|Table of Contents|

Effect of Bottom Water Release on the Contents ofN,P,Mn and Fe in Huangcun Reservoir(PDF)

《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2020年03期
Page:
136-140
Research Field:
·生态学·
Publishing date:

Info

Title:
Effect of Bottom Water Release on the Contents ofN,P,Mn and Fe in Huangcun Reservoir
Author(s):
Wang Yuanfei1; 2; Zhou Cuntong1; 2; Lin Jie3; Fan Xiaoli2; Lin Zhihua2
(1.School of Life Sciences,Nanjing Normal University,Nanjing 210023,China)(2.College of Ecology,Lishui University,Lishui 323000,China)(3.Lishui Water Resources Development Co.,Ltd,Lishui 323000,China)
Keywords:
Huangcun reservoir; bottom water releasing; water quality; external loading
PACS:
Q149
DOI:
10.3969/j.issn.1001-4616.2020.03.021
Abstract:
Water quality in shallow lakes has suffered worldwide in recent decades. This study explored the effect of the bottom water releasing of huangcun reservoir on water quality. The results showed that before the bottom water was released,the analysis of variance showed that there was no significant difference in Fe and P between the bottom water and the intermediate water. The concentration of Mn and N was significantly different,and the concentration of the bottom water was significantly higher than that of the intermediate water. The variance analysis of the detection substances before and after water releasing showed that the difference of Fe,Mn,P and N in the bottom water was not significant. The difference of Fe,Mn and P in the intermediate water was not significant while the difference of N concentration was significant. The results of regression analysis showed that the Fe and P contents increased significantly with time,while the Mn and N contents did not increase significantly with time,but from a long-term trend,the Mn and N contents showed an increasing trend. The natural increasing rate of Fe,Mn,P and N was greater than the decreasing rate in the process of water releasing,which showed that the water releasing cannot offset the nutrients brought into the reservoir by external factors.

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Last Update: 2020-09-15