摘要
[目的]评价罗平县资源环境承载力。[方法]基于罗平县的实际情况,从资源条件、环境条件和社会经济条件3个方面选取14项指标构建评价指标体系,利用全局主成分分析方法对2005—2014年罗平县的资源环境承载力进行动态评价,并根据主成分分析结果确定影响其承载力的关键因素。[结果]对罗平县资源环境承载力影响较大的是资源及环境因素;罗平县10年来各乡(镇)资源环境承载力在时序上总体呈上升趋势,各乡(镇)间的资源环境承载力空间差异较明显,差异呈减小趋势。[结论]采用的全局主成分分析法将时间序列加入到评价体系中,实现了资源环境承载力动态分析的统一性和整体性,并保证了系统分析的可比性。评价结果可为研究区资源环境合理开发利用提供理论依据。
[Objective] The aim was to evaluate dynamics of resources and environment carrying capacity in Luoping County. [Method]Based on the actual situation of Luoping County,selecting 14 indicators from resource conditions,environmental conditions and social economic conditions to built evaluation index system,using the method of global principal components analysis,the dynamic evaluation was conducted on resources and environment bearing capacity of ten years（ 2005-2014） in Luoping County,and according to the result of principal component analysis to determine the bearing capacity of the key factors. [Result]The resource conditions and environmental conditions had a greater influence on the resources and environment bearing capacity of Luoping County; resources and environmentbearing capacity in 10 years showed overall rising trend,resources and environment bearing capacity had obvious spatial differences among villages（ towns）,the gap was decreased. [Conclusion] This article uses the global principal component analysis（ GPCA） to introduce time sequence into the evaluation system,realizes the unity and wholeness of dynamic analysis,and guarantees thecomparability of system analysis. The evaluation results can provide a certain theoretical basis for rational development,utilization and protection of resources and environment in the study area.
出处
《安徽农业科学》
CAS
2016年第32期43-46,52,共5页
Journal of Anhui Agricultural Sciences
基金
云南大学资源环境与地理科学学院学院制建设专项"云南边疆少数民族地区山地城镇建设土地开发利用模式研究"(2013CK003)
关键词
全局主成分分析
资源环境承载力
动态评价
罗平县
Global principal component analysis
Resources and environment carrying capacity
Dynamic evaluation
Luoping County
