潘大水库水环境时空格局演变动态
发布时间：2018-07-18 12:20
【摘要】：潘家口、大黑汀水库(简称潘大水库)是京津冀区域的重要饮用水水源地,研究其水环境状况对保障受水区的供水安全具有重要意义.基于2006-2014年潘大水库水环境因子的调查,采用单因子评价法对水库水环境状况的时空格局演变动态进行分析.结果表明,总氮、总磷是潘大水库的主要污染物,总氮总体为劣Ⅴ类水水平,总磷总体为Ⅴ类水水平.其它水环境指标均未超过国家《地表水环境质量标准》(GB3838-2002)中Ⅲ类水的标准.空间上,潘家口水库坝上氮磷营养盐均有沿程下降趋势,表明主要受上游污染输入的影响,后随污染物的不断消耗而逐渐下降.但到了潘家口坝下,由于下池、洒河桥等区域新的污染物的汇入,大黑汀水库的污染再次加重.时间上,潘家口水库总氮总体呈逐年上升趋势,2011年之后下降;大黑汀水库在2012年之后总氮呈下降趋势.两库总磷总体上均呈逐年上升趋势,其中,大黑汀水库2011-2013年虽有缓慢下降趋势,但2014年恢复到较高含量水平.氨氮含量并未发现明显的时间变化规律,大黑汀水库一直维持在Ⅱ类水水平附近,而潘家口水库自2010年一直呈下降趋势,近两年亦稳定在Ⅱ类水水平.硝态氮含量与总氮含量变化趋势相似.而高锰酸盐指数一直呈逐年上升趋势,维持在Ⅲ类水的标准范围内.溶解氧含量一直维持在Ⅰ类水的水平.本研究表明,潘大水库氮磷污染严重,呈逐年恶化趋势,受上游污染及下池、洒河桥外源输入的影响,洒河桥及以下区域呈现除总氮外的水环境因子沿程上升趋势.
[Abstract]:The dam is an important source of drinking water in the Beijing Tianjin Hebei region. It is of great significance to study the water environment of the Beijing Tianjin Hebei region. Based on the investigation of the water environment factor of the pan big reservoir in 2006-2014 years, the evolution of the spatial and temporal pattern of the water environment condition of the reservoir is adopted by the single factor evaluation method. The results show that total nitrogen and total phosphorus are the main pollutants in the Pan Da reservoir, total nitrogen is inferior to grade V, total phosphorus is type V water level. Other water environmental indicators are not more than the standard of class III water in the national standard of surface water environmental quality (GB3838-2002). The decline trend shows that the main influence of the upstream pollution input and then gradually decrease with the continuous consumption of pollutants. But under Pan Jia mouth dam, the pollution of the damting reservoir is aggravated by the remittance of new pollutants in the lower pool and the sprinkled River Bridge. The total nitrogen of the Da hting reservoir decreased after 2012. Two the total total phosphorus in the reservoir showed an upward trend year by year. In 2011-2013 years, the Da hting reservoir declined slowly, but in 2014, it recovered to a higher level. The ammonia nitrogen content did not find the obvious time change law. The dam has been maintained near the level of class II water level. The Pan Jia mouth reservoir has been declining since 2010, and in the last two years it has also stabilized in class II water level. The content of nitrate nitrogen is similar to the total nitrogen content. The permanganate index has been increasing year by year, maintaining in the standard range of class III water. The content of dissolved oxygen has been maintained at the level of type I water. This study shows that Pan Dashui The pollution of the nitrogen and phosphorus is serious, showing a trend of worsening year by year. Influenced by the upstream pollution and the lower pool and the exogenous input of the river bridge, the water environmental factors of the sprinkled River Bridge and the following areas show the trend of the water environmental factors except the total nitrogen.
【作者单位】： 中国水利水电科学研究院水环境研究所;三峡大学水利与环境学院;海河流域水资源保护局;
【基金】：国家自然科学基金项目(51309031) 中国水利水电科学研究院流域水循环模拟与调控国家重点实验室项目(2015TS02)资助~~
【分类号】：X524
本文编号：2131886
[Abstract]:The dam is an important source of drinking water in the Beijing Tianjin Hebei region. It is of great significance to study the water environment of the Beijing Tianjin Hebei region. Based on the investigation of the water environment factor of the pan big reservoir in 2006-2014 years, the evolution of the spatial and temporal pattern of the water environment condition of the reservoir is adopted by the single factor evaluation method. The results show that total nitrogen and total phosphorus are the main pollutants in the Pan Da reservoir, total nitrogen is inferior to grade V, total phosphorus is type V water level. Other water environmental indicators are not more than the standard of class III water in the national standard of surface water environmental quality (GB3838-2002). The decline trend shows that the main influence of the upstream pollution input and then gradually decrease with the continuous consumption of pollutants. But under Pan Jia mouth dam, the pollution of the damting reservoir is aggravated by the remittance of new pollutants in the lower pool and the sprinkled River Bridge. The total nitrogen of the Da hting reservoir decreased after 2012. Two the total total phosphorus in the reservoir showed an upward trend year by year. In 2011-2013 years, the Da hting reservoir declined slowly, but in 2014, it recovered to a higher level. The ammonia nitrogen content did not find the obvious time change law. The dam has been maintained near the level of class II water level. The Pan Jia mouth reservoir has been declining since 2010, and in the last two years it has also stabilized in class II water level. The content of nitrate nitrogen is similar to the total nitrogen content. The permanganate index has been increasing year by year, maintaining in the standard range of class III water. The content of dissolved oxygen has been maintained at the level of type I water. This study shows that Pan Dashui The pollution of the nitrogen and phosphorus is serious, showing a trend of worsening year by year. Influenced by the upstream pollution and the lower pool and the exogenous input of the river bridge, the water environmental factors of the sprinkled River Bridge and the following areas show the trend of the water environmental factors except the total nitrogen.
【作者单位】： 中国水利水电科学研究院水环境研究所;三峡大学水利与环境学院;海河流域水资源保护局;
【基金】：国家自然科学基金项目(51309031) 中国水利水电科学研究院流域水循环模拟与调控国家重点实验室项目(2015TS02)资助~~
【分类号】：X524
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