辽宁省生态承载力空间分异及其影响因素分析

在阐述区域生态系统承载机制的基础上,构建了区域生态承载力评价指标体系,运用状态空间法研究了辽宁省地市尺度的生态承载力空间分异。结果表明:辽宁省可分为四个生态承载状况类型区:适度可载区、轻度超载区、中度超载区和重超载区,生态承载状况在整体上呈现沿海和内陆的分异;地市间生态潜力的差异是生态承载状况分异的主要驱动因素;环境治理水平、经济发展质量和人口压力是分异的主要影响因素。

Analysis of spatial difference of ecological carrying capacity and its influencing factors in Liaoning Province

Spatial difference of ecological carrying capacity(ECC) in Liaoning Province in 2009 was studied using the state space method in this paper.Firstly,based on the carrying relationship between sociometric activity and economic-social-environmental comprehensive system,we constructed an evaluation index system of ECC;then,ecological carrying states in Liaoning Province were measured using the state space method;and based on these,we studied the spatial difference of ECC in Liaoning Province;finally,we explored the causes of these differences.The results are as follows:(1) Liaoning Province is divided into 4 grades by status of ECC: moderate non-full region,mild overloading region,middle overloading region and serious overloading region.(2) There is an obvious spatial difference in ECC between the coastal and inland cities.(3)Differences of ecological carrying potential are the main reason of spatial difference;and differences of environmental protection level,economical development quality and population pressure among cities have a significant influence on spatial disparity of ECC.