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Partitioning of evapotranspiration and its relation to carbon dioxide fluxes in Inner Mongolia steppe
Huang, X.1; Hao, Y.1; Wang, Y.1; Wang, Y.2; Cui, X.2; Mo, X.3; Zhou, X.2
2010-12-01
Source PublicationJOURNAL OF ARID ENVIRONMENTS
Volume74Issue:12Pages:1616-1623
AbstractA process-based model (VIP model) was used to partition evapotranspiration (ET) Into transpiration (T) and evaporation (E) Gross ecosystem productivity (GEP) and ecosystem respiration (R(e)) were calculated based on CO(2) fluxes measured by eddy covariance in a typical steppe. The results revealed that the water and CO(2) fluxes were low before the growth of vegetation in the spring During the growth period, plant transpiration was found to account for 33-74% of the total ET Additionally, the variations in daily net ecosystem exchange (NEE) and GEP were found to be correlated with precipitation and T, but not ET during the study periods The peak responses of R(e) to rain events lagged by 1-2 days when compared to the evaporation peak The leaf area index (LAI) primarily regulated the changes in water use efficiency (WUE). Taken together, the results of this study indicated that the development of vegetation and the pattern of precipitation worked in concert to regulate the components of water and carbon fluxes and their coupling. (C) 2010 Elsevier Ltd All rights reserved.
SubtypeArticle
KeywordEddy Covariance Evaporation Model Precipitation Pulse Transpiration
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
WOS Subject ExtendedEnvironmental Sciences & Ecology
WOS KeywordWATER-VAPOR EXCHANGE ; SOIL-WATER ; CHIHUAHUAN DESERT ; PRECIPITATION PULSES ; SEASONAL PATTERNS ; ENERGY-EXCHANGE ; USE EFFICIENCY ; H2O FLUXES ; ECOSYSTEM ; GRASSLAND
Indexed BySCI
Language英语
WOS SubjectEcology ; Environmental Sciences
WOS IDWOS:000283686900004
PublisherACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/67980
Collection中国科学院地理科学与资源研究所
Corresponding AuthorHao, Y.
Affiliation1.Chinese Acad Sci, Coll Life Sci, Grad Univ, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Coll Resources & Environm, Grad Univ, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Huang, X.,Hao, Y.,Wang, Y.,et al. Partitioning of evapotranspiration and its relation to carbon dioxide fluxes in Inner Mongolia steppe[J]. JOURNAL OF ARID ENVIRONMENTS,2010,74(12):1616-1623.
APA Huang, X..,Hao, Y..,Wang, Y..,Wang, Y..,Cui, X..,...&Zhou, X..(2010).Partitioning of evapotranspiration and its relation to carbon dioxide fluxes in Inner Mongolia steppe.JOURNAL OF ARID ENVIRONMENTS,74(12),1616-1623.
MLA Huang, X.,et al."Partitioning of evapotranspiration and its relation to carbon dioxide fluxes in Inner Mongolia steppe".JOURNAL OF ARID ENVIRONMENTS 74.12(2010):1616-1623.
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