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梁滩河沉积物中氮磷垂直分布研究
引用本文:宋厚燃,马利民,闵真真.梁滩河沉积物中氮磷垂直分布研究[J].环境污染与防治,2012,34(6):42-45,50.
作者姓名:宋厚燃  马利民  闵真真
作者单位:同济大学环境科学与工程学院,污染控制与资源化研究国家重点实验室,上海200092
基金项目:国家水体污染控制与治理科技重大专项
摘    要:以梁滩河为研究对象,从上游到下游布置了15个采样点,研究了这些采样点的氮、磷浓度,并以其中几个采样点为主要对象,着重研究了氮、磷在不同深度的垂直分布情况。结果表明,梁滩河的上游左支氮、磷浓度已经较高,而上游右支受污染严重,特别是TN严重超标,说明长期受到生活污水和农业废水的污染。分析其垂直分布规律,TN、TP最高值大多出现在中间层,TP在底层的浓度总体要比表层高,而TN在底层的浓度总体要比表层低。梁滩河沉积物中氮、磷主要集中在中间层,中间层是营养物储存的主要场所。

关 键 词:梁滩河  沉积物  TN  TP  垂直分布

Study on the vertical distribution of nitrogen and phosphorus in the sediments of Liangtanhe River
SONG Houran , MA Limin , MIN Zhenzhen.Study on the vertical distribution of nitrogen and phosphorus in the sediments of Liangtanhe River[J].Environmental Pollution & Control,2012,34(6):42-45,50.
Authors:SONG Houran  MA Limin  MIN Zhenzhen
Institution:.(State Key Laboratory of Pollution Control & Resources Reuse,College of Environmental Science and Engineering,Tongji University,Shanghai 200092)
Abstract:15 sampling sites were arranged from upstream to downstream of Liangtan River to determine the concentration of TN and TP in the sediments of Liangtan River.The vertical distribution of nitrogen and phosphorus in sediment of 5-6 target sampling sites was studied emphatically.Results showed that the concentration of nitrogen and phosphorus in the left branch of upper Liangtan River was high;the right branch of upper Liangtan River was seriously polluted,especially by nitrogen.These findings indicated that the Liangtan River was long-term polluted by the domestic wastewater and agriculture wastewater.The maximum TP and TN value were both appeared in the middle layer.The concentration of TP in the bottom of sediments was higher than that in surface,while the TN was opposite.Middle layer of sediments was the most important reservoirs of the nutrients.
Keywords:Liangtan River  sediments  TN  TP  vertical distribution
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