基于土地利用分析的兰州市城市区域生态安全格局研究

应用生态学报 ›› 2005, Vol. 16 ›› Issue (12): 2284-2290.

基于土地利用分析的兰州市城市区域生态安全格局研究

方淑波^1,2, 肖笃宁^3,4, 安树青¹

1. 南京大学生命科学学院, 南京 210093;
2. 兰州大学西部资源环境教育部重点实验室, 兰州 730000;
3. 中国科学院沈阳应用生态研究所, 沈阳 110016;4.中国科学院寒区旱区环境与工程研究所, 兰州 730000

收稿日期:2005-01-25 修回日期:2005-04-25 出版日期:2005-12-15 发布日期:2005-12-15
通讯作者: 肖笃宁
基金资助:
国家自然科学基金重点资助项目(90102004).

Regional ecosecurity pattern in urban area based on land use analysis:A case study in Lanzhou

FANG Shubo^1,2, XIAO Duning^3,4, AN Shuqing ¹

1. School of Biological Science, Nanjng University, Nanjing 210093, China;
2. Key Laboratory of Western Resource and Environment of Education Ministry, Lanzhou University, Lanzhou 730000, China;
3. Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
4. Cold and Arid Regions Environmental and Engineering Institute, Chinese Academy of Sciences, Lanzhou 730000, China

Received:2005-01-25 Revised:2005-04-25 Online:2005-12-15 Published:2005-12-15

摘要/Abstract

摘要： 中尺度区域生态安全的研究针对区域的实际生态安全问题展开,处于各尺度生态安全概念的核心地位.作为特殊的区域,以生态基础设施建设为核心的城市区域生态安全格局的构建成为城市可持续发展的基础内容.基于土地利用分析的定性、定量相结合的景观格局研究,生态价值评估以及社会经济驱动分析为城市区域生态安全格局的构建提供了一种可能.兰州市区域生态安全格局由生态保障体系、生态缓冲体系以及生态过滤体系所构成,经过分析,认为生态缓冲体系的建设成为兰州市区域生态安全格局构建的关键.城市未来扩展格局的定量分析成为兰州市区域生态安全格局安全级别的判别函数,根据不同的响应,把区域生态安全格局化分为低级、中级和高级3个级别.

关键词: 生态安全, 尺度, 城市, 区域生态安全格局, 构建

Abstract: Mid-scale regional ecosecurity,which takes practical ecosecurity issues as its priority,should be viewed as the core of the multi-scale concept of ecosecurity.For urban area,a special region taking ecological infrastructure as its core mission,the construction of regional ecosecurity pattern may provide a good chance to realize its sustainable development.Based on land use analysis,a qualitative and quantitative research on the landscape pattern,ecovalue evaluation,and driving force analysis of social economy could provide an effective approach to construct the ecosecurity pattern in urban area.This study showed that in Lanzhou,the ecosecurity pattern consisted of three parts,i.e.,eco-safeguarding system,eco-buffering system and eco-percolating system,among which,eco-buffering system was the decisive part determining ecosecurity pattern construction.The quantitative analysis of urban spatial expansion pattern was taken as the decisive function to determine the security level of the ecosecurity pattern,which was divided into low,middle and high levels.

Key words: Ecosecurity, Scale, Urban area, Regional ecosecurity pattern, Construction

中图分类号:

Q149

方淑波, 肖笃宁, 安树青. 基于土地利用分析的兰州市城市区域生态安全格局研究[J]. 应用生态学报, 2005, 16(12): 2284-2290.

FANG Shubo, XIAO Duning, AN Shuqing . Regional ecosecurity pattern in urban area based on land use analysis:A case study in Lanzhou[J]. Chinese Journal of Applied Ecology, 2005, 16(12): 2284-2290.

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