摘要
以兰州市西固区为研究区域,以地块属性信息为单元,以行政村为基本单位进行统计,采用定性分析与定量分析相结合的方法,对县级城市型水土保持区划的原则、指标(标准)进行了研究,确定了地貌特征、水土流失防治体系、土地开发利用方向、多年平均降水量、人口密度、林草覆盖率、水土流失面积占总面积百分比等作为划分各水土保持分区的指标。通过对地块属性的统计与水土保持功能的对比分析,将西固区划分为南缘生态维护区、南部蓄水保土区、北部保土减沙区、中部人居环境维护区4个六级区,确定了各功能区水土流失防治体系布局、土地利用方向,为西固区水土保持规划及水土流失防治体系的布局提供了科学依据。
The paper conducted statistics by taking Xigu District of Lanzhou City as studied area,area attribute information as unit and administrative village as a basic unit. It studied the principles and indexes( criterions) of soil and water conservation zoning of county-level urban type and determined the indexes used for soil and water conservation zoning,including landform feature,soil and water loss prevention and control system,land use and development orientation,mean annual precipitation,population density,forest and grassland coverage rate and percentage of soil and water loss area by using the combined method of qualitative and quantitative analysis. Through comparative analysis between the statistics of the area property and the function of soil and water conservation,it divided Xigu District into four six-level areas of southern margin ecological maintenance area,south soil and water conservation area,north soil conservation and sediment reduction area and middle living environment maintenance area,determined the orientation of layout of soil and water loss prevention and control system and land use of each function area and provided scientific basis for the layout of soil and water loss prevention and control system and soil and water conservation planning of Xigu District.
出处
《中国水土保持》
2017年第5期59-63,共5页
Soil and Water Conservation in China
基金
国家自然科学基金项目(41571051)
兰州市西固区水土保持"十三五"规划项目
关键词
城市型
水土保持区划
兰州市西固区
urban type
soil and water conservation zoning
Xigu District of Lanzhou City
