Abstract
The Hulunbir grassland experienced aeolian desertification expansion during 1975–2000, but local rehabilitation during 2000–2006. Northern China suffered severe aeolian desertification during the past 50 years. Hulunbir grassland, the best stockbreeding base in Northern China, was also affected by aeolian desertification. To evaluate the evolution and status of aeolian desertification, as well as its causes, satellite images (acquired in 1975, 1984, 2000, and 2006) and meteorological and socioeconomic data were interpreted and analyzed. The results show there was 2,345.7, 2,899.8, 4,053.9, and 3,859.6 km2 of aeolian desertified land in 1975, 1984, 2000, and 2006, respectively. The spatial pattern dynamic had three stages: stability during 1975–1984, fast expansion during 1984–2000, and spatial transfer during 2000–2006. The dynamic degree of aeolian desertification is negatively related to its severity. Comprehensive analysis shows that the human factor is the primary cause of aeolian desertification in Hulunbir grassland. Although aeolian desertified land got partly rehabilitated, constant increase of extremely severe aeolian desertified land implied that current measures were not effective enough on aeolian desertification control. Alleviation of grassland pressure may be an effective method.
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Guo, J., Wang, T., Xue, X. et al. Monitoring aeolian desertification process in Hulunbir grassland during 1975–2006, Northern China. Environ Monit Assess 166, 563–571 (2010). https://doi.org/10.1007/s10661-009-1023-5
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DOI: https://doi.org/10.1007/s10661-009-1023-5