摘要
以修正的通用土壤流失方程为基础,运用RS和GIS技术计算昆明市水源地牧羊河流域的土壤侵蚀模数及土壤侵蚀总量,采用转移矩阵方法分析了1992—2010年不同土壤侵蚀强度的面积变化、土壤侵蚀总量的时间变化及土壤侵蚀强度的空间变化。研究结果表明,流域土壤侵蚀强度不大,以微度侵蚀和轻度侵蚀为主,土壤侵蚀总量呈先增大后减小的趋势。
The paper calculated the soil erosion modulus and the total amount of soil erosion of Muyanghe watershed which is the headwater area of Kunming Municipality based on revised universal soil loss equation and by using RS and GIS technology.It analyzed the area variation of soil erosion intensity,temporal variation of total amount of soil erosion and spatial variation of soil erosion intensity in the period of 1992~2010 by using transfer matrix method.The outcomes show that the soil erosion intensity of the watershed is not great,mainly belongs to tiny erosion and light erosion and the total amount of soil erosion shows the tendency of increasing at the beginning and decreasing later.
出处
《中国水土保持》
2012年第9期57-59,77,共3页
Soil and Water Conservation in China
基金
水利部公益性项目(201001058)
关键词
水源地
土壤侵蚀
时空变化
转移矩阵
牧羊河流域
headwater area
soil erosion
temporal and spatial variation
transfer matrix
Muyanghe watershed
