Please wait a minute...
img

Wechat

Adv search
JOURNAL OF DESERT RESEARCH  2013, Vol. 33 Issue (3): 668-672    DOI: 10.7522/j.issn.1000-694X.2013.00096
Desert and Desertification     
Wind Tunnel Simulation Test on the Influence Factorsof Wind Erosion in Grassland Areas
LIU Yan-ping1, LIU Tie-jun1, MENG Zhong-ju2
1.Institute of Water Resources for Pastoral Area, Hohhot 010020, China;
2.Inner Mongolia Agricultural University, Hohhot 010019, China
Download:  PDF (3297KB) 
Export:  BibTeX | EndNote (RIS)      
Abstract  

Based on previous studies, selecting desert grasslands in the Ulanqab League of the Inner Mongolia as studied area, we carried out a quantitative analysis on influence of vegetation coverage on wind erosion by simulation test with a field mobile wind tunnel, which aimed at discussing the change of aerodynamic roughness and flow structure features under different vegetation coverage, and the quantitative relationship between vegetation coverage and sediment yield. Results show that aerodynamic roughness increases linearly approximately with the increase of vegetation coverage, and linear functional relationship is Z0=ax3+bx2+cx+d. With the increasing of the height above the ground, sediment yield decreases. With the increase of vegetation coverage, sediment yield at each layer also reduces. Under different wind speeds, the relation between sediment yield of wind erosion and vegetation coverage is related by a power function. The conclusion will provide a theory basis for soil and water loss mechanism research.

Key words:  grasslands      wind erosion      vegetation      wind tunnel simulation test     
Received:  22 September 2012      Published:  01 December 2012
ZTFLH:  X169  

Cite this article: 

LIU Yan-ping1, LIU Tie-jun1, MENG Zhong-ju2. Wind Tunnel Simulation Test on the Influence Factorsof Wind Erosion in Grassland Areas. JOURNAL OF DESERT RESEARCH, 2013, 33(3): 668-672.

URL: 

http://www.desert.ac.cn/EN/10.7522/j.issn.1000-694X.2013.00096     OR     http://www.desert.ac.cn/EN/Y2013/V33/I3/668

[1]章力建.关于加强我国草原资源保护的思考[J].中国草地学报,2009,31(6):1-7.

[2]刘艳萍,刘铁文,邢恩德.内蒙古乌兰察布荒漠草原土壤风力侵蚀机理研究[J].安徽农业科学,2010,38(12):6362-6364.

[3]董治宝,高尚玉,董光荣.土壤风蚀预报研究述评[J].中国沙漠,1999, 19(4):312-317.

[4]董治宝,陈渭南,董光荣,等.植被对风沙土风蚀作用的影响[J].环境科学学报,1996,16(4):442-446.

[5]黄富祥,牛海山,王明星,等.毛乌素沙地植被覆盖率与风蚀输沙率定量关系[J].地理学报,2001,56(6):700-710.

[6]张春来,邹学勇,董光荣,等.植被对土壤风蚀影响的风洞实验研究[J].水土保持学报,2003,17(3):31-33.

[7]刘艳萍,荣浩,邢恩德.不同措施对退化草地土壤和植被的影响[J].水土保持研究,2007,14(6):345-347.

[8]赵永来.利用移动式风洞测试评估植被盖度对土壤风蚀的影响[D].呼和浩特:内蒙古农业大学,2006.

[9]张雅静,申向东.植被覆盖地表空气动力学粗糙度与零平面位移高度的模拟分析[J].中国沙漠,2008,28(1):21-26.

[10]段学友,童淑敏,陈智.植被保护对土壤抗风蚀性能的影响[J].农村牧区机械化,2005,(1):13-15.

[11]刘汉涛.阴山北麓保护性耕作地表抗风蚀效果的试验研究[D].呼和浩特:内蒙古农业大学,2006.

[12]马玉明,姚洪林,王林和,等.风沙运动学[M].呼和浩特:远方出版社,2004.

[13]朱朝云,丁国栋,扬明远.风沙物理学[M].北京:中国林业出版社,1992.

[14]陈智.阴山北麓农牧交错区地表土壤抗风蚀能力测试研究[D].呼和浩特:内蒙古农业大学,2006.

[15]Buckley R.The effect of sparse vegetation on the transport of dune sand by wind[J].Nature,1987,325:426-428.

No Suggested Reading articles found!