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机构地区:[1]河北师范大学资源与环境科学学院,河北石家庄050024 [2]河北省环境演变与生态建设实验室(河北师范大学),河北石家庄050024
出 处:《国土资源科技管理》2015年第3期118-125,共8页Scientific and Technological Management of Land and Resources
基 金:河北省社会科学基金项目(HB12YJ048);河北省高校重点学科建设项目
摘 要:以生态承载力和可持续发展理论为基础,采用综合分级评价模型,构建了河北省武安市生态承载力评价指标体系,从生态弹性力、资源环境支撑力和生态环境承载压力三方面对武安市生态承载力及其影响因素做出了评价,得知武安市22个乡镇的生态弹性力、资源环境支撑力和生态环境承载压力存在空间分异特征和不平衡性,生态承载力有两极分化的趋势。根据相关性分析,得出生态承载力与人均水资源占有量、植被覆盖度呈显著正相关关系,与水资源开发利用率、工业用地比重呈显著负相关关系,并将22个乡镇分为生态承载力有较大的支撑空间、生态承载力尚有一定的支撑空间、生态承载力极为有限三大类。Based on the theories of ecological carrying capacity and sustainable development,the evaluation index system of ecological carrying capacity in Wu'an City of Hebei Province is established through adopting the comprehensive grading evaluation model,and evaluate the factors affecting ecological carrying capacity from 3aspects,including ecosystem resilience,anchorage force of resources and environment and pressure of ecosystem.It was also learned that there exists spatial differentiation and imbalance in ecosystem resilience,anchorage force of resources and environment and pressure of ecosystem of 22 towns in Wu'an City.What's more,the ecological carrying capacity has a tendency to polarization.According to the correlation analysis,it was concluded that the correlation between ecological carrying capacity,per capita water resources,and vegetation coverage was significantly positive;and water resources development and utilization,the proportion of industrial land had a significant negative correlation relationship.In addition,22 towns were divided into three categories:ecological carrying capacity with larger supportive space,certain supportive space,and limited supportive space.
分 类 号:X22[环境科学与工程—环境科学]
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