干旱区生态环境知识资源中心(Arid): Measuring and modeling evapotranspiration of a Populus euphratica forest in northwestern China

Arid

	Measuring and modeling evapotranspiration of a Populus euphratica forest in northwestern China
	Gao Guanlong; Feng Qi; Liu Xiande; Zhao Yonghua
来源期刊	Journal of Forestry Research
ISSN	1007-662X
出版年	2021
卷号	32 期号:5 页码:1963-1977
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
类型	Article
语种	英语
收录类别	CSCD
WOS类目	Forestry
CSCD记录号	CSCD:7080447
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377441
作者单位	Gao Guanlong, College of Environment and Resource,Shanxi University;;Chang'an University;;Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences, ;;Shaanxi Key Laboratory of Land Consolidation;;, Taiyuan;;Xi'an;;Lanzhou, ;;;; 030006;;710064;;730000.; Feng Qi, Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Liu Xiande, Academy of Water Resources Conservation Forests in Qilian Mountains of Gansu Province, Zhangye, Gansu 734000, China.; Zhao Yonghua, Chang'an University, Shaanxi Key Laboratory of Land Consolidation, Xi'an, Shaanxi 710064, 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],2021,32(5):1963-1977.
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),1963-1977.
MLA	Gao Guanlong,et al."Measuring and modeling evapotranspiration of a Populus euphratica forest in northwestern China".Journal of Forestry Research 32.5(2021):1963-1977.