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JOURNAL OF DESERT RESEARCH  2013, Vol. 33 Issue (6): 1731-1734    DOI: 10.7522/j.issn.1000-694X.2013.00258
Biology and Soil     
A Theoretical Analysis of the Effect of Wind-blown Sand Electrostatic Field on Vegetation Physiological Processes
LI Xing-cai1,2,3, ZHAO Ning1
1.School of Physics & Electrical Information Engineering, Ningxia University, Yinchuan 750021, China;
2.Ningxia Key Library of Information Sensing & Intelligent Desert, Ningxia University, Yinchuan 750021, China;
3.Key Laboratory of Mechanics on Western Disaster and Environment, Lanzhou University, Lanzhou 730000, China
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Abstract  

Wind-blown sand has an important effect on plant physiological processes, but there is no any theoretical model to explain its mechanism. Based on the rigid conduit model of the plant stem, this paper discusses the effect of wind-sand electrostatic field on the speed of plant sap flow. The numerical result shows that with the increasing of external electric field, the sap flow rate corresponding exponentially increases, accordingly the stronger external electric field, the faster the water transport; with the increasing of conduit radius, the water transport rate increases, and the effect of environment electric field on plant sap flow is more obvious. To some extent, these results can explain why the effect of wind-blown sand on plant is larger than that of the net wind, and it will provide some helps for the vegetation protection on arid areas.

Key words:  wind-blown sand      electric field      sap flow rate      plant physiological processes     
Received:  10 September 2012      Published:  28 September 2012
ZTFLH:  Q945.79  
Articles by authors
LI Xing-cai1
2
3
ZHAO Ning1

Cite this article: 

LI Xing-cai1,2,3, ZHAO Ning1. A Theoretical Analysis of the Effect of Wind-blown Sand Electrostatic Field on Vegetation Physiological Processes. JOURNAL OF DESERT RESEARCH, 2013, 33(6): 1731-1734.

URL: 

http://www.desert.ac.cn/EN/10.7522/j.issn.1000-694X.2013.00258     OR     http://www.desert.ac.cn/EN/Y2013/V33/I6/1731

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