车河-拉么矿区环境自净能力研究

通过广西河池市南丹县车河-拉么矿区的大气自净能力、水体自净能力、植被自净能力和土壤自净能力的分析,揭示了该矿区由于大气稳定度差、风速小、静风频率高、工业区形成热岛效应等,因而大气自净能力低;矿区水体物理自净能力很强,生物自净能力很弱、化学自净能力由于多数金属离子进入水体,因而沿河水体、土壤、地下水都有污染,且上游、缓流处、河道拐弯处污染较为严重。矿区植被拦截能力弱,转移能力强。矿区土壤对重金属吸附能力强、自净能力差,易形成严重污染。从而解释了为什么矿区达标排放却还是产生严重污染的原因,也为宏观决策和环境治理提出了科学根据。

Research about CHE HE-LA ME mine environmental self-purification capacity

Through analyzing Self-purification capacity pull the Mody mine atmosphere, water self-purification ability of vegetation self-purification ability and soil self-purification capacity in CHE HE-LA ME mine ,Nandan County, Hechi City, Guangxi; reveals the mine the self-purification capacity of the atmosphere is low due to poor atmospheric stability, wind speed, high frequency of calm winds, the industrial zone to form the heat island effect, physical self-purification capacity of the mine water is strong, biological self-purification capacity is weak,chemical self-purification capacity due to the majority of metal ions into the body of water, so the river water, soil, groundwater has a pollution, and the upstream slow flow at river bend is more polluted, vegetation interception capacity is weak, transfer ability is strong,the mining soil of heavy metal adsorption capacity is strong, self-purification capacity is poor, it＇s easy to form a serious pollution, so to explain the reasons why mine discharge standards or causes severe pollution, scientific basis for macroeconomic policy-making and environmental governance.