img

官方微信

高级检索

中国沙漠 ›› 1997, Vol. 17 ›› Issue (3): 286-290.

• 研究论文 • 上一篇    下一篇

遥感技术在荒漠化滥测中的应用──以陕西榆林市芹河乡为例

查勇1, 高家庆2, 倪绍祥1, 蒋建军1, 刘彦随1   

  1. 1. 南京师范大学地理系, 南京 210097;
    2. 奥克兰大学地理系, 奥克兰 新西兰
  • 收稿日期:1996-11-15 修回日期:1996-12-25 出版日期:1997-09-20 发布日期:1997-09-20
  • 作者简介:查勇,男,1963年出生,理学硕士,讲师。主要从事遥感与GIS方面的教学和研究。

APPLICATION OF REMOTE SENSING TECHNOLOGYON DESERTIFICATION DYNAMICS:A CASE STUDY IN YULIN CITY,SHAANXI PROVINCE

Zha Yong1, Gao Jiaqing2, Ni Shaoxiang1, Jiang Jianjun1, Liu Yansui1   

  1. 1. Department of Geography, Nanjing Normal University, Nanjing 210097;
    2. Department of Geography, Auckland University, Auckland, New Zealand
  • Received:1996-11-15 Revised:1996-12-25 Online:1997-09-20 Published:1997-09-20

摘要: 阐述了利用航片及精处理过的TM影像编制1:10万陕西省榆林市芹河乡土地荒漠化分布图的方法及过程。1960年及1987年分布图的定量分析比较表明,该乡荒漠化现象在东部经过治理得到了抑制,而原先多为植被覆盖的西部则出现了耕地、牧地退化成沙地。27年间全乡林地增加了13.13 km2,沙地、耕地及牧地分别减少了7.18 km2、1.03 km2和5.98 km2,结果表明建造防护林是治沙的有效途径。

关键词: 土地荒漠化, 定量遥感, 变化监测

Abstract: The methodology to generate desertification distribution maps from black and white,color infrared aerial photographs and a geometrically rectified TM image is described.The comparison of two maps of Qinhe township,Yulin City,Shaanxi Province in 1960 and 1987 reveals that there is a decreased desertified land scope on the eastern part of the study area where was ever affected by desertification severely and a increased desertified landscope in the western part where was mostly covered by vegetation.But in the whole twonship,the woodland has expanded by 13.13 km2,and the desertified area has reduced by 7.18 km2.The results show that planting trees and shrubs is the effective way for combating desertification.

Key words: Land desertification, Quantitative remote sensing, Change detection

中图分类号: