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Variability, tendencies, and climate controls of terrestrial evapotranspiration and gross primary productivity in the recent decade over China
Mo, Xingguo1,2; Liu, Suxia1,2; Chen, Xuejuan1; Hu, Shi1
2018-06-01
Source PublicationECOHYDROLOGY
ISSN1936-0584
Volume11Issue:4Pages:13
Corresponding AuthorMo, Xingguo(moxg@igsnrr.ac.cn)
AbstractAccurately estimating regional water and vegetation carbon fixation and understanding their covariation mechanisms will benefit regional water resources and ecosystem management. The process-based vegetation interface processes model was employed to simulate the spatiotemporal variations of evapotranspiration (ET) and vegetation gross primary production (GPP) over the land mass of China, by integrating the 8-day Terra-MODIS leaf area index dataset from 2000 to 2013. It is found that there are remarkable spatial variations in annual ET and GPP across the country, top values being around 1,200mm for ET and 3,000gCm(-2) for GPP mostly occurred in the southern rainforests. Average annual ET and GPP are weakly increasing, in which about one third is significant. At annual scale, variability of ET follows precipitation variations, whereas variability of GPP follows variations of both precipitation and leaf area index. At monthly scale, variations of ET and GPP are more correlated with net radiation than precipitation. It is revealed that the climatic factors dominating water and carbon fluxes are different over the typical climate zones. The increasing GPP and water use efficiency are benefitting the regional vegetation recovery and carbon fixation, however, more water consumption may exaggerate the ecosystem vulnerability in water-limited zones.
Keywordclimatic control process-based VIP model spatiotemporal tendency terrestrial ET and GPP
DOI10.1002/eco.1951
WOS KeywordLAND-SURFACE EVAPORATION ; ECO-HYDROLOGICAL MODEL ; WATER-USE EFFICIENCY ; CARBON-DIOXIDE ; INTERANNUAL VARIABILITY ; TEMPORAL VARIATION ; EASTERN CHINA ; SOIL-MOISTURE ; GRID-SIZE ; BASIN
Indexed BySCI
Language英语
Funding ProjectNatural Sciences Fundation of China[41471026] ; National Key R&D Program of China[2017YFA0603702]
Funding OrganizationNatural Sciences Fundation of China ; National Key R&D Program of China
WOS Research AreaEnvironmental Sciences & Ecology ; Water Resources
WOS SubjectEcology ; Environmental Sciences ; Water Resources
WOS IDWOS:000434219200014
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/54955
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, Coll Resources & Environment, Sinodanish Ctr, Beijing 10049, Peoples R China
Recommended Citation
GB/T 7714
Mo, Xingguo,Liu, Suxia,Chen, Xuejuan,et al. Variability, tendencies, and climate controls of terrestrial evapotranspiration and gross primary productivity in the recent decade over China[J]. ECOHYDROLOGY,2018,11(4):13.
APA Mo, Xingguo,Liu, Suxia,Chen, Xuejuan,&Hu, Shi.(2018).Variability, tendencies, and climate controls of terrestrial evapotranspiration and gross primary productivity in the recent decade over China.ECOHYDROLOGY,11(4),13.
MLA Mo, Xingguo,et al."Variability, tendencies, and climate controls of terrestrial evapotranspiration and gross primary productivity in the recent decade over China".ECOHYDROLOGY 11.4(2018):13.
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