基于GIS的大连市渤海沿岸建设用地适宜性评价

选取大连渤海一线的金州湾至普兰店湾段,以海岸线向陆域一侧延伸1km,向海一侧至1m等深线为研究区,采用传统地理学分析和GIS方法,对该区的建设用地适宜性进行了分析;该区总面积为358km2,其中最适宜建设区总面积为195km2,较适宜建设区为46km2,一般适宜建设区为47km2,准适宜建设区为52km2,不适宜建设区为18km2;适宜建设用地规模总量较大,分布集中,特别是最适宜建设区比重很大,而该区是沿海生态敏感区,建设用地和生态用地矛盾突出;应优化土地资源配置、提高土地利用效益,节约集约利用土地,加强海陆一体化建设、促进海陆空间资源优势互补,切实保护生态环境。

Urban constructive land suitability evaluation based on GIS along Bohai Sea waterfront

This paper selects Jinzhou bay to Pulandian bay along Bohai waterfront, extending 1 km by seacoast alignment land territory and 1 meter isobaths for research area. We use the traditional geography method and GIS to analyze the construction suitability of this area. The result indicated that the total area 358km2, 195 km2 of the most suitable area,46km2 of more suitable area, 47km2 of generally suitable area, 52km2 of inferior suitable area and 18km2 of not suitable. It can be said that the suitable construction scale is more and the distribution is centralism. What＇ s more, the most suitable construction area proportion is the biggest. But this area is the coastal ecology sensitive area and the contradictory of construction and ecology will be long-standing. So we should optimize the land resource disposition, economizing on the use of land, enhancing sea and land integration construction, promoting land and sea resources superiority supplementary, protects the ecological environment practically.