The research on Nelumbonucifera for eutrophication control in Wuliangsuhailake Inner Mongolia,China

International Conference on Energy Engineering and Environmental Protection 2017

能源学;生态环境科学

Li, Xing^1 ; Xu, Xiaoqing^1 ; Gou, Mangmang^2

Inner Mongolia Normal University, Hohhot

010020, China^1

Inner Mongolia Technical College of Mechanics and Electrics, Hohhot

010070, China^2

关键词: Dissolved oxygen concentrations;    Eutrophication control;    Phytoplankton abundances;    Salt tolerance;    Total nitrogen;    Total nitrogen removal;    Total phosphorus;    Water environments;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/121/3/032033/pdf
DOI  :  10.1088/1755-1315/121/3/032033

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In order to study the effect on Nelumbonucifera (common name:lotus) for eutrophication control in Wuliangsuhai lake inner Mongolia, an enclosure of 2000m2was established in the southeast of Wuliangsuhailake. In the paper, the changes on water quality and phytoplankton abundance were monitored before planting lotus, after. Purpose of the study is to investigate the influence of lotus on improving water quality, restoration of water environment, and so on. The results were shown below. Firstly, Plantinglotus was significant for removal of total nitrogen and total phosphorus in water. Total nitrogen removal rate was more than 25%.Total phosphorus removal rate was more than 30%.Secondly, dissolved oxygen concentrations in August increased by 39.31percent.The Simultaneously, compared with the control (in April), the pH value was 8.0 in August(the flowering period) and declined by 10.11 percent. In this salinity, lotus had a strong salt tolerance and growed normally. Lastly, the biomass of phytoplankton was inhibited after planting lotus, especially for the inhibition of green algae growth. Studies on water bodies restoration under planting lotus in Wuliangsuhai lake have not been reported.Therefore, planting lotus will provide a new idea and theoretical reference for improving the eutrophication of Wuliangsuhailake.