The Study On The Sensitiveness And Distribution Of Soil Corrodes In Hebei Province

On the basis of job of ecological function zoning of Hebei province, this text focuses on and corrodes the sensitiveness and carries on research to the soil of Hebei province, analyze its grading emphatically, and divide the whole province into five corrode sensitiveness zone. This job has offered certain basis for formulation of the important decision in Hebei province, have realistic meanings to the improvement of the environment of Hebei province.First of all, this text has introduced the influence factors in detail; confirm the important erosion factors which are Precipitation, soil quality, slope, type of the vegetation and wind speed. This text takes the analytical method of the single factor at first, by giving score to every factor, drawing out the influence from every factor in Hebei province; though giving a mark by experts to the factors; we can get weight of every factor.Secondly, through the comprehensive analytic approach, multiplying the value and weight of every factor, according to the standard of soil erosion dividing, by the technology of Arc-info, we can get the distribution and grading of soil erosion in Hebei province.Finally , according to the similar and difference of the driving force of the sensitiveness of soil erosion, confirm the sensitiveness zone of soil erosion in Hebei province .There are Bashang area, Yanshan mountain area , northwest Hebei mountain basin area , Taihang mountain area and plain area. On this basis, according to the similar and difference of the driving force, we can divided the northwest of Hebei and Yanshan mountain area into five inferior districts further.In the course of this studies, take the platform with GIS technology, we used such advanced technological means as Arc-view, Arcinfo, etc, compared with traditional method, have improved the working efficiency and precision greatly.