A Study on Fractal Dimension and Stability of Landuse Types——A Case Study of Pucheng County,Shaanxi Province

QIN Zhan-fei; CHANG Qing-rui

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A Study on Fractal Dimension and Stability of Landuse Types——A Case Study of Pucheng County,Shaanxi Province

- A Study on Fractal Dimension and Stability of Landuse Types——A Case Study of Pucheng County,Shaanxi Province
- Bulletin of Soiland Water Conservation Vol. 31, Issue 1, Pages: 115-118(2012)
- 作者机构：
  
  西北农林科技大学资源环境学院，陕西杨凌,712100
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- Published：2012
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QIN Zhan-fei, CHANG Qing-rui. A Study on Fractal Dimension and Stability of Landuse Types——A Case Study of Pucheng County,Shaanxi Province[J]. Bulletin of Soiland Water Conservation, 2012, 31(1): 115-118.
DOI：

QIN Zhan-fei, CHANG Qing-rui. A Study on Fractal Dimension and Stability of Landuse Types——A Case Study of Pucheng County,Shaanxi Province[J]. Bulletin of Soiland Water Conservation, 2012, 31(1): 115-118. DOI：

摘要

以陕西省蒲城县土地利用空间数据库为基础

应用GIS技术及分形理论对土地利用类型的分形及稳定性进行了分析研究。将土地利用类型划分为6类:耕地、园地、林地、草地、工矿居民地和其他用地

并进行各土地利用类型图斑分形维数分析。结果表明

土地利用类型的分布具有分形结构

各土地利用类型分维数(D)介于1.344～1.522。根据分维数对各土地利用类型稳定性排序:林地>工矿居民地>其他用地>耕地>草地>园地。复杂的地貌类型对土地利用类型分维数有重要影响

分维数能较好地反映各土地利用类型复杂程度及稳定性

表明分维数成为土地利用类型结构相关研究的有用指标。

Abstract

Based on the spatial landuse database of Pucheng County in Shaanxi Province

fractal dimension and stability of landuse types are studied by using GIS technology and fractal theory.The landuse is classified into 6 types: cropland

garden plot

woodland

grassland

industrial and residential areas

and other lands.The fractal dimension for the patches of the landuse types is analyzed.Results showed that all the landuse types have fractal characteristics and the fractal dimension(D) values vary from 1.344 to 1.522.In terms of the landuse stability given by the fractal dimension

the order of the landuse types from high to low is woodland

industrial and residential areas

other lands

cropland

grassland

and garden plot.Complicated geomorphic type is of importance to the fractal dimension of landuse type and the fractal dimension values may better indicate landuse structure and stability.Fractal dimension can be used as an effective index in the researches on landuse structure in Pucheng County.

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