区域生态系统可持续发展敏感因子及敏感区分析

生态敏感因子和生态敏感区的识别是评价区域生态系统发展可持续性、制订可持续发展战略及实施综合措施的关键步骤．本文以青岛市城阳区为例，分析了区域生态系统可持续发展的主要生态敏感因子及生态敏感区．结果表明，耕地资源危机、淡水资源短缺、海水入侵、风暴潮、洪涝灾害、水土流失、酸雨及地面水污染等是限制该区域生态系统可持续发展的主要生态敏感因子；农田、水源地、海岸带、河岸带及城镇等为其主要生态敏感区．在此基础上，提出了促进该区域生态系统可持续发展的对策建议．

Analysis of sensitive factors and regions for the sustainable development of regional ecosystem.

The identification of key ecologically sensitive factors and regions is a crucial step to assess the sustainability of regional ecosystem, to work out the strategies and to implement the comprehensive measures for sustainable development. As a case study, the analysis of ecologically sensitive key factors and regions for the sustainable development of the regional ecosystem in Cheng-Yang District, Qingdao City is performed. The results show that the main ecologically sensitive factors which restrict the sustainable development of the regional ecosystem are the crisis of arable land, the shortage of freshwater resource, the encroachment of sea water, the storm surge, flood calamity, soil erosion, acid rain and surface water contamination; and that the main ecologically sensitive regions encompass farmland, drinking water source, coastal zone, river bank zone and town. On the basis of above analysis, the countermeasures for promoting the sustainable development of the regional ecosystem are suggested.