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以RS和GIS技术为支撑,利用修正的土壤流失方程(RUSLE)定量评估锦州市2010年水土流失量和土壤侵蚀强度,并对锦州市水土流失空间分布特征进行分析。结果表明,锦州市2010年土壤侵蚀面积为7284.87 km2,占锦州市总面积的70.72%,平均土壤侵蚀模数为18.27 t/(hm2·年),属于轻度侵蚀;15°~25°和6°~15°2个坡度带是研究区土壤侵蚀的主要发生区域。锦州市土壤侵蚀主要发生在农村居民点和旱地2种土地类型,二者的侵蚀量占锦州市2010年总侵蚀量的60.97%。未来应加大对这2种土地类型的治理力度,将其列为水土保持重点治理对象。该研究可为政府制定水土保持的相关政策提供科学依据。
Based on RS and GIS technologies, the revised soil loss equation (RUSLE) was used to quantitatively evaluate the amount of soil and water loss and erosion intensity in 2010 in Jinzhou City. The spatial distribution of soil erosion in Jinzhou City was also analyzed. The results showed that the area of soil erosion in Jinzhou in 2010 was 7284.87 km2, accounting for 70.72% of the total area of Jinzhou City. The average soil erosion modulus was 18.27 t / (hm2 · year) Two slopes of ° ~ 15 ° are the main areas of soil erosion in the study area. Soil erosion in Jinzhou mainly occurred in two types of rural residential land and dry land, accounting for 60.97% of the total erosion in 2010 in Jinzhou City. In the future, we should intensify the harnessing of these two types of land and list it as the key governance object of soil and water conservation. This research can provide a scientific basis for the government to formulate the related policies of soil and water conservation.