SEDIMENT DELIVERY PROCESSES AT BASIN-SCALE

被引：191

作者：

FERRO, V ^{[1
]}

MINACAPILLI, M ^{[1
]}

机构：

[1] UNIV PALERMO,FAC AGR,DIPARTIMENTO EITA,I-90128 PALERMO,ITALY

来源：

HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES | 1995年 / 40卷 / 06期

关键词：

D O I：

10.1080/02626669509491460

中图分类号：

TV21 [水资源调查与水利规划];

学科分类号：

081501 ;

摘要：

Since eroded sediments are produced from different sources distributed throughout a basin, sediment delivery processes at basin scale have to be modelled by a spatially distributed approach. In this paper a new theoretically based relationship is proposed for evaluating the sediment delivery ratio, SDR(i), of each morphological unit, i, into which a basin is divided. Then, using the sediment balance equation written for the basin outlet, a relationship between the basin sediment delivery ratio, SDR(w) and the SDR(i) is deduced. This relationship is shown to be independent of the soil erosion model used. Finally, a morphological criterion for estimating a coefficient, beta, is proposed.

引用

页码：703 / 717

页数：15

共 20 条

[11]

Moore I.D., Burch F.J., Physical basis of the length-slope factor in the universal soil loss equation, Soil Sci. Soc. Am. J., 50, pp. 1294-1298, (1986)

[12]

Moore I.D., Wilson J.P., Length-slope factors for the revised universal soil loss equation: Simplified method of estimation, J. Soil Water Conserv., 47, 5, pp. 423-428, (1992)

[13]

Renard K.G., Foster G.R., Yoder D.C., McCool D.K., Rusle revisited: Status, questions, answers and the future, J. Soil Water Conserv., 49, 3, pp. 213-220, (1994)

[14]

Renfro W.G., Use of erosion equation and sediment delivery ratios for predicting sediment yield, Present and Prospective Tecnology for Predicting Sediment Yields and Sources, pp. 33-45, (1975)

[15]

Richards K., Sediment delivety and the drainage network, Channel Network Hydrology, pp. 221-254, (1993)

[16]

Roehl J.E., Sediment source areas-, delivery ratios and influencing morphological factors, Commission of Land Erosion, pp. 202-213, (1962)

[17]

Walling D.E., The sediment delivery problem, J. Hydrol., 65, pp. 209-237, (1983)

[18]

Williams J.R., Bemdt H.D., Sediment yield computed with universal equation, J. Hydraul. Engng ASCE, 98, 2, pp. 2087-2098, (1972)

[19]

Williams J.R., Sediment delivery ratios determined with sediment and runoff models, Erosion and Solid Matter Transport in Inland Waters, pp. 168-179, (1977)

[20]

Wischmeier W.H., Smith D.D., Predicting Rainfall Erosion Losses from Cropland East of the Rocky Mountains, (1965)

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