气候变化领域集成服务门户(CCPortal): Measuring and modeling evapotranspiration of a Populus euphratica forest in northwestern China

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DOI	10.1007/s11676-020-01228-1
	Measuring and modeling evapotranspiration of a Populus euphratica forest in northwestern China
	Gao, Guanlong; Feng, Qi; Liu, Xiande; Zhao, Yonghua
发表日期	2021
ISSN	1007-662X
EISSN	1993-0607
起始页码	1963
结束页码	1977
卷号	32 期号:5
英文摘要	Vegetation is sparsely distributed in the arid regions of northwestern China, and accurately measuring and partitioning of evapotranspiration is of importance for ecosystems in such areas. In this study, we measured and analyzed diurnal and phenological variations in evapotranspiration using the eddy-covariance method based on the Penman-Monteith, Priestley-Taylor, Shuttleworth-Wallace models, a newly proposed improved dual source model and a clumped model in a forest reserve in the Ejin oasis of Populus euphratica in 2015 and 2016 growing seasons. A sensitivity analysis was performed for the models with higher accuracies and we examined the biotic and abiotic controls on evapotranspiration. The results show that the total amounts of evapotranspiration during the two growing seasons in 2015 and 2016 were 622 and 612 mm, respectively. Phenological variations in evapotranspiration produced single-peak curves, while diurnal variations reflected the influence of high temperatures on some afternoons. The Priestley-Taylor and the improved dual source models gave the most accurate evapotranspiration values at the daily scale and appeared to be most suitable for the estimation of evapotranspiration for the species in arid regions. In addition, both models were the most sensitive to net radiation (R-n).
英文关键词	Evapotranspiration; Eddy– covariance; Populus euphratica; Northwestern China
WOS研究方向	Forestry
WOS类目	Forestry
WOS关键词	EDDY COVARIANCE MEASUREMENTS ; LATENT-HEAT FLUX ; BOWEN-RATIO ; PRIESTLEY-TAYLOR ; PENMAN-MONTEITH ; 2-SOURCE MODEL ; SAP FLOW ; ISOTOPIC COMPOSITION ; STABLE-ISOTOPE ; USE EFFICIENCY
WOS记录号	WOS:000582835700002
来源期刊	JOURNAL OF FORESTRY RESEARCH
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/239340
作者单位	[Gao, Guanlong] Shanxi Univ, Coll Environm & Resource, Taiyuan 030006, Peoples R China; [Gao, Guanlong; Zhao, Yonghua] Changan Univ, Shaanxi Key Lab Land Consolidat, Xian 710064, Peoples R China; [Gao, Guanlong; Feng, Qi] Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China; [Liu, Xiande] Acad Water Resources Conservat Forests Qilian Mou, Zhangye 734000, Peoples R China
推荐引用方式 GB/T 7714	Gao, Guanlong,Feng, Qi,Liu, Xiande,et al. Measuring and modeling evapotranspiration of a Populus euphratica forest in northwestern China[J]. 中国科学院西北生态环境资源研究院,2021,32(5).
APA	Gao, Guanlong,Feng, Qi,Liu, Xiande,&Zhao, Yonghua.(2021).Measuring and modeling evapotranspiration of a Populus euphratica forest in northwestern China.JOURNAL OF FORESTRY RESEARCH,32(5).
MLA	Gao, Guanlong,et al."Measuring and modeling evapotranspiration of a Populus euphratica forest in northwestern China".JOURNAL OF FORESTRY RESEARCH 32.5(2021).