济南卧虎山水库上游河流氮素含量时空变化特征研究

摘要

In December 2010 to October 2011 ,collected the surface water of the Jin Yang Chuan and Jin Yun Chuan seasonally in the important water sources upstream southern of Jinan. Analyzed the characteristics of temporal and spatial variation of water environmental factors （ temperature, dissolved oxygen, pH value, conductivity） and ammonium nitrogen（ NH4^＋ -N ）, nitrate nitrogen （ NO3^- -N ）, total nitrogen （ TN ）. The results showed that： the water NH4^-＋ - N content of Jin Yang Chuan River was the highest in October for the impacts of tourist pollution ; the water NH4^＋ - N content of Jin Yun Chuan River was the highest in August for the influences of surrounding agricultural activities. The seasonal variation of water NO3^- - N content was winter 〉 autumn 〉 summer 〉 spring,in space, NH4^＋ - N and NO3^-- N increased gradually along the flow direction trend, NO3^- -N was the main stable form of watershed nitrogen; the fiver TN content was significantly higher than the V standard class of surface water environment quality, which indicated that TN pollution had been very serious and should be given much attention to control in this area.%于2010年12月至2011年10月对济南南部重要水源地上游的锦阳川和锦云川两小流域地表水分季节地进行了系统采集，分析研究了河流水环境因子（水温、pH值、溶解氧、电导率）与水体铵态氮（NH4^＋-N）、硝态氮（NO3^--N）、总氮（TN）的时空变化特征。结果表明：锦阳川流域受旅游污染的影响，10月水体NH4^＋-N含量最高，锦云川流域则受周围农业活动的影响，8月NH4^＋-N含量较高；水体NO3^--N含量的季节变化表现为冬季〉秋季〉夏季〉春季；空间上，NH4^＋-N和NO3^--N沿水流方向基本呈逐渐升高的趋势；NO3^--N是流域氮素的主要稳定形态；河水中TN含量明显高于地表水环境质量的V类标准，说明该地区TN的污染已很严重，应作为重点污染物进行治理。