Analysis On The Value Change Of Ecosystem Services In Coastal Areas Of Bohai In Recent20Years Based On Remote Sensing

In recent years, because of the rapid development of economy, high-intensity utilization, increasingly prominent contradiction between development and envirionment, the loss of marine ecosystem services in coastal areas of Bohai was increased significantly. Analyzing the change of ecosystem services value, guideddevelopment and reasonable industrial layout, promoted the sustainable development of marine economy in coastal areas of Bohai, which have important theoretical and practical significance.In this paper, the sea use pattern in coastal areas of Bohai in recent years were analyzed based on the the precisely corrected remote sensing images and associated ecosystem service value theory. Evaluated the value change of ecosystem services in the areas, according to the recently published equivalent of ecosystem value, and also analyzed the space distribution features.Firstly, the connotation and contents of the marine ecosystem services were summarized. Bansed on the comprehensive understanding of ecosystem services related literature, summarized the concept and related theory, determining the connotation and main content of marine ecosystem services.Secondly, analyzed the development and utilization patterns evolve comprehensively in coastal areas of Bohai. According to the geographical environment characteristics, with the related stastics data and remote sensing images in recent20years, analyzed the development and utilization patterns evolve in coastal areas of Bohai provinces nearly20years.Based on this, analyzed the value change of ecosystem services in coastal areas of Bohai. Depending on the type of marine ecosystem services and landscape, use of equivalent valu per unit area of ecosystem services in china, the value change of ecosystem services in the areas was evaluated nearly20years. Analyzed the value change of ecosystem services in the overall system and provinces, as well as analyzed the sensitivity of the ecosystem services value in coastal of Bohai.It was show that, because of high-intensity utilization in recent20years, the loss to marine ecosystem services in coastal areas of Bohai was great. The greatest losses of marine ecosystem service value was by the construction land, bare land and salt pan occupying the original water areas and marshy. The coast exploitation and utilization of Tanshan, Weifang, Tianjin, Panjin and Jinzhou was change abviously, the loss of marine ecosystem services was bigger, and the Tangshan’s loss of marine ecosystem service value was largest.