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Response of Ecosystem Water Use Efficiency to Drought over China during 1982-2015: Spatiotemporal Variability and Resilience
Guo, Limai1,2,3; Sun, Fubao2,4,5; Liu, Wenbin2; Zhang, Yongguang1,3; Wang, Hong2; Cui, Huijuan2; Wang, Hongquan6; Zhang, Jie2; Du, Benxu7
2019-07-01
Source PublicationFORESTS
Volume10Issue:7Pages:15
Corresponding AuthorSun, Fubao(sunfb@igsnrr.ac.cn)
AbstractEcosystem water use e ffi ciency (WUE describes carbon-water flux coupling in terrestrial ecosystems. Understanding response and resilience of WUE to drought are essential for sustainable water resource and ecosystem management under increasing drought risks over China due to climate warming. Here we analyzed the response of ecosystem WUE to drought (spatiotemporal variability and resilience) over China during 1982-2015 based on an evapotranspiration (ET) dataset based on the model tree ensemble (MTE) algorithm using flux-tower ET measurements and satellite-retrieved GPP data. The results showed that the multiyear average WUE was 1.55 g C kg 1 H2O over China. WUE increased in 77.1% of Chinese territory during the past 34 years. During drought periods, the ecosystem WUE increased mainly in the northeast of Inner Mongolia, Northeast China and some regions in southern China with abundant forests but decreased in northwestern and central China. An apparent lagging e ff ect of drought on ecosystem WUE was observed in the east of Inner Mongolia and Northeast China, the west and east regions of North China and the central part of Tibetan Plateau. Some ecosystems (e. g., deciduous needle-leaf forests, deciduous broadleaf forests, evergreen broadleaf forests and evergreen needle-leaf forests) in Central China, Northeast and Southwest China exhibited relatively greater resilience to drought than others by improving their WUE. Our findings would provide useful information for Chinese government to adopt a reasonable approach for maintaining the structure and functions of ecosystems under drought disturbance in future.
Keywordwater use efficiency drought ecosystem resilience spatiotemporal variability vegetation types
DOI10.3390/f10070598
WOS KeywordSPATIALLY VARYING RELATIONSHIPS ; TERRESTRIAL ECOSYSTEMS ; PRIMARY PRODUCTIVITY ; FOREST ECOSYSTEMS ; EDDY COVARIANCE ; GLOBAL DROUGHT ; CLIMATE-CHANGE ; CARBON FLUXES ; LAND-USE ; EVAPOTRANSPIRATION
Indexed BySCI
Language英语
Funding ProjectStrategic Priority Research Program of the Chinese Academy of Sciences[XDA23100401] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23040504] ; National Key Research and Development Program of China[2016YFC0401401] ; National Key Research and Development Program of China[2016YFA0602402] ; National Science Foundation of China[41601035]
Funding OrganizationStrategic Priority Research Program of the Chinese Academy of Sciences ; National Key Research and Development Program of China ; National Science Foundation of China
WOS Research AreaForestry
WOS SubjectForestry
WOS IDWOS:000482080800072
PublisherMDPI
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/68652
Collection中国科学院地理科学与资源研究所
Corresponding AuthorSun, Fubao
Affiliation1.Nanjing Univ, Int Inst Earth Syst Sci, Jiangsu Prov Key Lab Geog Informat Sci & Technol, Nanjing 210023, Jiangsu, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
3.Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing 210023, Jiangsu, Peoples R China
4.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China
5.Chinese Acad Sci, Ctr Water Resources Res, Beijing 1001018, Peoples R China
6.Zhejiang Univ, Inst Agr Remote Sensing & Geoinformat, Dept Environm & Resource, Hangzhou 310058, Zhejiang, Peoples R China
7.Nat Resources Serv Ctr, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Guo, Limai,Sun, Fubao,Liu, Wenbin,et al. Response of Ecosystem Water Use Efficiency to Drought over China during 1982-2015: Spatiotemporal Variability and Resilience[J]. FORESTS,2019,10(7):15.
APA Guo, Limai.,Sun, Fubao.,Liu, Wenbin.,Zhang, Yongguang.,Wang, Hong.,...&Du, Benxu.(2019).Response of Ecosystem Water Use Efficiency to Drought over China during 1982-2015: Spatiotemporal Variability and Resilience.FORESTS,10(7),15.
MLA Guo, Limai,et al."Response of Ecosystem Water Use Efficiency to Drought over China during 1982-2015: Spatiotemporal Variability and Resilience".FORESTS 10.7(2019):15.
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