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	Scale effect on sediment yield from sloping surfaces to basins in hilly loess region on the loess plateau in china
	Fang, Haiyan; Chen, Hao; Cai, Qiangguo; Li, Qiuyan
刊名	Environmental geology
	2007-04-01
卷号	52期号:4页码:753-760
关键词	Hilly loess region Loess plateau Mean annual specific sediment yield Drainage area Flow shear force Drainage density
ISSN号	0943-0105
DOI	10.1007/s00254-006-0513-9
通讯作者	Chen, hao(haochenshd@126.com)
英文摘要	Based on data from two runoff plots and ten stations in hilly loess region dalihe drainage basin ranging in area from 0.0006 to 3983 km(2) on the loess plateau, the relationship between mean annual specific sediment yield (y-s) and drainage area (a) is studied, which is different from those for many other drainage areas of the world, neither at the scale of whole basin nor at local scale on the loess plateau. with increasing drainage area, the mean annual specific sediment yield experiences two peak values: the first peak value appears at 0.00408 km(2) in area corresponding to the whole slope surface, and the second peak value appears at 96.1 km(2) stop in area. the non-linear variation in the y-s-a can be explained as follows: the first peak value can be explained by the abrupt increase in slope gradient and flow shear stress resulting in highly increased sediment concentration and specific sediment yield. and the second peak value can be explained by the combined influence of flow shear stress and drainage density, represented by dimensionless variable omega.
WOS关键词	SOIL-EROSION ; GULLY EROSION ; YELLOW-RIVER ; CATCHMENT ; FLUX
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000246095500016
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2382374
专题	中国科学院大学
通讯作者	Chen, Hao
作者单位	1.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Fang, Haiyan,Chen, Hao,Cai, Qiangguo,et al. Scale effect on sediment yield from sloping surfaces to basins in hilly loess region on the loess plateau in china[J]. Environmental geology,2007,52(4):753-760.
APA	Fang, Haiyan,Chen, Hao,Cai, Qiangguo,&Li, Qiuyan.(2007).Scale effect on sediment yield from sloping surfaces to basins in hilly loess region on the loess plateau in china.Environmental geology,52(4),753-760.
MLA	Fang, Haiyan,et al."Scale effect on sediment yield from sloping surfaces to basins in hilly loess region on the loess plateau in china".Environmental geology 52.4(2007):753-760.

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