Total phosphorus model in Lake Gaoyang during the period of high water level in Pengxi River backwater zone, Three Gorges Reservoir

被引：0

作者：

He B. ^{[1
]}

Li Z. ^{[2
,3
]}

Feng J. ^{[1
]}

Xiao Y. ^{[2
,3
]}

Guo J. ^{[2
,3
]}

机构：

[1] Faculty of Urban Construction and Environmental Engineering, Chongqing University, Chongqing

[2] Key Laboratory of Water Environment Reservoir, Chinese Academy of Sciences, Chongqing

[3] Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing

来源：

Hupo Kexue/Journal of Lake Sciences | 2016年 / 28卷 / 02期

关键词：

Drawdown area; High water level; Lake Gaoyang; Pengxi River; Three Gorges Reservoir; Total phosphorus budget model;

D O I：

10.18307/2016.0208

中图分类号：

学科分类号：

摘要：

The mode of operation of storing clear and releasing muddy in Three Gorges Reservoir makes drawdown areas submerged alongshore during the period of high water level in winter. After drawdown areas are submerged, the accumulation and release of nutrients such as nitrogen and phosphorus may have an important contribution to the algae bloom at the end of winter. This article establishes a model of the total phosphorus, which analyzes the balance of payments and the cumulant of total phosphorus, as well as the main source of cumulative phosphorus during the period of high water level in Lake Gaoyang of Pengxi River. In impounding stage, the increasing water level led to a great amount of phosphorus accumulation. In stable stage, the total tends to be mild. In algae bloom stage, the accumulation of phosphorus is consumed heavily in early time, forming algae bloom. The release of phosphorus in submerged drawdown area is the main source of total phosphorus throughout the period in Lake Gaoyang. It provides conditions for the outbreak of algae bloom at the end of winter. The results have set a solid foundation for the conversion and distribution of phosphorus forms. © 2016 by Journal of Lake Sciences.

引用

页码：295 / 302

页数：7

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