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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

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    Abstract - Issue May 2014, 35 (3)                                     Back


nstantaneous and historical temperature effects on a-pinene

Studies on kinetics of water quality factors to establish water transparency model in Neijiang River, China 

 

Ronghui Li1,Wei Pan1, Jinchuan Guo1, Yong Pang3,Jianqiang Wu4,Yiping Li3, Baozhu Pan5, Yong Ji6 and Ling Ding2*

1Guangxi Institute of Water Resources Research, Nanning-530 023, China

2Shanghai Investigation, Design & Research Institute, Shanghai-200 434, China

3College of Environment, Hohai University, Nanjing-210 098, China

4Shanghai Academy of Environmental Sciences, Shanghai-200 233, China

5Changjiang River Scientific Research Institute, Wuhan-430 010, China

6College of Hydraulic and Ecological Engineering, Nanchang Institute of Technology, Nanchang-330 099, China

*Corresponding Author E-mail: dl@sidri.com

 

 

 

Publication Data

Paper received:

16 October 2013

 

Revised received:

13 December 2013

 

Re-revised received:

04 January 2014

 

Accepted:

12 January 2014

 

Abstract

The basis for submerged plant restoration in surface water is to research the complicated dynamic mechanism of water transparency. In this paper, through the impact factor analysis of water transparency, the suspended sediment, dissolved organic matter, algae were determined as three main impact factors for water transparency of Neijiang River in Eastern China. And the multiple regression equation of water transparency and sediment concentration, permanganate index, chlorophyll-a concentration was developed. Considering the complicated transport and transformation of suspended sediment, dissolved organic matter and algae, numerical model of them were developed respectively for simulating the dynamic process. Water transparency numerical model was finally developed by coupling the sediment, water quality, and algae model. These results showed that suspended sediment was a key factor influencing water transparency of Neijiang River, the influence of water quality indicated by chemical oxygen demand and algal concentration indicated by chlorophyll a were indeterminate when their concentrations were lower, the influence was more obvious when high concentrations are available, such three factors showed direct influence on water transparency. ? 

 

 Key words

Impact factors, Neijiang river, Numerical model, Suspended sediment, Water transparency 

 

 

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