水力发电2017,Vol.43Issue(5):5-9,5.
浅水湖泊沉积物-水界面可交换态氮赋存特征
Characteristics of Exchangeable Nitrogen Occurrence in Sediment-water Interface of Shallow Lakes
摘要
Abstract
The Nitrogen load,which is mainly composed of exchangeable nitrogen,is one of the determinants of lake water quality.Four shallow lakes of Jiulong Kou,Dazong Lake,Wugong Lake and Desheng Lake,which are affected by different human activities in Lixiahe area,are selected as study objects,the distribution characteristics of total nitrogen and exchangeable nitrogen in sediment-water interface are analyzed by field investigation and experiment.The results show that,(a) the distribution of exchangeable nitrogen is significantly affected by human activities;and (b) as the biological and microbial activities in sediments are frequent,the content of exchangeable nitrogen in overlying water,interstitial water and sediments are low.In addition,the redox conditions at sediment-water interface also influence the distribution of exchangeable nitrogen in surface sediments.关键词
赋存特征/可交换态氮(EN)/沉积物-水界面/浅水湖Key words
occurrence characteristic/exchangeable nitrogen/interface of sediment and water/shallow lake分类
资源环境引用本文复制引用
燕文明,黄列,刘凌,吴挺峰,王汗..浅水湖泊沉积物-水界面可交换态氮赋存特征[J].水力发电,2017,43(5):5-9,5.基金项目
国家自然科学基金资助项目(41301531 ()
41471021) ()