摘要
城市自然-生产-社会系统各功能内部存在一定的交互作用机理,本研究从生态位视角出发,以广州市自然子系统、生产子系统和社会子系统为研究对象,探讨近十年广州城市内各功能系统生态位和交互作用的动态变化规律,结果显示:大气环境污染生态位、三产生态位、社会基础设施适宜度生态位对自然子系统、生产子系统、社会子系统贡献最大,明显高于其他指标;对耦合协调度的计算发现,耦合协调趋势在自然子系统、生产子系统、社会子系统6种不同贡献份额的情况下是一致的,表明耦合协调度趋势几乎未受到6类系数比例的影响;从2004年起,广州市3个子系统的交互关系日趋优化,逐渐从基本不协调发展为中级协调,耦合协调度整体表征为上升状态;城市复合系统内部作用规律的揭示,对系统优化提升及合理配比技术、资本等生产要素在城市发展中的份额具有重要意义。
As habitats dominated by human activities,urbanization process therefore involves transformed natural environment,intensified economic activity and affected social system. There exists an extremely complex interactive coupling relationship among natural environment,production and society,which indicates a complicated urban natural-production-social system. Coordinated development of this compound system is not only the key issue in the city development but also a hot topic in sustainable development research. This paper establishes an index system for assessment of the level of the urban niche based on three aspects（natural subsystem,production subsystem and social subsystem）.Furthermore,each sub-system is weighted with pollution index and suitability index,by which niche of each sub-system is gained. Finally,a coupling coordination degree model is established,based on the physical model from 2004 to 2013 in Guangzhou city.The findings are as follows：1）atmospheric pollution niche,tertiary industrial niche,social infrastructure suitable niche give the greatest contribution to natural subsystem,production subsystem and social system;2）in the coupling coordination degree model,the six different proportion portfolio make no differences to the coupling coordination degree among three subsystems;3）the coupling coordination degree among three subsystems shows an overall growth trend,and type of the coupling coordination from unbalance to intermediate coordination.It is important to recognize the dynamic coupling law of these subsystems.And it is of great help for improving the urban compound system and reasonable distributing technology,capital and other thing in the city.
出处
《亚热带资源与环境学报》
2017年第2期65-75,共11页
Journal of Subtropical Resources and Environment
基金
国家自然科学基金资助项目(41601161)
关键词
生态位
自然-生产-社会
交互耦合关系
广州市
niche
nature-production-social system
interactive coupling relationship
Guangzhou city
