 | Drought propagation from meteorological to soil drought marks a critical phase in regulating vegetation water-carbon dynamics, yet the response trajectories of water-use efficiency (WUE) during these events remain poorly understood. Here, combining global flux tower observations with simulations from Earth System Models (ESMs), we quantified the spatiotemporal patterns of drought propagation characteristics, identified WUE response trajectories for characteristic-specific droughts, and investigated their dominant drivers. We found that 58% of soil droughts follow meteorological droughts. Most sites experience drought propagation events with increasing intensity, faster propagation, and shorter intervals. Among all identifiable trajectories, nonmonotonic patterns account for approximately 60%. WUE response trajectories generally follow continuous and nonmonotonic patterns, dominated by a rise-then-fall pattern. This pattern reflects a process in which vegetation functions regulated by stomatal behavior are initially stressed and then partially recover. Intra-site variability is extremely pronounced, mainly driven by event-specific thermal factors such as air temperature and net radiation. ESMs reproduce broad site-level prevalence of nonmonotonic patterns, but show discrepancies in the relative importance of drivers due to the coupling of different land surface models. These findings challenge the notion of fixed vegetation functional responses and highlight the dynamic variability of response trajectories in relation to event-specific characteristics, and provide concrete diagnostics to guide model improvements. |
| URL标识 | 查看原文 |
| WOS关键词 | COMMUNITY LAND MODEL ; SURFACE MODEL ; VEGETATION ; FLUXES ; IMPACT |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001659129600001 |
| 出版者 | WILEY |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/219723]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 通讯作者 | Xiong, Yujiu; Fu, Zheng |
| 作者单位 | 1.Univ Wisconsin Madison, Dept Biol Syst Engn, Madison, WI USA; 2.Sun Yat Sen Univ, Sch Geog & Planning, Guangzhou, Peoples R China; 3.Univ Arizona, Dept Environm Sci, Tucson, AZ USA; 4.CUNY Queens Coll, Sch Earth & Environm Sci, Flushing, NY USA; 5.Sun Yat Sen Univ, Sch Civil Engn, Zhuhai 519082, Peoples R China; 6.CUNY, Grad Ctr, Earth & Environm Sci Dept, New York, NY USA; 7.Penn State Univ, Dept Plant Sci, University Pk, PA USA; 8.West Virginia Univ, Dept Biol, Morgantown, WV USA; 9.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China; 10.Tsinghua Univ, State Key Lab Hydrosci & Engn, Beijing, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Li, Feng,Xin, Qinchuan,Green, Julia K.,et al. Event-Specific Meteorological Drivers Shape Diverse Water-Use Efficiency Trajectories Under Drought Propagation[J]. GLOBAL CHANGE BIOLOGY,2026,32(1):e70690. |
| APA | Li, Feng.,Xin, Qinchuan.,Green, Julia K..,Yi, Chuixiang.,Kemanian, Armen R..,...&Fu, Zheng.(2026).Event-Specific Meteorological Drivers Shape Diverse Water-Use Efficiency Trajectories Under Drought Propagation.GLOBAL CHANGE BIOLOGY,32(1),e70690. |
| MLA | Li, Feng,et al."Event-Specific Meteorological Drivers Shape Diverse Water-Use Efficiency Trajectories Under Drought Propagation".GLOBAL CHANGE BIOLOGY 32.1(2026):e70690. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
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。