安徽农业科学2017，Vol.45Issue(18)：58-62,5.
崇明岛河流中氮营养盐分布特征
Characteristics of Variation Trend of Nitrogen Nutrient in Rivers of Chongming Island
摘要
Abstract
In order to evaluate the distribution characteristics of nitrogen nutrient of Chongming Island and its polluting situation,the characteristics of temporal and spatial variations of nitrogen nutrient as well as the main reasons of the pollution were studied based on the water quality data of Chongming Island.The results showed that the rivers were badly polluted in Chongming Island and the contents of TN in both wet and drought periods were in the danger range which might lead to eutrophication.The average contents of nitrogen nutrient in different levels of rivers at different precipitation periods varied significantly.The dissolved inorganic nitrogen (DIN) was the major composite of TN in Chongming Island.NO3——N accounted for over 50% of DIN.Additionally,the contents of water nitrogen nutrient at different spatial conditions varied significantly as well.The main sources of nitrogen nutrient include agricultural runoff,industrial and domestic wastewater.关键词
氮营养盐/时空分布/污染源/崇明岛Key words
Nitrogen/Temporal and spatial distributions/Pollution source/Chongming Island分类
资源环境引用本文复制引用
沈峥,孔玲,李俊鹏,顾敏燕,杨龙,张唯,王晨璐,张亚雷..崇明岛河流中氮营养盐分布特征[J].安徽农业科学,2017,45(18):58-62,5.基金项目
国家自然科学基金项目(21376180,21676205) （21376180,21676205）
上海市国际科技合作基金项目(14230710800) （14230710800）
青浦区-同济大学科技合作项目(20143289). （20143289）
