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- Title
Sandy desertification change and its driving forces in western Jilin Province, North China.
- Authors
Li Fang; Zhang Bai; Su Wei; He Yanfen; Wang Zongming; Song Kaishan; Liu Dianwei; Liu Zhiming
- Abstract
This paper investigates the sandy desertification change between 1986 and 2000 in the western Jilin province, North China. Land use and land cover data were obtained from Landsat TM data by using a supervised classification approach. We summarized the total area of desertified land by each county, as well as the area for each of the four categories of desertified land. The changes of different types of land use and land cover between 1986 and 2000 were calculated and analyzed. Taking Tongyu and Qianan as examples, both human and natural driving forces of the sandy desertification were analyzed. Our analyses indicate that the material sources and windy, warm and dry climate are the immanent causes of potential land desertification, while the irrational human activities, such as deforestation, reclaiming and grazing in the grassland, are the external causes of potential land desertification. However, rational human activities, such as planting trees and restoring grassland can reverse the land desertification process. Furthermore, the countermeasures and suggestions for the sustainable development in ecotone between agriculture and animal husbandry in North China are put forward.
- Subjects
CHINA; DESERTIFICATION; LAND-water ecotones; ENVIRONMENTAL degradation; REMOTE sensing; ECOTONES; ANIMAL culture; DOMESTIC animals; DESERT reclamation
- Publication
Environmental Monitoring & Assessment, 2008, Vol 136, Issue 1-3, p379
- ISSN
0167-6369
- Publication type
Article
- DOI
10.1007/s10661-007-9693-3