Evaluating the effects of changes in landscape structure on soil erosion by water and tillage

被引：453
作者：
Van Oost, K [1 ]
Govers, G [1 ]
Desmet, P [1 ]
机构：
[1] Katholieke Univ Leuven, Lab Expt Geomorphol, B-3000 Louvain, Belgium
来源：
LANDSCAPE ECOLOGY | 2000年 / 15卷 / 06期
关键词：
field boundary; land use; soil erosion; tillage; WATEM;
D O I：
10.1023/A:1008198215674
中图分类号：
Q14 [生态学（生物生态学）];
学科分类号：
071012 ; 0713 ;
摘要：
Landscape structure, or the spatial organization of different land units, has an impact on erosion and sedimentation on agricultural land. However, current erosion models emphasize the temporal, and less the spatial, variability of relevant parameters so that the effects of changes in landscape structure have hitherto not been studied in detail. Therefore, a spatially distributed water and tillage erosion model that allows the incorporation of landscape structure is presented. The model is applied to three study sites in the Belgian Loam Belt where significant changes in landscape structure occurred over the last fifty years. Erosion rates were shown to change by up to 28% however, with decreases as well as increases occurring. These could be explained by the interaction of changes in land use with changes in the position of field boundaries. Thus, landscape structure is an important control when the effect of environmental change on erosion risk is to be assessed.
引用
收藏
页码：577 / 589
页数：13
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