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作 者:池芳春[1]
机构地区:[1]西京学院,陕西西安710123
出 处:《湿地科学与管理》2015年第4期56-59,共4页Wetland Science & Management
基 金:陕西省教育厅2013年科学研究计划(人文社科专项)项目(2013JK0158)
摘 要:渭河流域槐芽湿地存在水污染立体叠加现象。小城镇的生活污水未经处理,形成点状污染;生活污水排入清水河,演化为严重的线性污染;被污染的清水河因被人工改道,水流受到阻滞,向附近大面积耕地漫溢,造成面状污染。面状污染20余年,累积了大量污染物,对相对较浅的地下水造成污染,空气质量下降,演化为立体污染。综合立体污染威胁附近居民的生命健康与商品粮安全。建设美丽渭河与生态湿地,必须清除点状污染源,阻止小城镇向河道排污,防止清水河河道漫溢,阻止污染物向地下水与空气中扩散,使当地居民健康生活。Water pollution in Huaiya Wetland in Weihe river basin was resulted from three-dimensional overlapping. Sewage water from small towns was not treated, forming point pollution; the sewage water was discharged into clear water river to form serious linear pollution; artificial diversion of the contaminated clear water river caused blocking of water flow and led to flooding of nearby farmland, causing area pollution; more than 20 years of area pollution accumulated a large amount of pollutants, causing pollution of groundwater relatively shallow, coupled with deterioration of air quality, leading to three-dimensional pollution. The integrated three-dimensional pollution imposes threat to food security and the lives of people nearby. Building a beautiful Weihe River and an ecological wetland, the point pollution sources need to be removed, prevent the discharge of sewage water from small towns to the river and prevent flooding of the polluted clear water rivers, blocking the spread of pollutants to the groundwater and the air, therefore to provide healthy living conditions for local residents.
分 类 号:X52[环境科学与工程—环境工程]
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