地理研究

地理研究 ›› 1995, Vol. 14 ›› Issue (1): 8-16.doi: 10.11821/yj1995010002

• 论文 • 上一篇    下一篇

喀斯特洼地的分形特性研究*

宋林华1, 房金福1, 邓自民2, 刘宏3   

  1. 1. 中国科学院、国家计划委员会地理研究所 北京 100101;
    2. 贵州山地资源所 贵阳 550001;
    3. 云南省地理所 昆明 650223
  • 收稿日期:1993-12-10 修回日期:1994-06-09 出版日期:1995-03-15 发布日期:1995-03-15
  • 基金资助:
    *国家自然科学基金(49070012);贵州省科学技术基金(黔基合计字(1991)3114号)

FRACTAL AND GEOMETRY OF KARST DEPRESSIONS IN SOUTH CHINA

Song Linhua1, Fang Jinfu1, Deng ziming2, Liu Hong3   

  1. 1. Institute of Geography, Chinese Academy of Sciences, Beijing 100101;
    2. Guizhou Institute of Mountaineous Resources, Guiyang 500001;
    3. Yunnan Institute of Geography Kunming, 650223
  • Received:1993-12-10 Revised:1994-06-09 Online:1995-03-15 Published:1995-03-15

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摘要： 以贵州高原中部普定马官地区和云南高原边缘西畴峰丛-洼地区为试验区,研究和探讨了喀斯特洼地发育过程中的分形特性。

关键词: 喀斯特洼地, 分形维, 分形几何图形

Abstract: Maguan karst landforms in the central Guizhou Plateau and Xichou fengcong－depression landscape in the southeastern Yunnan Plateau were chosen as the sample regions to study the fractal and geometry of karst depressions 21 closed depressions and 3 poljes have been developed in the Maguan area of Puding county,the average area of the depressions is 0.72 km2, the mean edge number is 7.38 and the average perimeter is 3.41 km which is similar to the length of perimeter of 7 edge depressions.The fractal dimension of perimeter L(δ)with area A(δ)of the depressions is 1.23 and the dimension of edge number N(δ)and perimeters L(δ)is 2.928.64 depressions are developed in the area of 23.75 km2 in Xichou fengcong-depression landscape;the average edge number is 8.27,the mean area is 0.371 km2 and the perimeter is 2.448 km.In 64 depressions,54 have been captured each other and 129 edges have drifted more or less.The fractal dimension of perimeters L(δ)with the area A(δ)is 1.10,the dimension of edge numbers N(δ)and perimeters L(δ)of karst depressions is 2.938.The fractal dimensions are existed in the evolution processes of karst depressions and the depressions have the fractal geometry.

Key words: Karst depression, Fractal dimension, Fractal geometry

PACS: 

  • 931.5