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Dynamic traceability effects of soil moisture on the precipitation-vegetation association in drylands

文献类型：期刊论文

作者Zhao, Wei5; Yu, Xiubo4,5; Xu, Chengdong3,5; Li, Shenggong4,5; Wu, Genan2; Yuan, Wenping1
刊名JOURNAL OF HYDROLOGY
出版日期2022-12-01
卷号615页码:9
ISSN号0022-1694
关键词Soil moisture Climate change Vegetation index Precipitation Drylands Carbon uptake variability
DOI10.1016/j.jhydrol.2022.128645
通讯作者Yu, Xiubo(yuxb@igsnrr.ac.cn)
英文摘要Vegetation growth is critical in characterizing ecosystem carbon sequestration. Water availability profoundly affects the interaction between climate change and vegetation dynamics in drylands. However, the associations of the precipitation-vegetation index (PRE-VI) and temperature-vegetation index (TEM-VI) as well as whether and how the soil moisture modulates PRE-VI and TEM-VI are still unclear. Precipitation contributed substantially much more to vegetation dynamics than temperature, and PRE-VI associations were greater in the Southern Hemisphere than those in the Northern Hemisphere in global drylands. The traceability effects of soil moisture on PRE-VI and TEM-VI were investigated, and a convex shape was observed for PRE-VI as soil moisture increased, but not significant trend for TEM-VI. It showed that moderate soil moisture enhanced PRE-VI associations through the maintenance of reasonable surface-atmosphere feedback to counteract the balance of plant growth and energy collocation. In the past three decades, PRE-VI associations decreased with the increase in soil moisture, suggesting the consistency of the spatial and temporal pattern of the effect of soil moisture on PRE-VI associations in water-limited ecosystems. Our results implied that changes in soil moisture reflect changes in climate-vegetation associations and can guide nature-based solutions to improve ecosystem carbon sink.
WOS关键词CLIMATE-CHANGE ; CARBON ; LAND ; FEEDBACKS ; SURFACE ; WATER ; PRODUCTIVITY ; CO2
资助项目International Partnership Program of Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; [121311KYSB20170004] ; [2020M670439]
WOS研究方向Engineering ; Geology ; Water Resources
语种英语
出版者ELSEVIER
WOS记录号WOS:000920723500004
资助机构International Partnership Program of Chinese Academy of Sciences ; China Postdoctoral Science Foundation
源URL[http://ir.igsnrr.ac.cn/handle/311030/189942]  
专题中国科学院地理科学与资源研究所
通讯作者Yu, Xiubo
作者单位1.Sun Yat Sen Univ, Sch Atmospher Sci, Guangzhou 519082, Peoples R China
2.China Acad Space Technol, Inst Spacecraft Applicat Syst Engn, Beijing 100094, Peoples R China
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China
4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China
5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714		 Zhao, Wei,Yu, Xiubo,Xu, Chengdong,et al. Dynamic traceability effects of soil moisture on the precipitation-vegetation association in drylands[J]. JOURNAL OF HYDROLOGY,2022,615:9.
APA Zhao, Wei,Yu, Xiubo,Xu, Chengdong,Li, Shenggong,Wu, Genan,&Yuan, Wenping.(2022).Dynamic traceability effects of soil moisture on the precipitation-vegetation association in drylands.JOURNAL OF HYDROLOGY,615,9.
MLA Zhao, Wei,et al."Dynamic traceability effects of soil moisture on the precipitation-vegetation association in drylands".JOURNAL OF HYDROLOGY 615(2022):9.

入库方式： OAI收割

来源：地理科学与资源研究所

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