A study on the collaborative control of water quality of nitrogen and phosphorus between typical lakes and their inflow rivers in China

被引：9
|
作者：
Gao K. [1 ,2 ]
Zhu Y. [2 ]
Sun F. [2 ]
Chen Y. [2 ]
Liao H. [2 ]
Ma H. [2 ,3 ]
Hu X. [1 ,2 ]
机构：
[1] School of Earth Science, Yangtze University, Wuhan
[2] State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing
[3] School of Geography and Environmental Science, Northwest Normal University, Lanzhou
来源：
Zhu, Yuanrong (zhuyuanrong07@mails.ucas.ac.cn) | 1600年 / Science Press卷 / 33期
关键词：
Collaborative control; Criteria and standards; Eutrophication; Inflow rivers; Lakes; Nitrogen; Phosphorus;
D O I：
10.18307/2021.0509
中图分类号：
学科分类号：
摘要：
Inflow rivers is the main way for exogenous nitrogen and phosphorus input to lakes, which is also the key transition zone to control the external sources of lakes. Comparative analysis of total nitrogen (TN) and total phosphorus (TP) concentrations of typical lakes and their main inflow rivers from different regions of China was carried out. Based on these analyses, the influence of nitrogen and phosphorus input by the main inflow rivers on the eutrophication of lakes was discussed. Finally, the collaborative control of nutrients of water (TN and TP) between lakes and their inflow rivers was also discussed. Results showed that the exogenous input of TN and TP still had a significant effect on the TN, TP and trophic status index (TSI) of the lakes in China during the 13th Five-Year Plan period. Water quality could not reach class Ⅲ and maintain mesotrophic status for some lakes in China only by collaborative control of nitrogen and phosphorus between lakes and their inflow rivers. Control of internal load and ecological restoration should also be comprehensively applied to the eutrophication governance of lakes in China. Additionally, the water quality (TN and TP concentrations) and water volume of inflow rivers have jointly affected on the TN and TP concentrations and TSI of the lake in China. Based on the measures, regulations and laws from other developed countries, also combined with the present situation of water quality of lakes and their inflow rivers, policy and proposal about collaborative control on nitrogen and phosphorus of lakes and their inflow rivers was proposed. This research would support the control of exogenous nitrogen and phosphorus and ecological restoration for eutrophic lakes in China. © 2021 by Journal of Lake Sciences.
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页码：1400 / 1414
页数：14
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