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利用彰武县境内柳河所辖小流域2000年及2004年土壤风蚀遥感解译数据,分析了该区域土壤风蚀空间分布及时间变化特征。结果表明:2000年及2004年共有13条小流域土壤风蚀面积比例大于50%;2000年及2004年分别有17条小流域风蚀类型全部为轻度,其余为轻度与中度各占一定比例;总体上该区域风蚀面积比例呈下降趋势,风蚀程度呈减轻趋势。
Based on the data of soil erosion and wind erosion in small watershed under Liuhe River in 2000 in Zhangwu County and 2004, the spatial distribution of wind erosion and its temporal variation characteristics are analyzed. The results showed that the proportion of wind erosion in 13 small watersheds was more than 50% in 2000 and 2004. The wind erosion types in 17 small watersheds in 2000 and 2004 were all mild, and the rest were mild and moderate In general, the proportion of wind erosion area in this area showed a downward trend and the wind erosion showed a decreasing trend.