Effect of rainfall regime and slope on runoff in a gullied loess region on the Loess Plateau in China

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室 > 滨海湿地实验室

	Effect of rainfall regime and slope on runoff in a gullied loess region on the Loess Plateau in China
	Fang, H. Y.1,2; Cai, Q. G.1; Chen, H.1; Li, Q. Y.3
刊名	ENVIRONMENTAL MANAGEMENT
	2008-09-01
卷号	42 期号:3 页码:402-411
关键词	Gullied Loess Region Loess Plateau Scale Effect Rainfall Regime Runoff Coefficient Slope Length Slope Gradient
ISSN号	0364-152X
通讯作者	Cai, QG, Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
产权排序	Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc;Grad Univ Chinese Acad Sci;Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev
文献子类	Article
英文摘要	Runoff was measured from seven plots with different slopes nested in Tuanshangou catchment on the Loess Plateau to study effect of slopes on runoff in relation to rainfall regimes. Based on nine years of field observation and K-mean clusters, 84 rainfall events were grouped into three rainfall regimes. Rainfall regime A is the group of events with strong rainfall intensity, high frequency, and short duration. Rainfall regime C consists of events with low intensity, long duration, and infrequent occurrence. Rainfall regime B is the aggregation of events of medium intensity and medium duration, and less frequent occurrence. The following results were found: (1) Different from traditional studies, runoff coefficient neither decreased nor increased, but presented peak value on the slope surfaces; (2) For individual plot, runoff coefficients induced by rainfall regime A were the highest, and those induced by rainfall regime C were the lowest; Downslope, the runoff coefficients induced by three rainfall regimes presented the same changing trend, although the peak value induced by regime A occurred on a shorter slope length compared to those by regime B and C; (3) Scale effect on runoff induced by rainfall regime A was the least, and that induced by rainfall regime C was the largest. These results can be explained by the interactions of crusting, soil moisture content, slope length and gradient, and erosion units, etc., in the context of different rainfall regimes.
学科主题	Environmental Sciences
URL标识	查看原文
WOS关键词	HORTONIAN OVERLAND-FLOW ; WESTERN NIGERIA ; SOIL-EROSION ; LABORATORY EXPERIMENTS ; CRUST DEVELOPMENT ; TILLAGE METHODS ; SURFACE RUNOFF ; INFILTRATION ; LENGTH ; SCALE
WOS研究方向	Environmental Sciences & Ecology
语种	英语
WOS记录号	WOS:000258562100004
资助机构	National Natural Science Foundation of China [40635027, 30671721]; Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences [066U0104SZ]
公开日期	2011-07-05
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/3589]
专题	烟台海岸带研究所_滨海湿地实验室
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 2.Grad Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai 264003, Peoples R China
推荐引用方式 GB/T 7714	Fang, H. Y.,Cai, Q. G.,Chen, H.,et al. Effect of rainfall regime and slope on runoff in a gullied loess region on the Loess Plateau in China[J]. ENVIRONMENTAL MANAGEMENT,2008,42(3):402-411.
APA	Fang, H. Y.,Cai, Q. G.,Chen, H.,&Li, Q. Y..(2008).Effect of rainfall regime and slope on runoff in a gullied loess region on the Loess Plateau in China.ENVIRONMENTAL MANAGEMENT,42(3),402-411.
MLA	Fang, H. Y.,et al."Effect of rainfall regime and slope on runoff in a gullied loess region on the Loess Plateau in China".ENVIRONMENTAL MANAGEMENT 42.3(2008):402-411.