本研究以"暴露程度-敏感性-适应能力"为框架,构建了罗源湾海湾生态系统脆弱性评价指标体系,并运用模糊综合评价法对罗源湾海湾生态系统在1986~1; 990、2004~2006、2010~2012年三个阶段的脆弱性状况开展了定量评价,结果显示,罗源湾海湾生态系统在三个阶段均处于"中度脆弱"水平; ,综合评价得分逐年上升,呈现渐脆弱趋势.三个子系统的模糊评价结果表明,罗源湾海湾生态系统面临的暴露程度不断增大,其主要人为胁迫因子为滩涂围垦面积; 、临港工业发展和海水养殖密度;其次,罗源湾海湾生态系统的敏感性也越来越强,主要的敏感因子有海洋生物质量综合指数、浮游动物和潮间带底栖生物多样性指; 数和鱼卵仔稚鱼种类与密度;与此同时,适应能力则呈较好态势.研究结果可为相似区域海湾生态系统脆弱性评价提供参考.Based on the "Exposure- Sensitivity- Ability to adapt" framework, the; vulnerability assessment index system was established for Luoyuan Bay; ecosystem. The ecosystem vulnerabilities in 3 periods (1986~1990,; 2004~2006, 2010~2012) were studied used the fuzzy comprehensive; evaluation method. The results showed that all 3 periods were in; "mild-vulnerability". The scores increased in years and Luoyuan Bay; ecosystem tended to be increasingly vulnerable. The evaluate results of; 3 subsystems showed that the exposure intensity of Luoyuan Bay ecosystem; was increasing and the major artificial stress factors were reclamation; areas, port industry developments and aquaculture density. And the; sensitivity of Luoyuan Bay ecosystem was obviously intense, the main; sensitive factors were comprehensive index of marine life quality,; biological diversity indexes of zooplankton and intertidal benthic, and; species and density of fish larvae and eggs. Meanwhile, the adaptive; capacity of Luoyuan Bay ecosystem presented a good tendency. This; research can provide a reference for the vulnerability assessment of bay; ecosystem in similar regions.农业部2014年物种资源保护(渔业)资助项
