Xie Xuefeng, Pu Lijie
School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing 210023, China.
The Key Laboratory of the Coastal Zone Exploitation and Protection, Ministry of Land and Resources, Nanjing University, Nanjing 210023, China.
Int J Environ Res Public Health. 2017 Aug 21;14(8):940. doi: 10.3390/ijerph14080940.
Urban public health is an important global issue and receives public concern. The urban ecosystem health (UEH) indicator system was constructed with 27 assessment indicators selected from vigor, organization, resilience, service function, and population health, then the matter element analysis (MEA) and analytic hierarchy process (AHP) weighting method were used to assess the UEH of each city in Jiangsu Province during the period of 2000-2014. The results show that the overall ecosystem health status of each city shows continuous improvement. The UEH status of each city gradually transferred from poor, general, and medium condition to good and excellent condition. From the perspective of spatial distribution, the city's UEH showing a steady status after increasing for 10 years, and their spatial variations have gradually reduced. The UEH status in Southern Jiangsu and Central Jiangsu was better than that of Northern Jiangsu Province. From each component point of view, the vigor, resilience, and population health of each city in Jiangsu Province showed a trend of continuous improvement, while the organization and service function first increased and then decreased. The common limiting factors of UEH in Jiangsu Province were Engel's coefficient of urban households, number of beds of hospitals, health centers per 10,000 people, and total investment in the treatment of environmental pollution as percent GDP. These results help decision makers to make suitable decisions to maintain the UEH of each city in Jiangsu Province.
城市公共卫生是一个重要的全球性问题，受到公众关注。构建了城市生态系统健康（UEH）指标体系，从活力、组织、恢复力、服务功能和人口健康中选取了27个评估指标，然后采用物元分析（MEA）和层次分析法（AHP）加权法对江苏省各城市2000 - 2014年期间的城市生态系统健康状况进行评估。结果表明，各城市生态系统健康总体状况呈持续改善趋势。各城市的城市生态系统健康状况逐渐从较差、一般和中等状态转变为良好和优秀状态。从空间分布来看，各城市的城市生态系统健康状况在经过10年的增长后呈现稳定态势，其空间差异逐渐减小。苏南和苏中地区的城市生态系统健康状况优于苏北地区。从各个组成部分来看，江苏省各城市的活力、恢复力和人口健康呈持续改善趋势，而组织和服务功能则先上升后下降。江苏省城市生态系统健康的常见限制因素有城市居民恩格尔系数、医院床位数、每万人拥有的卫生机构数以及环境污染治理投资占GDP的比重。这些结果有助于决策者做出合适的决策，以维护江苏省各城市的城市生态系统健康。
