定西市域生态环境质量现状评价与发展途径

Evaluation and Development Path of Ecological Environmental Quality Situation in Dingxi City

通过对定西市生态环境系统演变和生态适宜性特征进行分析,对全市生态环境质量开展了监测评价,从生物丰度指数、植被覆盖指数、水网密度指数、土地胁迫指数、污染负荷指数等方面分别评价了全市生态环境状况变化情况,结果表明:全市生态质量总体表现为“一般”水平。并从规划定位、生态建设、水土保持、财力投入、环保措施、绿色产业及制度保障等方面提出了改善定西市生态环境质量的相关建议。

Through the summary of the evolution of the ecological environment system and the characteristics of ecological suitability in Dingxi City,the city's ecological environment quality was monitored,evaluated and analyzed.The changes of the city's ecological environment were evaluated from the aspects of biological abundance index,vegetation coverage index,water network density index,land stress index,pollution load index,etc.The overall ecological quality of the city is“ordinary”.The development approaches to improve the ecological environment quality of the city are proposed from the aspects of planning orientation,ecological construction,water and soil conservation,financial investment,environmental protection measures,green industry and system guarantee.