基于GIS的海岛生态脆弱性评价研究与实践——以海坛岛为例

摘要

基于生态敏感度、生态弹性度和生态压力度,构建了海岛生态脆弱性评价的指标体系,采用综合指数法和GIS相结合的方法对海坛岛的生态脆弱性进行了定量评价,并绘制了生态脆弱性等级分布图,分析了生态脆弱度的空间差异和不同区域生态脆弱性的主导成因.评价结果与该区域的生态环境状况较为一致,对于海坛岛的生态保护和资源利用具有一定的指导意义.%Based on ecological sensitivity、ecological elasticity and ecological pressure, assessment index system for island ecological frangibilily was established.This paper made the ecological frangibility assessment of Haitan island with a combination of comprehensive index method and GIS approach, drew the picture of ecological frangibility dominant index level,and analyzed spacial difference and reasons of ecological frangibility in different regions.The results was agreed with the ecological environment conditions,which can provide scientific evidence for ecological conservation and resource usage of Haitan island.