The Primary Ecological Problems and their Evolution Analysis of Bohai Sea in 2008

In this paper, the environment and socio-economic basic status of Bohai Sea is analysized firstly, and then its ecoenvironmental condition and pressure are reviewed simply. Based on the survey data in May, August and October 2008, the extent of eutrophication, salinity and ratio of nitrogen and phosphorus as well as its changes has been assessed. The primary ecological environment problems of Bohai Sea are pointed out from the view of the changes of environment factors.