上海市郊中小河流水污染现状及对策

为了研究高速发展地区地表水环境状况及主要影响因子,以上海郊区青浦香花桥镇为例,对该地中小河流水环境质量进行了长期监测。结果表明,郊区中小河流氮磷污染严重,并存在一定的重金属污染风险。中小河流污染的空间分布规律显示,人们生活活动、禽畜养殖、农田径流等因素是河流水环境污染的主要因素。提出上海郊区中小河流的治理,应更多地重视生态策略,增强河流的生态自净功能。

Status Quo and Strategies of Pollution on Middle and Small Creeks in Suburb of Shanghai

Taking Xianghuaqiao Town of Qingpu District, Suburban Shanghai as an example to study the effect of anthropogenic activities on the surface water env ironment in the overdeveloping area, water quality in the middle and small creek s in the town has been monitored for a long time. The results showed that the cr eeks suffered the heavy pollution of nitrogen and phosphorus, as well as that of heavy metals to some extents. The spatial distribution of the pollution of the creeks also indicated that the main contributors of the pollutants were domestic wastewater, livestock wastes and agricultural runoff an so on. The ecological s trategy of strengthening the creeks' self-purification was put forwards for the improvement of the creeks in the area.