摘要
为了加强大兴安岭林区矿产资源开发,尤其是金属矿产开发对生态环境影响的科学研究。根据协调性、客观性、保序性筛选出水环境影响程度的指标,敏感因子4项和重要因子4项。水环境影响程度的方法:将研究区含水层富水性、构造频度、降雨量和河网密度分布图分别进行离散化,在完成预处理的空间数据库的基础上进行具体评价。通过ArcGIS软件对各指标按分级标准逐一量化,生成专题图层。再对专题指标图层进行权重加和,得到研究区矿产开发的水影响程度评价结果图层。有敏感因子存在的区域直接划分为不适宜进行矿产资源开采的区域。结果表明,在影响程度较高的区域内,水环境受到矿产资源开发活动影响较严重,应当注意保障区域水环境。对合理开发矿产资源及保护水环境具有重要的意义。
In order to strengthen the development of mineral resources in the Greater Xing′an Mountains,especially metal mineral development on ecological environment of scientific research.According coordination,objectivity,security,screening indexex of Influence Degree to Water Environment,four sensitive factors and four important factors.The method of Influence Degree to Water Environment:distributing rich water aquifer,structure frequency,rainfall and drainage density,it evaluat on completion of the pretreatment of spatial databases.Each quantizating of index grading standards by ArcGIS,generate thematic layers,then weighted and added of thematic index layers.Obtaining the evalute distribution of exploiting mineral resources on influence degree with water environment.The area with Sensitive factors is divided into unsuitable for direct exploitation of mineral resources.The results show,In a higher degree of influence within the region,water environment affected more serious by exploiting mineral resources,it should be noted safeguard regional water environment.It is of significance to exploiting mineral resources rationally and protecting water environment.
作者
姜慧琴
史俊平
Jiang Huiqin;Shi Junping(Inner Mongolia Geological Survey Research Institute,Hohhot Inner Mongolia 010011,China)
出处
《环境与发展》
2022年第7期23-27,共5页
Environment & Development
关键词
大兴安岭矿区
矿产资源开发
水环境
影响程度
The Greater Khingan Mountains forest region
Development of mineral resources
Water environmental
Influence degree
