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Distribution of Dissolved Oxygen in the Surface Water and Its Influencial Factors in Quanzhou Bay During Spring and Summer(PDF)

Journal of Xiamen University(Natural Science)[ISSN:0438-0479/CN:35-1070/N]

Issue:
2017 04
Page:
531-539
Research Field:
Research Articles
Publishing date:
2017-07-26

Info

Title:
Distribution of Dissolved Oxygen in the Surface Water and Its Influencial Factors in Quanzhou Bay During Spring and Summer
Article ID:
0438-0479(2017)04-0531-09
Author(s):
ZHU Xuxu1GAO Aiguo1*WANG Shiyong2ZHANG Yanpo1HOU Yuting1GONG Songbai1
1.College of Ocean and Earth Sciences,Xiamen University,Xiamen 361102,China; 2.Marine and Fisheries Technology Center of Fuzhou,Fuzhou 350026,China
Keywords:
Quanzhou Bay dissolved oxygen(DO) apparent oxygen utilization(AOU) tidal effect biogeochemical processes
CLC number:
P 734.2
DOI:
10.6043/j.issn.0438-0479.201609033
Document code:

A
Abstract:
Distribution of dissolved oxygen(DO)in water,which is influenced by complicated geochemical processes,plays an important role in ecological environment protection and restoration.We analyzed the DO concentrations in the surface water of Quanzhou Bay during spring and summer.The results showed that DO concentrations were 6.37-8.24 mg/L and 2.76-7.62 mg/L during spring and summer,respectively,and the seasonal difference was attributed to the differences of water temperature and oxygen consumption.DO concentrations increased from the inner bay to the bay mouth,and varied more significantly during spring than summer.Furthermore,DO concentrations varied more obviously in the southwestern waters than in the central of bay during spring,while varied in an opposite way during summer,which was mainly due to the effects of runoffs and tide.Apparent oxygen utilization(AOU)concentrations were significantly positively correlated with chemical oxygen demand(COD)and negatively correlated with salinity and pH,and the correlations between AOU and nutrients were different during various tidal periods.Generally,AOU distributions in Quanzhou Bay are influenced by organic matter degradation,plankton activities and mixture of runoffs and tide.The effects of plankton activities on AOU are greater during summer than spring,and the influences of runoffs and tide are stronger during spring than summer.

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Memo

Memo:
收稿日期:2016-09-26 录用日期:2017-01-08
基金项目:国家自然科学基金(41376050)
*通信作者:aggao@xmu.edu.cn
Last Update: 1900-01-01