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Contributions of climate change and human activities to ET and GPP trends over North China Plain from 2000 to 2014
Chen Xuejuan1,2; Mo Xingguo1,3; Hu Shi1; Liu Suxia1,3
2017-06-01
Source PublicationJOURNAL OF GEOGRAPHICAL SCIENCES
ISSN1009-637X
Volume27Issue:6Pages:661-680
Corresponding AuthorMo Xingguo(moxg@igsnrr.ac.cn)
AbstractQuantifying the contributions of climate change and human activities to ecosystem evapotranspiration (ET) and gross primary productivity (GPP) changes is important for adaptation assessment and sustainable development. Spatiotemporal patterns of ET and GPP were estimated from 2000 to 2014 over North China Plain (NCP) with a physical and remote sensing-based model. The contributions of climate change and human activities to ET and GPP trends were separated and quantified by the first difference de-trending method and multivariate regression. Results showed that annual ET and GPP increased weakly, with climate change and human activities contributing 0.188 mm yr(-2) and 0.466 mm yr(-2) to ET trend of 0.654 mm yr(-2), and-1.321 g C m(-2) yr(-2) and 7.542 g C m(-2) yr(-2) to GPP trend of 6.221 g C m(-2) yr(-2), respectively. In cropland, the increasing trends mainly occurred in wheat growing stage; the contributions of climate change to wheat and maize were both negative. Precipitation and sunshine duration were the major climatic factors regulating ET and GPP trends. It is concluded that human activities are the main drivers to the long term tendencies of water consumption and gross primary productivity in the NCP.
Keywordevapotranspiration gross primary production contribution process-based model multi-regression North China Plain
DOI10.1007/s11442-017-1399-z
WOS KeywordGROSS PRIMARY PRODUCTION ; REMOTE-SENSING DATA ; PAST 3 DECADES ; WINTER-WHEAT ; TIBETAN PLATEAU ; CROP PRODUCTION ; USE EFFICIENCY ; WATER-BALANCE ; RIVER-BASIN ; EVAPOTRANSPIRATION
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41471026] ; National Key Research and Development Program of China[2016YFC0401402]
Funding OrganizationNational Natural Science Foundation of China ; National Key Research and Development Program of China
WOS Research AreaPhysical Geography
WOS SubjectGeography, Physical
WOS IDWOS:000398212600002
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/64642
Collection中国科学院地理科学与资源研究所
Corresponding AuthorMo Xingguo
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Univ Chinese Acad Sci, Coll Resources & Environm, Sino Danish Ctr, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Chen Xuejuan,Mo Xingguo,Hu Shi,et al. Contributions of climate change and human activities to ET and GPP trends over North China Plain from 2000 to 2014[J]. JOURNAL OF GEOGRAPHICAL SCIENCES,2017,27(6):661-680.
APA Chen Xuejuan,Mo Xingguo,Hu Shi,&Liu Suxia.(2017).Contributions of climate change and human activities to ET and GPP trends over North China Plain from 2000 to 2014.JOURNAL OF GEOGRAPHICAL SCIENCES,27(6),661-680.
MLA Chen Xuejuan,et al."Contributions of climate change and human activities to ET and GPP trends over North China Plain from 2000 to 2014".JOURNAL OF GEOGRAPHICAL SCIENCES 27.6(2017):661-680.
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