地理科学进展 ›› 2011, Vol. 30 ›› Issue (5): 577-584.doi: 10.11820/dlkxjz.2011.05.009

• 土地利用 • 上一篇    下一篇

城市承载力分区方法研究

王丹1,2, 陈爽1   

  1. 1. 中国科学院南京地理与湖泊研究所, 南京 210008;
    2. 中国科学院研究生院, 北京 100049
  • 收稿日期:2010-10-01 修回日期:2011-01-01 出版日期:2011-05-25 发布日期:2011-05-25
  • 通讯作者: 陈爽(1968-),女,湖南湘潭人,研究员。E-mail: schens@niglas.ac.cn E-mail:schens@niglas.ac.cn
  • 作者简介:王丹(1982-),女,辽宁锦州人,博士研究生,主要从事城市生态研究。E-mail: marin0602@sohu.com
  • 基金资助:

    中国科学院知识创新工程重要方向项目(KZCY2-YW-339)。

Study on the Method of Zoning by Urban Carrying Capacity

WANG Dan1,2, CHEN Shuang1   

  1. 1. Nanjing Institute of Geography and Limnology, CAS, Nanjing 210008, China;
    2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2010-10-01 Revised:2011-01-01 Online:2011-05-25 Published:2011-05-25

摘要: 城市承载力分区以城市系统为分区对象,从资源环境与经济人口协调发展的角度出发,运用生态学和地理学理论,在分析城市承载力空间分异规律的基础上,将区域空间划分为不同类型承载区。城市承载力分区是进行城市规划和建设的基础性工作,是城市在由无序蔓延向有序发展转变时期的特殊需要。本文对城市承载力分区的理论、方法、指标体系等进行了初步探讨,基于城市承载力“状态-压力-响应”概念模型提出综合评价指标体系,将区域分为高、中、低3 个承载区,进一步按承载力制约因素将低承载区分为可调控区及不可调控区。在此基础上,将城市承载力分区方法应用于常州,通过实例研究对承载力分区方法进行补充,并将研究结果作为常州城市发展和建设的空间依据。

关键词: 常州, 城市承载力, 地理分区, 调控区分类, 可调控因素

Abstract: As the scientific groundwork for the urban general planning and sustainable development, urban carrying capacity (UCC) regionalization can provide spatial directions based on the regional disparities of the natural, social, economic and environmental characteristics. Because the theoretical basis of regionalization comes from geographical features spatial difference, the definition of UCC cannot reflect the inner city spatial difference, and hence cannot accommodate the demand of UCC zoning scale. After looking back and comparing the related concepts of UCC, we define UCC as the population and social economic activities that the natural resource, environment, urban infrastructure and commonality service can sustain within a fixed urban area, in a particular period and according to pertinent criteria of living quality.
This paper aims at developing an integrated method of zoning by UCC which can guide planning of resource utility, environment protection and infrastructure construction in the city. Firstly we presented the structure of UCC. The UCC is inherently a kind of complex ability consisting of support, pressure and regulation which are respectively associated with resource and environment foundation, population growth and human self-regulation. Secondly we discussed the relationship between traditional geographical regionalization and zoning by UCC. Based on a review about the development of regionalization we further concluded the characteristics of zoning by UCC, which are comprehensiveness, relativity and improvement. Thirdly we divided the process of zoning by UCC into 5 steps: index system and spatial cell for UCC evaluation, spatial database, UCC evaluation, divisions of improvement zones and non-improvement zones and making suggestions. Based on the index system for UCC evaluation, it focuses the discussion on the“state-pressure-response”model of UCC evaluation to get UCC indicator. Furthermore, non-improvement zone and several kinds of improvement zones are divided by the relevant restrictive factors.
We took Changzhou city as a case study for zoning by UCC. The index system for Changzhou UCC evaluation is composed of 3 parameters. There are 4 secondary indicators in the support parameter, including water quality, air, eco-environment and geological condition which is the only non-improvement factor in the index system. Moreover, population, economy and land-use have been quantified by several tertiary indicators in the press parameter. And the adjustment parameter has industry, traffic and infrastructure. Using GIS grid analysis we divided the study area into 1886 grids of 1 km×1km to get the values of UCC indicator through the evaluation model. Three UCC zones have been identified by the value of UCC indicator. Based on the primary factors we concluded 5 types of zones, such as water environment improvement hot spots, industrial structure adjustment hot spots, and limited development spots. It is found that (1) the index is limited by the scale of study area; (2) the non-improvement factor has inherently historical limitation; (3) the areas which have important ecological functions or historical values in the high capacity zone or the mid capacity zone must be conserved; (4) some other methods of UCC gross estimate can be used for zoning.

Key words: Changzhou, improvement zone classification, improvement zoneel ements, UCC, zoning