Distribution characteristics of the surface dissolved oxygen in the winter and preliminary analysis on the correlation with other factors in Luoyuan Bay

According to the survey data in Luoyuan Bay on 2010-2012 winter,the content of DO changes little,and distribution showed increasing trend from north to south. The paper used Pearson correlation coefficient to measure the correlation between the data,the results showed that surface water temperature in winter was negatively related to DO; when pH was low,DO increased along with pH. When pH reached a certain concentration,DO decreased with pH increased. There was inverse correlation between DO and nitrogen and phosphorus in Luoyuan Bay,but a positive correlation was found between DO and nitrogen and phosphorus in bay mouth to Gangyu.