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基于修正的通用土壤流失方程RUSLE和GIS技术,结合绥化市的自然地理环境特征,分别计算了影响土壤侵蚀的各种因子,获取了绥化市2004年土壤侵蚀现状图,并对各区县以及不同土地利用类型的土壤侵蚀状况进行了统计,结果表明:绥化市土壤侵蚀以轻度为主,共有16083.9 km2,占46.34%,中度侵蚀面积共有1583.52 km2,占4.56%;轻度侵蚀集中连片分布,而中度以上侵蚀主要分布在河流沿岸的河流阶地与河漫滩过渡地带;兰西和青冈两个地区是土壤侵蚀面积最大的地区,而望奎、北林和海伦三个地区是中度以上土壤侵蚀的面积最大的;土地利用类型中以旱田土壤侵蚀最严重,面积也最大,未利用地主要表现为中度以上土壤侵蚀,林地和草地以轻度侵蚀为主。
Based on the modified universal soil loss equation RUSLE and GIS technology and the characteristics of natural geographical environment in Suihua City, various factors affecting soil erosion were calculated and the map of soil erosion in Suihua City was obtained in 2004. The results show that the soil erosion in Suihua City is slight, with a total area of 16,083.9 km 2, accounting for 46.34%. The moderate erosion area is 1583.52 km 2, accounting for 4.56%. The slight erosion concentrates contiguous distribution , While the moderately eroded soil is mainly distributed in the river terraces and floodplain transitional areas along the river; Lanxi and Cyclobalanopsis glauca are the areas with the largest soil erosion, while the Wangkui, Beilin and Helen areas are moderately above soil erosion The area of land use is the largest with the highest soil erosion and the largest area. The unutilized land is mainly characterized by medium and above soil erosion, while the woodland and grassland are dominated by mild erosion.