Effects of different soil and water conservation measures on hydrological extremes and flood processes in the Yanhe River, Loess Plateau, China

doi:10.1007/s11069-021-04848-w

	Effects of different soil and water conservation measures on hydrological extremes and flood processes in the Yanhe River, Loess Plateau, China
	Gu, ChaoJun 1,2; Zhu, Yongqing 2; Li, Renhua 2; Yao, He 2; Mu, Xingmin 1,3
刊名	NATURAL HAZARDS
	2021-06-13
页码	22
关键词	Hydrological extremes Soil and water conservation Flood events Yanhe River Basin
ISSN号	0921-030X
DOI	10.1007/s11069-021-04848-w
通讯作者	Gu, ChaoJun(chaojungu1990@163.com)
英文摘要	The runoff and sediment load of the Loess Plateau have changed significantly due to the implementation of soil and water conservation measures since the 1970s. However, the effects of soil and water conservation measures on hydrological extremes have rarely been considered. In this study, we investigated the variations in hydrological extremes and flood processes during different periods in the Yanhe River Basin (a tributary of the Loess Plateau) based on the daily mean runoff and 117 flood event data from 1956 to 2013. The study periods were divided into reference period (1956-1969), engineering measures period (1970-1995), and biological control measures period (1996-2013) according to the change points of the annual streamflow and the actual human activity in the basin. The results of the hydrological high extremes (HF1(max), HF3(max), HF7(max)) exhibit a decreasing trend (P < 0.01), whereas the hydrological low extremes (HBF1(min), HBF3(min), HBF7(min)) show an increasing trend during 1956-2013. Compared with the hydrological extremes during the reference period, the hydrological high extremes increased during the engineering measures period at low (< 15%) and high frequency (> 80%), whereas decreased during the biological control measures period at almost all frequencies. The hydrological low extremes generally increased during both the engineering measures and biological control measures periods, particularly during the latter period. At the flood event scale, most flood event indices in connection with the runoff and sediment during the engineering measures period were significantly higher than those during the biological control measures period. The above results indicate that the ability to withstand hydrological extremes for the biological control measures was greater than that for the engineering measures in the studied basin. This work reveals the effects of different soil and water conservation measures on hydrological extremes in a typical basin of the Loess Plateau and hence can provide a useful reference for regional soil erosion control and disaster prevention policy-making.
资助项目	National Natural Science Foundation of China[4207072131] ; National Natural Science Foundation of China[41671285] ; National Key Research and Development Program of China[2016YFC0501707] ; National Key Research and Development Program of China[2016YFC0402401]
WOS关键词	YELLOW-RIVER ; CLIMATE-CHANGE ; SEDIMENT LOAD ; FOREST COVER ; RUNOFF ; STREAMFLOW ; BASIN ; CATCHMENT ; TRENDS ; IMPACTS
WOS研究方向	Geology ; Meteorology & Atmospheric Sciences ; Water Resources
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000661051300004
资助机构	National Natural Science Foundation of China ; National Key Research and Development Program of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/164104]
专题	中国科学院地理科学与资源研究所
通讯作者	Gu, ChaoJun
作者单位	1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Xinong Rd 26, Yangling 712100, Shaanxi, Peoples R China 2.Changjiang Water Resources Commiss, Yangtze River Basin Monitoring Ctr Stn Soil & Wat, Wuhan 430012, Hubei, Peoples R China 3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Gu, ChaoJun,Zhu, Yongqing,Li, Renhua,et al. Effects of different soil and water conservation measures on hydrological extremes and flood processes in the Yanhe River, Loess Plateau, China[J]. NATURAL HAZARDS,2021:22.
APA	Gu, ChaoJun,Zhu, Yongqing,Li, Renhua,Yao, He,&Mu, Xingmin.(2021).Effects of different soil and water conservation measures on hydrological extremes and flood processes in the Yanhe River, Loess Plateau, China.NATURAL HAZARDS,22.
MLA	Gu, ChaoJun,et al."Effects of different soil and water conservation measures on hydrological extremes and flood processes in the Yanhe River, Loess Plateau, China".NATURAL HAZARDS (2021):22.