地理科学 ›› 2005, Vol. 25 ›› Issue (6): 671-677.doi: 10.13249/j.cnki.sgs.2005.06.671

• 论文 • 上一篇    下一篇

中国土地利用空间分形结构及其机制

朱晓华1, 蔡运龙2   

  1. 1. 中国科学院地理科学与资源研究所, 北京 100101;
    2. 北京大学资源环境地理学系, 北京 100871
  • 收稿日期:2004-09-18 修回日期:2005-01-25 出版日期:2005-11-20 发布日期:2005-11-20
  • 基金资助:
    国家自然科学基金(批准号:40335046、40301002)。

Fractal Analysis of Land Use in China

ZHU Xiao-Hua1, CAI Yun-Long2   

  1. 1. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101;
    2. Department of Resource & Environment & Geography, Peking University, Beijing 100871
  • Received:2004-09-18 Revised:2005-01-25 Online:2005-11-20 Published:2005-11-20

摘要: 应用分形理论对中国土地空间分形结构及其机制问题进行了有益探讨。首先计算了中国不同土地利用类型空间结构的分维与稳定性指数;其次,分析了北京、安徽、江苏、广东、贵州、新疆、西藏、辽宁等8省区的土地分形结构;进而,在计算北京等8省区土地结构分维与图斑数、平均图斑面积、平均图斑形状指数、第一产业、第二产业、第三产业关联度的基础上,探讨了区域土地图斑数和相应图斑形状指数对土地空间结构分维的重要影响。指出:土地结构分维所能体现出的信息主要还是受到土地类型本身几何属性的影响。

Abstract: Mandelbrot enunciated the uncertainty of the length of a coastline in his paper"How long is the coastline of Britain?"published in " Science" in 1967. The fractal concept was presented for the first time in that paper and has been applied to many fields ever since. It is a new method to describe the complexity of nature. Applications of fractal theory to LUCC have involved in calculating of fractal dimensions of different land types, right research methods, fractal description of land structure and its evolution, fractal modeling of regional landscape patterns, etc. Although related studies have been done in such aspects, few references on spatial fractal characters of China's land use and its fractal mechanism have been seen to date. The problem is studied in this paper. At first, the fractal dimensions and stability indexes of spatial structure of different land types of China are calculated. Secondly, the fractal characters of land use structure in eight typical provinces of China, including Beijing, Anhui, Jiangsu, Guangdong, Guizhou, Xinjiang, Tibet, and Liaoning, are analysed, the physical mechanism of spatial fractal structure of land use is also revealed. Finally, it is indicated that patch number and average shape indexes of different regions are the most important factors that influence the land spatial fractal structure. In other words, the land spatial fractal structures of eight provinces are mainly influenced by the geometric characteristic of spatial pattern of land use.

中图分类号: 

  • P941.7