• 研究报告 •

### 基于分形理论的云南红河县景观斑块尺度效应

1. （甘肃农业大学资源与环境学院， 兰州 730070）
• 出版日期:2015-09-10 发布日期:2015-09-10

### Landscape patch scale effect based on fractal theory in Honghe County of Yunnan Province.

YANG Huan, LIU Xue-lu**

1. (College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou 730070, China)
• Online:2015-09-10 Published:2015-09-10

Abstract:

Based on fractal theory and grid method, this study examined the number of landscape patch, relative frequency, average fractal dimension and stability index in Guipu Village, Honghe County of Yunnan Province. The results showed that the landscape patches were mainly composed of shrub land, dry land, paddy field, and other grassland, among which paddy field had the largest area, and bare land smallest. The number of each landscape patch and index of stability increased progressively while the variation of relative frequency and average fractal dimension decreased gradually as the observational scale (grain) decreased from 4000, 2000, 1333, 1000, 800, to 667 m. The fractal dimension of each landscape patch varied from 1.029 to 1.959, with rivers the most complicated shapes and rural residential area the simplest. The fractal dimension of landscape patches showed medium or small variation affected by scales, and the number of landscape patches was more significantly affected by observational scales than by the fractal dimension of each landscape patch, which illustrated the spatial distribution pattern of landscape patches in the research area.