Considering spatial distribution and deposition of sediment in lumped and semi-distributed models

被引：37
作者：
Lenhart, T
Van Rompaey, A
Steegen, A
Fohrer, N
Frede, HG
Govers, G
机构：
[1] Univ Giessen, Inst Nat Resources Management, Giessen, Germany
[2] Katholieke Univ Leuven, Lab Expt Geomorphol, Louvain, Belgium
来源：
HYDROLOGICAL PROCESSES | 2005年 / 19卷 / 03期
关键词：
sediment; deposition; sediment delivery ratio; distributed model; SWAT;
D O I：
10.1002/hyp.5616
中图分类号：
TV21 [水资源调查与水利规划];
学科分类号：
081501 ;
摘要：
The goal of this paper is to test a new semi-lumped sediment delivery concept to consider deposition. With this method, the distance between sediment source and river channel is taken into account. It is based on the assumption that sediment delivery rates (SDR-values) are related to the length of the flow path of the sediment from source area to channel. For each subwatershed an average weighted distance to the river channel can be calculated whereby cells with little or no soil erosion have a high weight. The procedure was implemented in SWAT-G (Soil and Water Assessment Tool) and calibrated and validated for two watersheds in Belgium and Germany. The results point out that the proposed method is a significant improvement of the sediment routine compared to existing lumped equations such as the MUSLE. Copyright (C) 2005 John Wiley Sons, Ltd.
引用
收藏
页码：785 / 794
页数：10
相关论文
共 37 条
[1]   Large area hydrologic modeling and assessment - Part 1: Model development [J].
Arnold, JG ;
Srinivasan, R ;
Muttiah, RS ;
Williams, JR .
JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION, 1998, 34 (01) :73-89
[2]  
BAFFAUT C, 2001, J AM WATER RESOURCES
[3]  
DeRoo APJ, 1996, HYDROL PROCESS, V10, P1021, DOI 10.1002/(SICI)1099-1085(199608)10:8&lt
[4]  
1021::AID-HYP407&gt
[5]  
3.0.CO
[6]  
2-I
[7]  
DEROO APJ, 2000, HYDROLOGICAL APPL GI
[8]  
Desmet PJJ, 1997, EARTH SURF PROC LAND, V22, P563, DOI 10.1002/(SICI)1096-9837(199706)22:6<563::AID-ESP713>3.0.CO
[9]  
2-3
[10]   SWAT-G, a version of SWAT99.2 modified for application to low mountain range catchments [J].
Eckhardt, K ;
Haverkamp, S ;
Fohrer, N ;
Frede, HG .
PHYSICS AND CHEMISTRY OF THE EARTH, 2002, 27 (9-10) :641-644
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