滇东北山区坡耕地水土流失与可持续利用图的基本内容与编制方法

THE BASIC CONTENTS OF SOIL EROSION AND SUSTAINABLE USE MAP OF SLOPING CULTIVATED LAND AND ITS COMPILING METHOD IN THE NORTHEAST MOUNTAIN REGION OF YUNNAN PROVINCE

坡耕地水土流失与可持续利用图是综合表示滇东北山区各个坡耕地单元的水土流失状况及其可持续利用的专题地图。该图表示的基本内容是坡耕地类型、土壤类型、坡度级别、侵蚀强度、可持续利用程度、合理利用方向与措施。以土壤流失方程为基础，应用地理信息系统编制了该图。该图的编制为治理本区坡耕地水土流失、合理利用坡耕地资源提供了科学依据。

Soil erosion and sustainable use map of sloping cultivated land is a special map of showing comprehensively the status of soil erosion of every sloping cultivated land unit and its sustainable use in the northeast mountain region of Yunnan province.The basic contents shown in this map are sloping cultivated land types,soil types,topographical slope classes,the grades of soil erosion intensity,the classes of sustainable use degree,and the rational use types and measures. Taking newly developed soil loss equation of sloping cultivated land in the northeast mountain region of Yunnan province as a basis,and using MAP GIS,the map was compiled.The compilation of this map provided scientific basis for controlling soil erosion of sloping cultivated land and its rational utilization in the region.