GIS-based Assessment on Sensitivity to Land Desertification in Gansu Province

LIU Kang; XU Weihua; OUYANG ZhiYun; WANG XiaoKe

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GIS-based Assessment on Sensitivity to Land Desertification in Gansu Province

- GIS-based Assessment on Sensitivity to Land Desertification in Gansu Province
- Bulletin of Soiland Water Conservation Vol. 21, Issue 5, Pages: 29-31(2002)
- 作者机构：
  
  1. 西北大学环境科学系,陕西,西安,710069
  2. 中国科学院生态环境研究中心系统生态重点实验室,北京,100085
- 作者简介：
- 基金信息：
- DOI：
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- Published：2002
- 稿件说明：
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LIU Kang, XU Weihua, OUYANG ZhiYun, et al. GIS-based Assessment on Sensitivity to Land Desertification in Gansu Province[J]. Bulletin of Soiland Water Conservation, 2002, 21(5): 29-31.
DOI：

LIU Kang, XU Weihua, OUYANG ZhiYun, et al. GIS-based Assessment on Sensitivity to Land Desertification in Gansu Province[J]. Bulletin of Soiland Water Conservation, 2002, 21(5): 29-31. DOI：

摘要

以甘肃省为对象

选择了湿润指数、大风天数、土壤质地和冬春季地表植被覆盖度做为土地沙漠化敏感性评价因子

采用地理信息系统技术进行土地沙漠化敏感性评价。并对单因子敏感性和综合敏感性的空间分布格局进行了分析

结果表明河西地区以高度敏感为主

陇中、陇东黄土高原以中度和轻度敏感为主

祁连山地、陇南山地和甘南高原为轻度敏感或不敏感

Abstract

As a case study in Gansu province

the damp index

days on strong wind

soil texture and vegetation cover in winter and spring in Gansu province on sensitivity to land desertification and their spatial heterogeneity are assessed based on GIS. The result indicates that high sensitive region in Hexi area

middle and light sensitive region in Longzhong and Longdong loess plateau

Qilian mountainous region

Longnan mountainous region and Gannan plateau are light sensitive or non sensitive area.

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Keywords

references

UNEP. Status of Desertification and Implementation of the UN Plan to combat Desertification[M]. Nairobi, 1992.

朱震达,等.中国土地沙质荒漠化[M].北京:科学出版社,1994.

欧阳志云,王效科,苗鸿.中国生态环境敏感性及其区域差异研究[J].生态学报,2000,20(1):9-12.

甘肃省土地管理局.甘肃土地资源[M].兰州:甘肃科学技术出版社,1999.

张国平,张增祥,刘纪远.中国土壤风力侵蚀空间格局及驱动因子分析[J].地理学报,2001,56(2):146-157.

(美)ERSI INC著,曲国胜,等译. ArcView GIS使用手册[Z]. 北京:地震出版社,2000.

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Related Institution

Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling

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Institute of Soil and Water Conservation, CAS and MWR, Yangling District

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