Advances in Earth Science ›› 2002, Vol. 17 ›› Issue (2): 262-267. doi: 10.11867/j.issn.1001-8166.2002.02.0262

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RESEARCH ON THE EFFECTS OF WIND-SAND CURRENT ON THE PLANT GROWTH

YU Yun-jiang 1,2,  SHI Pei-jun 1, HE Li-ping 3, LIU Jia-qiong 2   

  1. 1.Institute of Resource Science, Key laboratory of Environmental Change and Natural Disaster, Ministry of Education of China, Beijing Normal University, Beijing 100875, China;2.Desert Experimental Research Station at Shapotou, Institute of Cold and Arid Regions Environment and Engineering,  CAS,Lanzhou 730000, China; 3.Forestry Department, Yikezhaomen Region, the Inner Mongolia Autonomous,Dong Sheng 017000,China
  • Received:2001-12-07 Revised:2001-12-28 Online:2002-12-20 Published:2002-04-01

YU Yun-jiang,SHI Pei-jun,HE Li-ping,LIU Jia-qiong. RESEARCH ON THE EFFECTS OF WIND-SAND CURRENT ON THE PLANT GROWTH[J]. Advances in Earth Science, 2002, 17(2): 262-267.

Blown Sand is frequent in China and even the globe, it affects the sustained utilization and development of botanical resource, thus it is essential to study on the effects of the blown sand on plant. In the past time, concerned research mainly comprised plant physiology, substance metabolizing and its adaptability under integrated factor of the desert instead of single wind-sand current factor, thus the author study on the effects of the blown sand on the growth characteristics of some plants in different windy condition by the field wind tunnel. The results showed: Wind and wind-sand current made net photosynthetic ratio(Pn), stomata conductance(Cs),  leaf temperature (Tl),leaf water potential (Lwp) decrease, made transpiration ratio(Tr) rise. The larger the windy velocity was or the shorter the interval of  blown sand was, the larger the changes of the above indexes was, and the effects of wind-sand current on above indexes were more fiercely than pure wind;  wind-sand stress made the plants experimented proline acid cumulate; because of decreasing water use efficiency (Wue), wind-sand current aggravated desiccation on plants; because of diversity and complexity of plant and blown sand movement, there were many further problems to study about effect of blown sand on plant growth.

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