Analysis of the impact on ecosystem and environment of marine reclamation--A case study in Jiaozhou Bay

Reclamation is the important utilization manner of ocean for mankind. Yet because reclamation changes natural bank shape in short term and small scale, so it can strongly disturb the whole natural system and bring a new misbalance, which affect the stability, diversity and sustainability of the seashore. In order to avoid and lighten the influence of reclamation, we should analyze and diagnose the possible effects, which can do some theory preparations for settling this problem. As a case study in Jiaozhou Bay, this paper selects 9 indicators to base the indicator system. The frame principle of the indicator system includes scientific, synthetical, viable, representative, hierarchical, systematic and data available. Basing the influencing aspects, this article uses the method of analytic hierarchy process (AHP), qualitative and quantitive method to calculate the indicators. By using the judging matrix, hierarchy sorting and indicators, the paper calculates the effect degree of reclamation to environment and ecosystem is comparatively high, and its growth is an increasing process in Jiaozhou Bay. From this point, with the reclamation scale is increasing, the effect degree of reclamation to environment and ecosystem is more and more serious.