Correlation of Karst Rock Desertification and Land Use Patterns in Different Geomorphologic Environment

GAO Jian-fei; XIONG Kang-ning

doi:10.13961/j.cnki.stbctb.2014.03.019

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Correlation of Karst Rock Desertification and Land Use Patterns in Different Geomorphologic Environment

- Correlation of Karst Rock Desertification and Land Use Patterns in Different Geomorphologic Environment
- Bulletin of Soiland Water Conservation Vol. 33, Issue 3, Pages: 97-101(2014)
- 作者机构：
  
  1. 贵州省山地资源研究所,贵州,贵阳,550001
  2. 国家喀斯特石漠化防治工程技术研究中心,贵州,贵阳,550001
  3. 贵州师范大学中国南方喀斯特研究院,贵州,贵阳,550001
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2014.03.019
  CLC：
- Published：2014
- 稿件说明：
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GAO Jian-fei, XIONG Kang-ning. Correlation of Karst Rock Desertification and Land Use Patterns in Different Geomorphologic Environment[J]. Bulletin of Soiland Water Conservation, 2014, 33(3): 97-101.
DOI：

GAO Jian-fei, XIONG Kang-ning. Correlation of Karst Rock Desertification and Land Use Patterns in Different Geomorphologic Environment[J]. Bulletin of Soiland Water Conservation, 2014, 33(3): 97-101. DOI： 10.13961/j.cnki.stbctb.2014.03.019.

摘要

为探明不同地貌环境条件下喀斯特石漠化分布的土地利用类型异同特征

利用2008年SPOT影像数据(2.5 m分辨率)

在3S技术支持下

定量研究了喀斯特盆地、山地和峡谷3类环境石漠化分布的土地利用类型。结果表明: (1) 旱地、灌木林地、疏林地、天然草地、荒草地和裸岩地可能发生石漠化。其中:灌木林地最严重

为中度石漠化;疏林地、天然草地和荒草地可能发生强度及以下石漠化;旱地可发生各等级石漠化

裸岩地100%为强度及以上石漠化。(2) 不同环境条件下的同一土地利用类型石漠化发生率及强度存在差异。(3) 总体上

高原峡谷环境石漠化发生率最高

等级最强

盆地次之

山地最小。(4) 峡谷环境和盆地环境石漠化演变主要表现在强度升高上

喀斯特山地环境石漠化发生面积及强度都可能加大。

Abstract

In order to examine disparity and similarity of landuse types in karst rocky desertification area under different environmental conditions

a quantitative research on basin

mountain and gorge was made with support by 3S technology

using SPOT images(2.5 m resolution) in 2008. Results are as follows: (1) Rocky desertification would occur potentially in dryland

shrubland

sparse woodland

natural grassland

wild grassland and bared rocky area. In detail

shrubland would degrade into the moderate rocky desertification area; sparse woodland

natural grassland and wild grassland would degrade into the serious rocky desertification area or below; inferior ranks to it dryland would potentially degrade into any type of rocky desertification; and 100% bared rocky area would degrade into the serious rocky desertification area or worse. (2) There were different rocky desertification rates and strengths in the same landuse type under different environmental conditions. (3) Generally

the geomorphologic types

in order of decreasing rocky desertification rate

were gorge

basin and mountain. (4) Rocky desertification process in gorge and basin areas showes intensity increase

and the process possibly would also showes phenomenon as enlarge the area and increase intensity of rocky desertification in karst mountainous environment.

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references

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