基于生态优先和地质环境适宜性的土地利用规划——以北海市为例

Land Use Planning Based on Ecological Priority and Geological Environment Suitability—A Case Study of Beihai City

北海市作为“海上丝绸之路”规划建设的核心地区以及海岸带生态环境脆弱的典型地区,近年来,由于社会经济发展导致海岸带生态环境恶化、海水入侵与地下水污染等地质环境问题愈发严重,而开展科学合理的土地利用规划对促进当地人与自然的可持续发展具有重要的积极意义。基于MapGIS平台,分别建立生态用地、农业用地与建设用地地质环境评价指标体系,引入变权层次分析-综合指数法模型对北海市土地利用展开规划研究。规划结果显示:生态用地、农业用地与建设用地规划面积分别占研究区总面积的43.8%、42.1%与14.1%,并以此对比现有规划提出相应的优化建议。研究结果可为研究区未来土地利用规划提供技术支持。

Beihai,as the planned core area of“Maritime Silk Road”and typical area of coastal city with fragile ecological environment,in recent years,geological environmental problems such as deterioration of ecological environment in the coastal zone,seawater intrusion,groundwater pollution led by social and economic development have become increasingly serious,scientific and rational land use planning is of great significance to promote the sustainable development of local people and nature.Based on the MapGIS platform,this study established geological environmental evaluation index system of ecological land,agricultural land and construction land respectively,and introduced the model of variable right hierarchy analysis-comprehensive index method to carry out the planning research of land use in Beihai City.The results showed that the planning area of ecological land,agricultural land and construction land occupied 43.8%,42.1%and 14.1%of the total area respectively,and the corresponding optimization suggestions were put forward by comparing with the existing plans.The research results can provide technical support for future land use planning in Beihai City.