【摘要】 为了研究老河坝磷矿区水化学特征及水质现状,采用Piper三线图和统计学方法研究了水化学特征,采用熵权密切值法对矿区地表水、地下水和矿坑水进行了水质综合评价,并与综合指数法评价结果进行了对比。结果表明:不同化学指标在不同水体中具有不同的浓度含量与统计特征,但水化学类型较稳定,为HCO3-Ca.Mg型或HCO3-Ca型水,表现出典型的补给区水化学类型。水质综合评价表明矿区现状水质达到良好-优良级别,适于饮用,建议采用地表水和地下水作为矿区供水水源。但在矿山开采后,矿区水环境会受到一定程度的影响,需采取一定的保护措施,防治矿区水质污染。更多还原

【Abstract】 The paper presents the assessment for hydrochemical characteristics with Piper diagram and statistical methods to assess the impacts of mining on the water quality and water environment.The entropy weighted osculating value method is also used to assess the water quality in the study area.Results indicate that statistical characteristics of various indices are different in different water bodies.The concentrations of indicators of water bodies rely on the environment where water bodies lie.The main water chemistry type is HCO3-Ca·Mg or HCO3-Ca type,which indicates the excellent conditions of recharge area for water runoff.Water quality assessment shows that the water quality in the study area lies between good quality and excellent quality conditions which is suitable for drinking.However,protective measures are needed for water quality protection,for the mining activities would have great impacts on the water quality.更多还原