摘要
在分析南四湖及周边地质环境条件的基础上,进行水环境质量评价,湖泊水体多属Ⅳ～Ⅴ类水,地表水水环境质量总体评价为较差—极差。湖区存在采空塌陷、地面沉降等地质灾害及湖泊泥沙淤积严重、水资源开采过度、生物多样性减少、水域面积变化过大等环境地质问题,文章对上述问题成因及现状进行了分析,对今后南四湖地质环境保护与预防工作有一定的参考意义。
The paper, based on the analysis on geological environment of the Nansi Lake and its surrounding area, undertakes the assessment on the water environment＇s quality,indicating that water quality of the Lake is between the level of IV - V and the quality of surface water is between relatively bad to very bad. According to the assessment, there are mining subsidence areas and ground subsidence areas, the Lake is coated with thick mud at the bottom, the water resources are over-exploited, the diversification of creature decreases and the surface of the Lake changes greatly. In a word, the assessment is significant to the geological environment protection and geological disaster prevention for Nansi Lake in the future.
出处
《南水北调与水利科技》
CAS
CSCD
2008年第2期20-22,共3页
South-to-North Water Transfers and Water Science & Technology
关键词
水环境质量评价
地质灾害
环境地质问题
南四湖调蓄区
assessment of the quality of water environment,geological disaster, problems of environment and geology, Nansi Lake storage area
