摘要
结合基于土地利用、土壤类型等的地理信息数据和流域水文、气象资料,应用SCS水文模型,在GIS环境下模拟了广西钦江流域2000—2010年间土地利用变化及其对地表径流深度的影响。结果表明:土地利用动态变化主要表现为林地、工矿及居民点、道路交通用地、水域面积的增加,耕地、草地面积的减少。土地利用结构的变化使得地表径流深度也会发生变化,在假设降水量一致的情况下,10年间钦江流域平均地表径流深度增加了0.703 mm。
Based on geographic information data of land use and soil classification,hydrology and meteorology data,land use change and impact of land use change on depth of surface runoff of Qinjiang River basin in Guangxi during the period of 2000-2010 was analyzed by using the SCS hydrological model under the environment of GIS.The results show that the dynamic change of land use have make the increase of the areas of forest land,industrial and mining area,residential points,road traffic,water and the decrease of farmland,grassland.The change of land use pattern will make the depth of surface runoff change.Supposing under the same precipitation condition,the average depth of surface runoff of the river basin has increased 0.703 mm in the 10 years.
出处
《中国水土保持》
2013年第6期34-38,77,共5页
Soil and Water Conservation in China
基金
教育部科学技术研究重点项目(210167)
广西教育厅项目(201106LX297)
