| 生物土壤与生态 |
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| Review on Mechanism of Fine Soil Particles Increase in Enclosed Grassland |
| YAN Yu-chun, WANG Xu, YANG Gui-xia, XIN Xiao-ping |
| Ministry of Agriculture Key Lab of Resources Remote Sensing and Digital Agriculture & Hulunber Grassland Ecosystem Observation and Research Station, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China |
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Abstract Soil restoration is a difficult and key point for ecosystem restoration of the degenerated grassland. Increase of fine soil particles is very important to restoration of the degenerated soil system since it not only improve soil texture but also bring soil nutrients. By summarizing research cases on the fine soil particles increase in enclosed degenerated grassland, the authors in this paper analyze the mechanism of fine soil particles increase from aspects of return of plant organism, increase of vegetation cover and its role on preventing against wind erosion and on sequestration of dust fall. Finally, it is summarized that the research progress of dust fall's role on ecosystem; and prospect is looked forward to that future research in the fields of the contribution of dust fall on increase of fine soil particles in enclosed grassland and role of vegetation cover on sequestration of dust fall.
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Received: 11 December 2010
Published: 20 September 2011
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2011, Vol. 31 
