摘要
城市生态系统健康评价是当前热点研究问题.依据统计年鉴与公报资料,运用主成分分析方法筛选城市生态系统健康评价指标,同时结合模糊数学理论构建城市生态系统评价模型,进而对南京市2001 ～2011年间城市生态系统健康形势进行动态评价.研究表明：2001 ～2011年整个时间序列内,南京市城市生态系统健康状况总体呈现由健康水平向很健康水平缓慢过渡态势;11年间南京市较强的城市生态系统活力、组织结构和恢复力要素推动城市生态系统保持当前状态或进入更高级别健康状态,而生态系统服务功能和人群健康两要素总体健康状况不理想、波动性大,使得南京市城市生态系统总体健康水平得不到显著提升.
The health evaluation of urban ecosystem has been hotspots in current research.The indicators for the assessment of urban ecosystem health were sifted through the almanac as well as bulletin data via principal component analysis method and then an evaluation model of urban ecosystem health was constructed via fuzzy mathematics to evaluate urban ecosystem health of Nanjing during the period from 2001 to 2011.The results indicated that the urban ecosystem health of Nanjing was gradually developing from the level of health to especially health from 2001 to 2011 ; and during this period,the vigor,organization,resilience factor of Nanjing ecosystem might manifest strong capability to maintain current situation or promote it into the advanced health level while the capability of urban ecosystem service and human health factor in serious situation and with large fluctuation might seriously constrain the enhancement of health level of Nanjing ecosystem.
出处
《科学技术与工程》
北大核心
2014年第22期107-115,共9页
Science Technology and Engineering
基金
国家自然基金项目(41271098)
2007年城市气象科学研究基金(UMRF 200703)
江苏省自然科学基金资助项目(BK2006227)
江苏高校优势学科建设工程(PAPD)项目资助
关键词
城市生态系统
健康评价
主成分分析
模糊数学
南京
urban ecosystem
health evaluation
principal component analysis
fuzzy mathematics
Nanjing
