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Ecosystem water use efficiency response to drought over southwest China
Mokhtar, Ali1,2; He, Hongming1,3; Alsafadi, Karam4; Mohammed, Safwan5; He, Wenming6; Li, Yu7; Zhao, Hongfei1; Abdullahi, Nazir Muhammad8; Gyasi-Agyei, Yeboah9
2021-07-08
Source PublicationECOHYDROLOGY
ISSN1936-0584
Pages17
Corresponding AuthorHe, Hongming(hongming.he@yahoo.com) ; He, Wenming(hwmjim@163.com) ; Li, Yu(liyuljy@163.com)
AbstractDrought is showing an increasing trend as a result of the significant variation in precipitation and temperature in China. This study investigated the impacts of drought on ecosystem water use efficiency (WUE) in southwest China. The spatiotemporal distribution of drought and ecosystem WUE were analysed through integrated approaches based on observed climate and satellite remote sensing datasets to understand the response of ecosystem WUE to drought. Also, the impacts of climatic variables on gross primary productivity (GPP), evapotranspiration (ET) and WUE have been discussed. More than 30% of the total area can be categorized as suffering moderate drought. Six drought events (autumn 2006, autumn 2009, winter 2010, summer 2011, autumn 2011 and winter 2013) were identified during the period of 2001-2016. The average monthly WUE was 2.37 gC/kgH(2)O, showing a decreasing trend under the combined effects of drought and other environmental factors. Autumn 2006 exhibited the highest significant positive effect of drought on WUE on more than 80% of the total area that concentrated in the forest, shrubland, savanna and agriculture ecosystems. The results of this study have implications for ecosystem management and climate policy making that could allow implementing feasible water use strategies under a warming climate.
Keyworddrought gross primary productivity MODIS datasets spatiotemporal variability water use efficiency
DOI10.1002/eco.2317
WOS KeywordSTANDARDIZED PRECIPITATION INDEX ; TEMPORAL VARIABILITY ; FOREST ECOSYSTEMS ; CARBON-DIOXIDE ; CLIMATE-CHANGE ; ASPEN FOREST ; VEGETATION ; EVAPOTRANSPIRATION ; PRODUCTIVITY ; IMPACTS
Indexed BySCI
Language英语
Funding ProjectThe Second Tibetan Plateau Scientific Expedition and Research Program[SQ2019QZKK2003] ; Project of the National Key Research and Development Program[2017YFC0505200] ; Project of the National Key Research and Development Program[2017YFC0505205] ; The Integrated Scientific Expedition of the Ailao-Wuliang Mountains National Park[2019IB018] ; Key Platforms and Scientific Research Projects in Universities in Guangdong Province of China[2018 KTS CX212] ; Guangdong Rural Science and Technology Commissioner Project[319B0203] ; Science and Technology Basic Resources Investigation Program of China[2017FY101303] ; Strategic Priority, Research Program of the Chinese Academy of Sciences[XDA23020603] ; National Natural Science Foundation of China[41672180]
Funding OrganizationThe Second Tibetan Plateau Scientific Expedition and Research Program ; Project of the National Key Research and Development Program ; The Integrated Scientific Expedition of the Ailao-Wuliang Mountains National Park ; Key Platforms and Scientific Research Projects in Universities in Guangdong Province of China ; Guangdong Rural Science and Technology Commissioner Project ; Science and Technology Basic Resources Investigation Program of China ; Strategic Priority, Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China
WOS Research AreaEnvironmental Sciences & Ecology ; Water Resources
WOS SubjectEcology ; Environmental Sciences ; Water Resources
WOS IDWOS:000670535700001
PublisherWILEY
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/163780
Collection中国科学院地理科学与资源研究所
Corresponding AuthorHe, Hongming; He, Wenming; Li, Yu
Affiliation1.Chinese Acad Sci & Minist Water Resources, State Key Lab Soil Eros & Dryland Farming Loess P, Northwest Agr & Forestry Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
2.Cairo Univ, Dept Agr Engn, Fac Agr, Giza 12613, Egypt
3.East China Normal Univ, Sch Geog Sci, Key Lab Geog Informat Sci, Minist Educ, 500 Dongchuan Rd, Shanghai 210062, Peoples R China
4.Nanjing Univ Informat Sci & Technol, Sch Geog Sci, Nanjing 210044, Peoples R China
5.Univ Debrecen, Inst Land Use Tech & Precis Technol, Fac Agr & Food Sci & Environm Management, H-4032 Debrecen, Hungary
6.Jiaying Univ, Sch Chem & Environm, Guangdong Prov Key Lab Conservat & Precis Utiliza, Meizhou 514015, Guangdong, Peoples R China
7.Chinese Acad Sci, Inst Geog Sci & Nat Resources, Beijing 101400, Peoples R China
8.Northwest A&F Univ, Coll Econ & Management, Yangling 712100, Shaanxi, Peoples R China
9.Griffith Univ, Sch Engn & Built Environm, Nathan, Qld 4111, Australia
Recommended Citation
GB/T 7714
Mokhtar, Ali,He, Hongming,Alsafadi, Karam,et al. Ecosystem water use efficiency response to drought over southwest China[J]. ECOHYDROLOGY,2021:17.
APA Mokhtar, Ali.,He, Hongming.,Alsafadi, Karam.,Mohammed, Safwan.,He, Wenming.,...&Gyasi-Agyei, Yeboah.(2021).Ecosystem water use efficiency response to drought over southwest China.ECOHYDROLOGY,17.
MLA Mokhtar, Ali,et al."Ecosystem water use efficiency response to drought over southwest China".ECOHYDROLOGY (2021):17.
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