Partitioning climate and human contributions to changes in mean annual streamflow based on the Budyko complementary relationship in the Loess Plateau, China

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Partitioning climate and human contributions to changes in mean annual streamflow based on the Budyko complementary relationship in the Loess Plateau, China
	Wang, Feiyu ; Duan, Keqin ; Fu, Shuyi ; Gou, Fen ; Liang, Wei ; Yan, Jianwu ; Zhang, Weibin
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2019-05-15
卷号	665 页码:579-590
关键词	Time-varying streamflow Climate change Human activity Budyko-based complementary method Loess Plateau
ISSN号	0048-9697
英文摘要	Reliable attribution of changes in streamflow is fundamental to our understanding of the hydrological cycle and is needed to enable decision makers to manage water resources in a sustainable way. Here, we used a new attribution method based on the Budyko framework (complementary method) to quantify the contributions of climate change and human activities to the changes in annual streamflow in 22 catchments on China's Loess Plateau during the past three decades. Our results showed that after the Grain-for-Green (GFG) project, the annual streamflow decreased by 36% on average (3-72%), with reductions being more intense in northern catchments. The sensitivity of streamflow to precipitation and potential evapotranspiration also decreased, with a mean rate of -0.7 mm yr(-1)/mm yr(-1) and -0.2 mm yr(-1)/mm yr(-1), respectively. Using the upper and lower bounds of the human effects on streamflow from the complementary method as a reference, we found that these effects at half of the stations were under-or overestimated by the total differential method. The contribution analysis from the complementary method showed that although human activities decreased streamflow by 26% (or 54% as a relative value) on average, the contribution of potential evapotranspiration alone to the decrease in streamflow was 9% (42%), highlighting the important role of increasing atmospheric moisture demand in the water cycle. In addition, the 5-year incremental analysis showed that the impacts of climate and human activities on streamflow had strong spatiotemporal variability. (c) 2019 Elsevier B.V. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/42768]
专题	生态环境研究中心_城市与区域生态国家重点实验室
作者单位	1.Shaanxi Normal Univ, Sch Geog & Tourism, Xian 710119, Shaanxi, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China
推荐引用方式 GB/T 7714	Wang, Feiyu,Duan, Keqin,Fu, Shuyi,et al. Partitioning climate and human contributions to changes in mean annual streamflow based on the Budyko complementary relationship in the Loess Plateau, China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,665:579-590.
APA	Wang, Feiyu.,Duan, Keqin.,Fu, Shuyi.,Gou, Fen.,Liang, Wei.,...&Zhang, Weibin.(2019).Partitioning climate and human contributions to changes in mean annual streamflow based on the Budyko complementary relationship in the Loess Plateau, China.SCIENCE OF THE TOTAL ENVIRONMENT,665,579-590.
MLA	Wang, Feiyu,et al."Partitioning climate and human contributions to changes in mean annual streamflow based on the Budyko complementary relationship in the Loess Plateau, China".SCIENCE OF THE TOTAL ENVIRONMENT 665(2019):579-590.