| Seasonal variations of nitrogen, phosphorus and the nutrient characters in the shallow lakes along the middle and lower reaches of the Yangtze River |
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| 作者姓名： | Haiao ZENG Jinglu WU |
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| 作者单位： | [1]Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China [2]Graduate School of the Chinese Academy of Sciences, Beijing 100039, China |
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| 摘 要： | Lakes along the middle and lower reaches of the Yangtze River are unique shallow lake group faced with serious problems of eutrophication. In shallow lakes, there are strong interactions between surface sediment and overlying water, and the chemical, biological processes are complicated in the system. The mechanism of shallow lake eutrophication is still insufficient to instruct the harness practice. Water samples were collected quarterly in each lake center from 2000 to 2003. Chemical variables and ionic concentrations were measured in laboratory. This paper focused on the seasonal variations of NO2-N, NO3-N, NH4-N, DIP, chlorophyll a and TN ： TP ratios in 49 lakes along the middle and lower reaches of the Yangtze River. The cooperating mechanisms between N and P were investigated through the analysis of their relationships at different nutrient levels.
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| 关 键 词： | 长江 沉积物 湖泊 富营养化 水体污染 |
Seasonal variations of nitrogen, phosphorus and the nutrient characters in the shallow lakes along the middle and lower reaches of the Yangtze River |
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| Haiao ZENG Jinglu WU.Seasonal variations of nitrogen, phosphorus and the nutrient characters in the shallow lakes along the middle and lower reaches of the Yangtze River[J].Chinese Journal of Geochemistry,2006,25(B08):159-160. |
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