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JOURNAL OF DESERT RESEARCH  2008, Vol. 28 Issue (3): 417-422    DOI:
生物土壤与生态     
Simulation Method of Vegetation Coverage in Arid Sandy Grassland: I. Models
LI Zhen-shan, WANG Yi, HE Li-min
Department of Environmental Engineering, Peking University, Beijing 100871, China; The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing 100871, China
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Abstract  Water replenishment, vegetation growth and wind-sand movement are the main factors that contribute to the change of vegetation coverage on sandy grassland in arid and semi-arid region. The conceptual and mathematical models of vegetation coverage are set up based on the researches on these three factors. The main models are grid water flow model, runoff model, ground water supply model, potential land productivity model. The model, combined with GIS technology, can show the spatial distribution characters of soil water supply, sand area and vegetation coverage change on sandy grassland in arid region.
Key words:  sandy grassland      vegetation coverage      water replenishment      wind-sand movement      simulation     
Received:  26 March 2007      Published:  20 May 2008
ZTFLH:  X144  
Articles by authors
LI Zhen-shan
WANG Yi
HE Li-min

Cite this article: 

LI Zhen-shan;WANG Yi;HE Li-min. Simulation Method of Vegetation Coverage in Arid Sandy Grassland: I. Models. JOURNAL OF DESERT RESEARCH, 2008, 28(3): 417-422.

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http://www.desert.ac.cn/EN/     OR     http://www.desert.ac.cn/EN/Y2008/V28/I3/417

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