基于像元尺度的移民区资源承载力评价模型及应用--以宁夏红寺堡区为例

目的]利用GIS技术从社会经济发达度和可利用资源两方面构建基于像元尺度的资源承载力综合评价模型。方法]监测局部区域的资源承载力状况并分析空间变化趋势,以红寺堡区为例研究其资源承载力状况。结果]红寺堡区资源承载力存在明显的区域差异,中部地区承载力较高,南部地区承载力较低,符合红寺堡区资源开发与利用现实状况。结论]基于像元尺度的资源承载力评估模型能够将评价单元细化到像元尺度,有利于弥补传统评价方法无法反映区域内部异质性的不足。

Assessment Model for Resource Carrying Capacity in Immigrant Area Based on Pixel Scale and Its Application---A Case Study of Hongsibao Region in Ningixia

Objective] The comprehensive evaluation model for resource carrying capacity based on pixel scale was constructed from two as-pects of economic development degree and available resource by using GIS technology.Method] The status of resource carrying capacity in local region was monitored and spatial variation trend was analyzed.With Hongsibao Region as example, resource carrying capacity was stud-ied.Result] There were significant regional differences, the carrying capacity of the central region was higher and southern region was lower, which is in accordance with the reality of resource development and utilization in Hongsibao Region.Conclusion] Resource carrying capacity evaluation model based on pixel scale can refine evaluation unit, which is conducive to make up for the deficiency that the traditional evalua-tion method can’t reflect the regional internal heterogeneity.