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在漳卫河流域山区历次遥感调查数据的基础上,通过分析区域内土壤侵蚀强度时空变化,在时间序列上明确了区域内土壤侵蚀总体变化、强度等级变化特征。结果表明:漳卫河流域山区土壤侵蚀情况明显好转,轻度以上土壤侵蚀面积逐渐减少,土壤侵蚀强度较高等级逐渐向较低等级转化,流域土壤侵蚀状况得到改善。
Based on the remote sensing survey data in the mountainous area of Zhangwei River basin, by analyzing the spatial and temporal changes of soil erosion intensity in the region, the change of soil erosion and the change of intensity level in the region were clarified in time series. The results show that the soil erosion in the mountainous area of Zhangwei River Basin is obviously improved, the soil erosion area above mildness is gradually reduced, the soil erosion intensity gradually transforms to lower level, and the soil erosion in the basin is improved.