摘要
本文选取北京市密云水库及其上下游潮白河流域为研究区,基于不同河段、不同批次水样品的分析测定和生态环境调查,对主要水质指标进行对比分析。研究结果表明,密云水库上游及库区水质符合Ⅰ类、Ⅱ类地表水水质标准,满足饮用水源地要求,但个别观测点水质指标受环境影响存在较大差异。在密云水库下游,水质基本处于Ⅲ~Ⅴ类,水质指标更多受河道环境治理因素的影响。密云水库下游地区一些点位的指标,如溶解氧、氨氮和总磷较好,可见经过处理的中水作为景观用水用于改善生态环境具有现实意义。基于此,从污染治理、环境监管措施等方面为密云水库水源地保护提出建设性意见,提高水质,遏制生态环境恶化。
In the paper,Beijing Miyun Reservoir and Chaobai River Basin on the upstream and downstream areas are selected as study area. Main water quality indexes are comparatively analyzed based on assay determination and ecological environment research of water samples in different river sections and different batches. The research results show that water quality on the upstream area and reservoir area in Miyun Reservoir is consistent with class Ⅰ and class Ⅱ surface water quality standard,thereby meeting the requirement of drinking water source. However,individual observation points are affected by environment differently. The water quality basically belongs to class III and class V in the downstream area of Miyun Reservoir. Water quality index is more affected by river environmental factors. Indexes of some points in Miyun Reservoir downstream area are better such as dissolved oxygen,ammonia nitrogen and total phosphorus. It is visible that the treated reclaimed water has realistic significance in improving ecological environment. On the basis, constructive suggestions are proposed for water source protection of Miyun Reservoir from the aspects of pollution governance,environment monitoring measures,etc.
出处
《水资源开发与管理》
2016年第4期63-67,共5页
Water Resources Development and Management
关键词
密云水库
河流
水质分析
环境调查
Miyun Reservoir
river
analysis of water quality
environmental investigation
