摘要
针对港湾地区城市发展进程中的快速、大规模变化等特征,采用突变级数法对厦门市生态系统健康(1996～2006年)进行了定量评估和动态趋势分析。该方法很大程度上避免了人为制定权重的主观性,同时避免了主观判断健康标准的不确定性。研究结果表明:(1)厦门城市生态系统健康趋势走线第1个拐点出现在1999年,主要反映出大范围、高强度的填海造地,破坏森林植被等生态干扰远远超过了生态系统自身的修复能力;(2)厦门城市生态系统健康趋势走线第2个拐点出现在2001年,主要受其海湾型生态城市重大战略转变的影响;(3)突变级数法捕捉到了快速城市化背景下,厦门生态系统短期、快速的突变过程,更为客观地揭示出其生态系统健康演变的规律。
In the context of large-scale and rapid changes in coastal city ecosystems driven by recent urbanization, this research evaluated the ecological health status and trends of Xiamen City from 1996 through 2006 using the quantitative catastrophe progression method （CPM）. The results show that CPM has less subjectivity than traditional methods in weight evaluation and uncertainty in estimating the standard of health subjectively. The ecosystem health curve of Xiamen City displays its first inflexion in 1999, which can be attributed to the large-scale and profound ecological disturbance from major projects such as sea reclamation and deforestation. The projects .overstepped the ability of Xiamen City＇s ecosystem to ecologically remediate the disturbance, The second inflexion of Xiamen City＇s ecosystem health curve appears in 2001 due to the significant strategic transformation from its original island-based configuration to a new larger bay-area-based coo-city. CPM captures short-term changes in Xiamen City＇s ecosystem under rapid urbanization, and provides an objective assessment of changes in Xiamen City＇s ecosystem health.
出处
《生态学报》
CAS
CSCD
北大核心
2008年第12期6312-6320,共9页
Acta Ecologica Sinica
基金
国家自然科学基金资助项目(40576024)
国家海洋局908专项资助项目(908-02-04-08)
南京大学人才引进培养基金(2007年度)~~
关键词
快速城市化
生态系统健康
突变级数法
突变模型
厦门
rapid urbanization
ecosystem health
catastrophe progression method
catastrophe progression model
Xiamen City
