陕北能源化工基地生态脆弱性评价

研究陕北能源化工基地生态脆弱性等级,对生态环境保护具有指导作用。从自然成因、社会成因和经济成因3个方面选取12个指标构建了生态脆弱性评价指标体系。利用DARE法和生态脆弱度对其评价指标进行加权分析计算,建立了4个等级生态脆弱性。结果表明,基地生态系统运行状况较差,大部分地区属于较强度生态脆弱区。分析了基地生态环境脆弱性的驱动力、发生机制和主要影响因子,提出了生态治理的重点方向,为该地区生态可持续发展提供参考。

Appraisal of ecological vulnerability in the Northern energy industry base of Shanxi Province

Northern energy industry base of Shanxi Province of ecological vulnerability level were studied,with guidance on the ecological and environmental protection.From natural causes,social causes and economic causes of the starting three selected 12 indicators to build the ecological vulnerability assessment index system.The system consists of four grades by DARE（decision alternative ratio evaluation） method and weighted ecological frangibility degree in evaluation index.Results show that on the base of poor ecosystem health,most areas are in a strong degree of ecologically fragile areas.Then further analysis of the fragile ecological environment of the base and the driving force,the mechanism and the main impact factors,made the focus of ecological control direction of ecologically sustainable development in the region to provide a reference.