矿区生态系统稳定性评价——以淮南煤矿区为例

从生态系统稳定与干扰指标两个方面构建矿区生态环境质量指标体系,并运用层次分析法和熵技术修正确定各指标权重,提出大型矿区生态质量评价模型和生态质量评价标准,以淮南煤矿区为例,运用RS和GIS技术,分析了淮南矿区近30年的生态环境质量变化。结果表明,研究区生态环境质量处于下降趋势,主要由于城镇化的快速发展、煤炭开采的继续、环境保护措施不得力以及复垦地区的二次塌陷、治理标准低等原因所导致。

Stability Evaluation of Ecosystem in Mining Area:Taking Huainan Mining Area as An Example

From ecosystem stability and disturbance index, the index system for ecological environment quality in mining ar-eas was established and modified to obtain the weight of each index by the analytic hierarchy process and entropy technolo-gy, accordingly the evaluation model and evaluation standard of ecological quality in large mining areas were proposed, and then taking Huainan coal mining area as an example, using RS and GIS technologies to analyze the ecological environment quality changes of Huainan mining area in last 30 years. The results showed that the ecological environment quality in Huainan coal mining area still declined mainly due to the rapid growth of urbanization, accelerated speed of coal mining, not timely environmental protection, secondary collapse in reclamation areas, and low governance standards, etc.