Assessment On Europhication Of Tianjin Alongshore Seawaters

This article is a research about the assessment on europhication problem of Tianjin alongshore seawaters. It is based on the theory of the seawaters ecosystem-model, and formed by line which contained the assessment of "state- response-renovate", also evaluating the problem from three aspects which contains the state evaluation, response evaluation,restoring evaluation in the eco-system.The data which used in the article came from the information by general inspect on of the seawaters' condition. When analyzed with the data, it was based on the function of the SPSS and ArcGIS software very well. The conclusion of the assessment can be summarized as the after expression:1. the main factor which affected the europhication of Tianjin alongshore seawaters was the elementary productivity and saline nutrition in seawater,but with the affection of DO was very low; the grade of the problem has been developed from "N-restricted" europhication to "P-restricted" europhication.2. The community of phytoplankton has become the characteristics such as low kinds,diversity and high with singleness; the bottom biome was developed from sand-bottom kind to mud-bottom kind; from the analyzed in the zoology inspected section we could conclude that, the state of europhication in Tianjin alongshore seawaters was in a sub-health level.3. The heavier polluted area was distributed mostly by the empoison estuaries, and the grade of pollution infection from the land was to occupy much proportion; the whittling quantity of pollution is achieved a good situation in 2005 accepted TIN, so that was a distance to the controlling goal.