Landscape Pattern at Different Elevations Above Sea Level in Three Gorges Area Using 3S一A Case Study in Wushan County

SHAO Huai-yong; XIAN Wei; ZHOU Wan-cun

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Landscape Pattern at Different Elevations Above Sea Level in Three Gorges Area Using 3S一A Case Study in Wushan County

- Landscape Pattern at Different Elevations Above Sea Level in Three Gorges Area Using 3S一A Case Study in Wushan County
- Bulletin of Soiland Water Conservation Vol. 24, Issue 3, Pages: 54-57(2005)
- 作者机构：
  
  中国科学院水利部成都山地灾害与环境研究所,四川,成都,610041
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2005
- 稿件说明：
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SHAO Huai-yong, XIAN Wei, ZHOU Wan-cun. Landscape Pattern at Different Elevations Above Sea Level in Three Gorges Area Using 3S一A Case Study in Wushan County[J]. Bulletin of Soiland Water Conservation, 2005, 24(3): 54-57.
DOI：

SHAO Huai-yong, XIAN Wei, ZHOU Wan-cun. Landscape Pattern at Different Elevations Above Sea Level in Three Gorges Area Using 3S一A Case Study in Wushan County[J]. Bulletin of Soiland Water Conservation, 2005, 24(3): 54-57. DOI：

摘要

在3S技术的支持下

采用景观面积比、分维数、多样性指数、斑块平均面积、破碎度等景观格局指数分析了三峡库区内巫山县不同高程带的景观格局。结果表明

不同景观要素在同一高程带内的格局特征不同。通过对不同高程带景观格局的综合分析可知

随高程的增加

景观多样性指数逐渐减小

分别为1.332

1.242

1.203

1.061

0.837;景观斑块的分维数依次是1.239

1.189

1.176

1.173

1.208;斑块平均面积分别为64.93

35.29

39.65

59.40

101.03hm2

呈现出两头大中间小的状态。

Abstract

Abstrcat Supported by GIS

landscape pattern at different elevations above sea level in the Three Gorges area is determined from the proportion of land area at specified elevations compared with total landscape area

the fractal dimension of landscape patches

the landscape diversity index

the mean patch area and the landscape fragment index. A key conclusion is that the landscape pattern of similar landscape components varies at the same elevation; Results from the broad scale pattern of landscape characteristics at different elevations are as follows: landscape diversity decreases (1.332

1.242

1.203

1.061

and 0.837) with the increasing of elevation; the fractal dimension varies (1.239

1.189

1.176

1.173 and 1.208) with the increasing of elevation; and the mean patch area varies (64.93

35.29

39.65

59.4

101.03 hm~2) with the increasing of elevation

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