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中国沙漠 ›› 1999, Vol. 19 ›› Issue (4): 375-377.

• 论文 • 上一篇    下一篇

沙尘暴多发区土地风蚀荒漠化诊断评价方法

林进, 孙司衡, 王君厚   

  1. 国家林业局调查规划院, 北京 100714
  • 收稿日期:1999-04-27 修回日期:1999-05-25 出版日期:1999-12-20 发布日期:1999-12-20
  • 作者简介:林进(1943-),男(汉族),福建漳平人,高级工程师,主要从事森林资源调查及荒漠化监测工作。
  • 基金资助:
    国防科工委九·五攻关项目"沙尘暴的卫星遥感监测与灾情评估"(Y97#10)

Evaluation Methodology of Land Desertification Level Caused by Wind erosion in the Sand -dust Storm Frequently occurring Area

LIN Jin, SUN Si heng, WANG Jun hou   

  1. Academy of Forest Inventory and Planning, The National Bureau of Forestry, Beijing 100714, China
  • Received:1999-04-27 Revised:1999-05-25 Online:1999-12-20 Published:1999-12-20

摘要: 利用卫星遥感技术,结合地面观测,确定植被盖度、裸地占地率和土壤质地3项因子为沙尘暴多发区风蚀荒漠化土地现状程度评价指标,并给出程度评价模型;在此基础上,考虑到非荒漠化土地及各程度荒漠化土地在面积上的组成比例,给出区域性土地风蚀荒漠化总体水平评价模型;并通过对内蒙古赤峰市及阿拉善盟两地区的土地风蚀荒漠化总体水平评价验证,证明此模型可作为沙尘暴多发区任意大小区域土地风蚀荒漠化水平评价方法。

关键词: 沙尘暴, 土地风蚀荒漠化, 评价方法

Abstract: In this paper, the coverage of vegetation, the occupation ratio of bare land and the soil texture are determined as the evaluation indicators of the degree of wind eroded desertified land in frequently occuring area of sand dust storm. Based on these 3 indicators a mathematical model to determine the degree of wind eroded desertified land was set up. Meanwhile, considering the ratio of non desertified land area and different degree desertified land area, a regional evaluation model of land desertification level was given out. This evaluation system is testified to be applicable by using remote sensing technique and field investigation in the frequently occurring area of sand dust storm.

Key words: sand dust storm, wind erosion desertification, evaluation methodology

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