矿坑湖健康评价与对策分析——以茂名市好心湖为例

Health Evaluation and Countermeasures Analysis of Mine Pit Lake——A Case Study of Haoxinhu Lake in Maoming

为了解典型矿坑湖的健康状况,以茂名市好心湖为研究对象,构建了“盆”“水”、生物、社会服务功能4个准则层共计19项指标的健康评价指标体系,通过资料收集及现场调查,开展健康评价。评价结果显示,该矿坑湖为二类河湖,处于健康状态。针对矿坑湖水体呈酸性、水生动物物种多样差、水生植物覆盖率偏低及局部岸坡欠稳定等主要健康问题,提出了相应治理对策,可为矿坑湖生态治理与恢复提供参考借鉴。

In order to investigate the health status of typical mine pit lakes,Haoxinhu Lake of Maoming was selected as the reasearch object for health evaluation.Based on field investigation and data collection,a health evaluation index system of 19 indicators in four normative levels of“the basin”,“the water”,biology and social service functions was established.The evaluation results show that Haoxinhu Lake is a second-class lake with a healthy state.In response to the major health problems such as acidic water quality,poor diversity of aquatic animal species,low coverage of aquatic plants and low stability of bank slope,the corresponding countermeasures are put forward,which can provide a strong reference for ecological treatment and restoration of mine pit lakes.