Effects of water discharge rate and slope gradient on runoff and sediment yield related to tillage erosion

doi:10.1080/03650340.2020.1766676

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地表生过程与生态调控重点实验室

	Effects of water discharge rate and slope gradient on runoff and sediment yield related to tillage erosion
	Dai Jiadong 1,5; Zhang Jianhui 5; Zhang Zehong 4; Jia Lizhi 3; Xu Haichao 1,5; Wang Yong 2
刊名	ARCHIVES OF AGRONOMY AND SOIL SCIENCE
	2020
页码	DOI:10.1080/03650340.2020.1766676
关键词	Tillage erosion water discharge slope gradient runoff yield sediment yield
ISSN号	0365-0340
DOI	10.1080/03650340.2020.1766676
通讯作者	Zhang, Jianhui(zjh@imde.ac.cn)
产权排序	1
文献子类	Article;Early Access
英文摘要	Tillage erosion coupled with water erosion complicates soil erosion process on hilly croplands. This study aims to investigate the role of water discharge and slope gradient in the impact of tillage erosion on runoff and sediment yield by simulated tillage and scouring experiments. Results show that simulated tillage duration (10-, 20-, 30-, 35-, 40-year tillage) had positive effect on runoff yield, while soil infilling in rill by tillage (12, 21 kg m(-1)) retarded runoff yield. Sediment yield by overland flow is closely related to soil redistribution by tillage. Water discharge rate positively promoted the impact of tillage durations on runoff and sediment yield. In the premise of rill infilling, sediment yield increased significantly with increasing slope gradient, while runoff yield decreased by 29.3%, 1.7% and 1.3% for 0, 12, 21 kg m(-1)soil flux at the slope gradient of 15 degrees compared with those for the slope gradient of 10 degrees, respectively, implying a coupling relationship between rill infilling and slope gradient. Our results indicate that tillage erosion can alter hydrologic processes of the hillslope and exacerbate sediment yield, and water discharge and slope gradient can reinforce the impact of tillage erosion on runoff and sediment yield.
电子版国际标准刊号	1476-3567
资助项目	National Natural Science Foundation of China[41877069] ; National Natural Science Foundation of China[41571267] ; 135 Strategic Program of the Institute of Mountain Hazards and Environment, CAS[SDS-135-1702]
WOS关键词	SOIL-EROSION ; RAINFALL INTENSITY ; INTERRILL EROSION ; TRANSLOCATION ; AREA ; LANDSCAPE ; IMPACT ; RILLS
WOS研究方向	Agriculture
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000546478600001
资助机构	National Natural Science Foundation of China ; 135 Strategic Program of the Institute of Mountain Hazards and Environment, CAS
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/35194]
专题	成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
通讯作者	Zhang Jianhui
作者单位	1.University of Chinese Academy of Sciences, Beijing, P.R. China; 2.College of Water Conservancy and Hydropower Engineering Yaan, Sichuan Agricultural University, Yucheng, P.R. China 3.College of Life and Environment Sciences, Minzu University of China, Beijing, P.R. China; 4.School of Land and Resources, China West Normal University, Nanchong, P.R. China; 5.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences and Ministry of Water Conservancy, Chengdu, P.R. China;
推荐引用方式 GB/T 7714	Dai Jiadong,Zhang Jianhui,Zhang Zehong,et al. Effects of water discharge rate and slope gradient on runoff and sediment yield related to tillage erosion[J]. ARCHIVES OF AGRONOMY AND SOIL SCIENCE,2020:DOI:10.1080/03650340.2020.1766676.
APA	Dai Jiadong,Zhang Jianhui,Zhang Zehong,Jia Lizhi,Xu Haichao,&Wang Yong.(2020).Effects of water discharge rate and slope gradient on runoff and sediment yield related to tillage erosion.ARCHIVES OF AGRONOMY AND SOIL SCIENCE,DOI:10.1080/03650340.2020.1766676.
MLA	Dai Jiadong,et al."Effects of water discharge rate and slope gradient on runoff and sediment yield related to tillage erosion".ARCHIVES OF AGRONOMY AND SOIL SCIENCE (2020):DOI:10.1080/03650340.2020.1766676.