| 国家重点基础研究发展规划 |
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| Coupling Dynamic Model of Vegetation and Aeolian Erosion and Its Application |
| MA Yan-ping, HUANG Ning |
| Key Laboratory of the Ministry of Education for Mechanics on Disaster and Environment in Western China, Lanzhou University, Lanzhou 730000, China |
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Abstract The coupling dynamics between vegetation and aeolian erosion is applied to study the relationship between vegetation growth and aeolian erosion development. Taken into consideration of the mutual coupling effect between vegetation coverage and aeolian erosion ratio, and the external force especially the influence of human activities, a dynamics model is set up in this study. Applied in the Beijing and Tianjin sand source control project areas, the model's theoretical solutions are calculated to simulate the development process of vegetation coverage and aeolian erosion ratio, and the parameters in model are gotten through a test calculation. The calculated values agreed well with the actual values. Finally, the model is applied to predict the development process of vegetation coverage and aeolian erosion ratio. The results show that afforestation and other measures to increase vegetation are effective to control Aeolian erosion development although the effect is relatively slow and a long-term effect need persistent efforts.
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Received: 01 December 2010
Published: 20 May 2011
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2011, Vol. 31 
