胶州湾海岸带生态环境脆弱性空间建模与分析

胶州湾对青岛市的生态环境有着重要影响。由于经济飞速发展,海岸带生态环境问题日益严峻,对胶州湾海岸带生态环境脆弱性的研究具有重大意义。以卫星遥感影像为主要数据源,基于层次分析法,结合海平面上升灾害风险指数、健康指数等,建立了胶州湾海岸带生态环境脆弱性空间模型。分析结果表明:胶州湾海岸带生态环境脆弱性值为5.64~86.20,随着海水水质变差,物种种类减少等自然因素的影响,以及岸滩环境变化等人为活动的加剧,该值呈现上升趋势。经济发展早、速度快的市区生态环境脆弱性较高,后期发展起来的胶州市、城阳区生态环境脆弱性较低。该模型的建立及其对胶州湾生态环境现状的分析评价结果,能够为改善胶州湾生态环境建设及其应对措施的制定提供参考。

Spatial Modeling and Analysis of Habitat Vulnerability in the Coastal Zone of Jiaozhou Bay

J iaozhou Bay has an important impact on the ecological environment of Qingdao City. However, the ecologi- cal environment of the coastal zone has worsened with the rapid development of economy. This study is duly on the assessment of the habitat vulnerability in the coastal zone of Jiaozhou Bay. The space model of the Habitat vulnera- hility in the given area was established using satellite remote sensing image for the main data source. The analytic hi- erarchy process （AHP） was employed with rising sea level disaster risk index and health index. The results show that the value of the habitat vulnerability in this area is between 5.64-86.20;the value increases with the influence of the water quality variation, reduction of species ,and aggravating human activities. The habitat vulnerability is high in the early-developed urban area while comparatively low in the late-developed Jiaozhou City and Chengyang Dis- trict. This modeling analysis provides reference and guide for the improvement of Jiaozhou Bay ecological environ- ment and its countermeasures construction.