吉林省兴隆水库氮磷营养盐特征分布及生态治理对策
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摘要
为了解兴隆水库水体营养盐时空分布和水质现状,分别于2016年5月和7月在湖区内设置5个采样断面,分析了水体的理化指标和氮磷营养盐的特征指标。结果表明,兴隆水库水质具有明显的季节性,水质pH值偏碱性,溶解氧丰富,平均值高于8mg/L,总磷均超过0.2mg/L,总氮均超过1.2mg/L,三态氮中氨氮和硝态氮占主要比重,高锰酸盐指数超过地表水环境标准(GB3838-2002)Ⅲ类标准。兴隆水库营养盐浓度超负荷,需从连续实时监测水质、准确定位水库功能以及采取生物净水技术方面进行生态治理。
Nitro gen and Phosphorus are the primary pollutants and main indicators of eutrophication in xinglong Reservoir. In this study, the spatial-temporal distribution of nitrogen and phosphorus and water quality condition in xinglong Reservoir were investigated.The study was carried out in May and July 2016 at 5 sampling stations in reservoir. The results indicate that nutrient salt of nitrogen and phosphorous varied obviously with the seasons, the p H value of water quality showed alkaline, the concentration of dissolved oxygen is high(average>8 mg/L). The concentration of TN all over 1.2 mg/L and the concentration of TP all over 0.2 mg/L. The concentration of ammonia and nitrate main proportion on the inorganic nitrogen. The permanganate indexes were exceed the level Ⅲ of environmental quality standards for surface water(GB3838-2002). The nutrient concentrations overload in Xinglong reservoir, should be continuous real-time monitoring of water quality, accurate positioning the reservoir function and adopt biological water purification technology.
Nitro gen and Phosphorus are the primary pollutants and main indicators of eutrophication in xinglong Reservoir. In this study, the spatial-temporal distribution of nitrogen and phosphorus and water quality condition in xinglong Reservoir were investigated.The study was carried out in May and July 2016 at 5 sampling stations in reservoir. The results indicate that nutrient salt of nitrogen and phosphorous varied obviously with the seasons, the p H value of water quality showed alkaline, the concentration of dissolved oxygen is high(average>8 mg/L). The concentration of TN all over 1.2 mg/L and the concentration of TP all over 0.2 mg/L. The concentration of ammonia and nitrate main proportion on the inorganic nitrogen. The permanganate indexes were exceed the level Ⅲ of environmental quality standards for surface water(GB3838-2002). The nutrient concentrations overload in Xinglong reservoir, should be continuous real-time monitoring of water quality, accurate positioning the reservoir function and adopt biological water purification technology.
引文
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[2]柴夏,史加达,刘从玉,等.大钟岭水库氮磷营养盐季节变化及其与水质的关系[J].安徽农业科学,1994;7(4):12-20.
[3]Redfied A C.The biological control of chemical factors in the environment[J].American Scientist,1958;46:205-221.
[4]Sakamoto M.Primary production by phytoplankton community in some Japanese lakes and its dependence on lake depth[J].Archivfür Hydrobiologie,1966;62:1-28.
[5]刁晓君,席北斗,何连生,等.基于生态分区的我国湖泊营养盐控制目标研究[J].环境科学,2013;34(5):1687-1694.
[6]Irfanullah H M,Moss B.Factors influencing the return of submerged plants to a clear-water,shallow temperate lake[J].Aquatic Botany,2004;80(3):177-191.
[7]Gumbricht T.Nutrient removal processes in freshwater submersed macrophyte systems[J].Ecological Engineering,1993;2(1):1-30.
[8]Gumbricht T.Nutrient removal capacity in submersed macrophyte pond systems in a temperature climate[J].Ecological Engineering,1993;2(1):49-61.
[9]Xie Y F,Hu Y H,Liu Z W,et al.Effects of sediment resuspension on the growth of submerged plants[J].Acta Scientiae Circumstantiae,2007;27(1):18-22.