【摘要】 小浪底水库水质不仅影响到下游河段的水环境质量,而且也会影响到周围的生态平衡。文章选择了pH值、总氮、总磷、化学需氧量、溶解氧和五日生化需氧量等六个指标进行全年12次检测,分析了水质的污染特征,结果表明,前7个月水质呈现污染加重的趋势,而5个月水质呈现向好的趋势。更多还原

【Abstract】 The water quality of the Xiaolangdi reservoir will influence directly on not only the water environmental quality of the lower reaches but also the the ecological balance of the surroundings of the reservoir. Total nitrogen,total phosphorus,chemical oxygen demand,dissolved oxygen,five-day biochemical oxygen demand and pH were determined every month in one year and analyze the pollution characteristics. Results showed that the water quality pollution have marked increasing trends in the seven months but dropping trends in the flowering five months.更多还原