干旱区生态环境知识资源中心(Arid): Attribution of growing season evapotranspiration variability considering snowmelt and vegetation changes in the arid alpine basins

Arid

DOI	10.5194/hess-25-3455-2021
	Attribution of growing season evapotranspiration variability considering snowmelt and vegetation changes in the arid alpine basins
	Ning, Tingting; Li, Zhi; Feng, Qi; Li, Zongxing; Qin, Yanyan
通讯作者	Feng, Q (corresponding author), Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basin, Lanzhou 730000, Peoples R China. ; Feng, Q (corresponding author), Qilian Mt Ecoenvironm Res Ctr Gansu Prov, Lanzhou 730000, Peoples R China.
来源期刊	HYDROLOGY AND EARTH SYSTEM SCIENCES
ISSN	1027-5606
EISSN	1607-7938
出版年	2021
卷号	25 期号:6 页码:3455-3469
英文摘要	Previous studies have successfully applied variance decomposition frameworks based on the Budyko equations to determine the relative contribution of variability in precipitation, potential evapotranspiration (E-0), and total water storage changes (Delta S) to evapotranspiration variance (sigma(2)(ET)) on different timescales; however, the effects of snowmelt (Q(m)) and vegetation (M) changes have not been incorporated into this framework in snow-dependent basins. Taking the arid alpine basins in the Qilian Mountains in northwest China as the study area, we extended the Budyko framework to decompose the growing season sigma(2)(ET) into the temporal variance and covariance of rainfall (R), E-0, Delta S, Q(m), and M. The results indicate that the incorporation of Q(m) could improve the performance of the Budyko framework on a monthly scale; sigma(2)(ET) was primarily controlled by the R variance with a mean contribution of 63 %, followed by the coupled R and M (24.3 %) and then the coupled R and E-0 (14.1 %). The effects of M variance or Q(m) variance cannot be ignored because they contribute 4.3% and 1.8% of sigma(2)(ET), respectively. By contrast, the interaction of some coupled factors adversely affected sigma(2)(ET), and the out-of-phase seasonality between R and Q(m) had the largest effect (-7.6 %). Our methodology and these findings are helpful for quantitatively assessing and understanding hydrological responses to climate and vegetation changes in snow-dependent regions on a finer timescale.
类型	Article
语种	英语
开放获取类型	Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000664288300001
WOS关键词	WATER-BALANCE ; CLIMATE-CHANGE ; RIVER-BASIN ; TEMPORAL VARIABILITY ; TERRESTRIAL STORAGE ; QILIAN MOUNTAINS ; LOESS PLATEAU ; HEIHE RIVER ; RUNOFF ; PRECIPITATION
WOS类目	Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Geology ; Water Resources
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368068
作者单位	[Ning, Tingting; Feng, Qi; Li, Zongxing] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basin, Lanzhou 730000, Peoples R China; [Ning, Tingting; Qin, Yanyan] Chinese Acad Sci, Key Lab Land Surface Proc & Climate Change Cold &, Lanzhou 730000, Peoples R China; [Ning, Tingting; Feng, Qi; Li, Zongxing] Qilian Mt Ecoenvironm Res Ctr Gansu Prov, Lanzhou 730000, Peoples R China; [Li, Zhi] Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Ning, Tingting,Li, Zhi,Feng, Qi,et al. Attribution of growing season evapotranspiration variability considering snowmelt and vegetation changes in the arid alpine basins[J]. 西北农林科技大学,2021,25(6):3455-3469.
APA	Ning, Tingting,Li, Zhi,Feng, Qi,Li, Zongxing,&Qin, Yanyan.(2021).Attribution of growing season evapotranspiration variability considering snowmelt and vegetation changes in the arid alpine basins.HYDROLOGY AND EARTH SYSTEM SCIENCES,25(6),3455-3469.
MLA	Ning, Tingting,et al."Attribution of growing season evapotranspiration variability considering snowmelt and vegetation changes in the arid alpine basins".HYDROLOGY AND EARTH SYSTEM SCIENCES 25.6(2021):3455-3469.