Login   |      Register
English    中文

Change trends for desertified lands in the Horqin Sandy Land at the beginning of the twenty-first century

Date: 2018-06-07      View counts: 253    

Label:

Language
English
Author
Zhiwen Han, Tao Wang, Changzhen Yan, Yubin Liu, Lichao Liu, Aimin Li, Heqiang Du
Journal
Original Article
Class
Desertification monitoring
Year
2010
Paper Keyword
Desertification, Horqin Sandy Land, GIS, Remote sensing, China
Abstract
The dynamics of desertification in the Horqin Sandy Land between 2000 and 2005 were analyzed using Landsat TM/ETM images and the data-processing function of geographical information software. The results showed that the extent of desertified land decreased at a rate of slightly more than 0.1 km2 year-1, from 22,423.1 km2 in 2000 to 22,422.4 km2 in 2005, indicating that desertification has been controlled in this area and that desert areas may be approaching a steady state. The dynamics of desertification differed among land types. Desertification decreased most obviously in areas of previous desert land. The area in which desertification was ameliorated was higher than the area that underwent further degradation, but non-desertified land (113.3 km2) deteriorated at a rate of 22.7 km2 year-1 during this period. This significant change requires careful attention by managers in the study area.

  Be logged in to post a comment!

Comment list ( 0 )

 

Information evaluation
ICP备案号:京ICP备14021735号-1    © 2008 - 2019 IKCEST All rights reserved