干旱区研究 ›› 2011, Vol. 28 ›› Issue (6): 974-979.

• 生态与环境 • 上一篇    下一篇

城市化对生态系统服务功能影响的实证研究——以西安市南郊为例

 周忠学1, 仇立慧2   

    1. 陕西师范大学 旅游与环境学院,陕西 西安 710062
    2. 西安文理学院 旅游与环境系,陕西 西安 710065
  • 收稿日期:2010-11-15 修回日期:2010-12-24 出版日期:2011-11-15 发布日期:2012-01-16
  • 作者简介:周忠学(1972-),男,甘肃崇信人,博士,副教授,主要从事区域经济发展、资源环境评价等方面的研究.E-mail:zhouzhx@snnu.edu.cn
  • 基金资助:

    陕西师范大学优秀科技预研项目(200902014);中央高校基本科研业务费专项资金资助(GK200902022)

Experimental Study on Effect of Urbanization on Service Functions of Ecosystems — A Case Study in Southern Suburbs of Xi’an City

 ZHOU  Zhong-Xue1, CHOU  Li-Hui2   

    1. College of Tourism and Environmental Sciences, Shaanxi Normal University, Xi’an 710062, China
    2. Department of Tourism and Environmental Sciences, X[JP8]i’[JP]an University of Arts and Sciences, Xi’an 710065, China
  • Received:2010-11-15 Revised:2010-12-24 Online:2011-11-15 Published:2012-01-16

摘要: 城市化空间格局控制着生态系统的动态过程。以西安市南郊为样区,应用GIS和RS技术方法,通过对城市化格局与生态系统服务功能空间格局及其相互关系的分析,实证研究了城市化对生态系统服务功能的影响。得出:① 西安市南郊城市化水平具有明显的圈层空间格局,即离城市建成区越远,城市化水平越低;② 生态系统服务功能离城市核心区越远,生态服务功能就越强,建成区是生态系统服务功能密度的低值区;③ 综合城市化水平与生态系统服务功能总值之间存在比较强的负相关关系,即城市化必然导致生态系统服务总功能的下降,但对不同的生态系统服务功能的影响不同,对废物处理功能、食物生产功能、土壤形成与保护功能、气候调节功能等具有比较显著的负面影响,而对生物多样性保护功能、原材料生产功能和娱乐文化功能等的影响不显著

关键词: 城市化, 生态系统, 服务功能, 空间格局, 西安市

Abstract: The spatial pattern of urbanization controls the dynamic process of ecosystems. In this paper, the GIS and RS methods were used to carry out an experimental study on the effect of urbanization on the service functions of ecosystems after analyzing the spatial patterns of urbanization, service functions of ecosystems and interrelations among them in southern suburbs of  Xi’an  City. The conclusions are as follows: ① There was an obvious circular spatial pattern of urbanization in southern suburbs of  Xi’an City, that is the farther the regions away from the builtup area of the city were, the lower the urbanization level was; ② The farther the ecosystems away from the builtup area were, the stronger the service functions of ecosystems were, and the service value of ecosystem per hm2 was the lowest in the builtup area; ③ There was a strong negative correlation between the comprehensive urbanization level and the total value of service functions of ecosystems. There were also the quite remarkable negative impacts of urbanization on the service functions of ecosystems, but the impacts were different from different service functions of ecosystems. There were the significant negative impacts on waste treatment, food production, soil formation and conservation and climate regulation in the study area, but the impacts on biodiversity conservation, raw material production and entertainment were not remarkable.

Key words: urbanization, ecosystem, service function, spatial pattern, Xi’an City

中图分类号: 

  • X21