In this study, four types of sand-resistance nets with a height of 120cm were designed according to structure of the windbreaks characterized by an uniform porosity (a), 60cm-wide nets with a upper sparse and lower dense porosity (b), 10/20cm-wide nets with a interactive porosity (c), and 40cm-wide nets (d). The above mentioned nets was placed over some inter-dune corridor of central Taklimakan Desert. The results showed that: (1) These erosion and accumulation shapes of the deposited sand section presented in unimodal form, but their width and height were various; moreover, the height of all the three types of sand-blocking net with the non-uniform porosity was bigger than that of the sand-blocking net with the uniform porosity, and the order was c> b> d> a. (2) The mass of deposited sand was c> a> b> d, and mainly focused on the leeward. However, b and c is more than that of a and d for the mass of deposited sand on the windward side. (3) The deposited sand mass of different types of windbreaks and their spatial distribution discrepancy closely related with the structures of the sand blocking net and special wind field.
Ma Xuexi
,
Li Shengyu
,
He Zhihui
,
Wang Haifeng
,
Feng Xiao
,
Wu Xincheng
. Comparison of the Sand-blocking Effects of HDPE Windbreaks[J]. Journal of Desert Research, 2016
, 36(4)
: 925
-931
.
DOI: 10.7522/j.issn.1000-694X.2015.00120
[1] 马瑞,刘虎俊,马彦军,等.沙源供给条件对机械沙障固沙作用的影响[J].水土保持学报,2013,27(5):104-108.
[2] 张克存,屈建军,姚正毅,等.青藏铁路格拉段风沙危害及其防治[J].干旱区地理,2014,37(1):74-80.
[3] 屈建军,凌裕泉,俎瑞平,等.半隐蔽格状沙障的综合防护效益观测研究[J].中国沙漠,2005,25(3):329-335.
[4] 孙涛,刘虎俊,朱国庆,等.3种机械沙障防风固沙功能的时效性[J].水土保持学报,2012,26(4):12-16,22.
[5] 张克存,屈建军,俎瑞平,等.不同结构的尼龙网和塑料网防沙效应研究[J].中国沙漠,2005,25(4):483-487.
[6] 蒙仲举,任晓萌,高永.低立式纤维沙袋沙障防风固沙效应研究[J].水土保持研究,2014,21(2):294-296,301.
[7] Qu J J,Han Q J,Dong G R,et al.A study of the characteristics of aeolian sand activity and the effects of a comprehensive protective system in a coastal dune area in southern China[J].Engineering,2013,77:28-39.
[8] 马学喜,李生宇,王海峰,等.流动沙漠地形起伏区尼龙网方格沙障破损程度的空间分异[J].自然灾害学报,2015,24(2):81-88.
[9] 袁立敏,高永,黄海广,等.生物模块沙障对流动沙丘土壤微生物分布的影响[J].中国沙漠,2015,35(1):189-194.
[10] 屈建军,井哲帆,张克存,等.HDPE蜂巢式固沙障研制与防沙效应实验研究[J].中国沙漠,2008,28(4):599-604.
[11] 何志辉,李生宇,王海峰,等.塔克拉玛干沙漠4种结构尼龙阻沙网的防风阻沙效益对比[J].干旱区研究,2014,31(2):369-374.
[12] 屈建军,喻文波,秦晓波.HDPE功能性固沙障防风效应试验[J].中国沙漠,2014,34(5):1185-1193.
[13] 康向光,李生宇,马学喜,等.两条尼龙阻沙网不同组合间距的积沙量对比分析[J].干旱区研究,2015,32(2):347-354.
[14] 姚正毅,陈广庭,韩致文,机械防沙体系防沙功能的衰退过程[J].中国沙漠,2006,26(2):226-231.
[15] 王训明,陈广庭,韩致文,等.塔里木沙漠公路沿线机械防沙体系效益分析[J].中国沙漠,1999,19(2):120-127.
[16] 凌裕泉,金炯,邹本功,等.栅栏在防止前沿积沙中的作用:以沙坡头地区为例[J].中国沙漠,1984,3(4):16-25.
[17] 张克存,俎瑞平,方海燕.不同孔隙度尼龙网对风沙流减弱作用的风洞模拟[J].水土保持学报,2004,18(4):4-11.
[18] Cornelis W M,Gabriels D.Optimal windbreak design for wind-erosion control[J].Journal of Arid Environments,2005(612):315-332.
[19] 罗万银,董治宝,钱广强.栅栏最佳疏透度的空气动力学评价[J].中国沙漠,2009,29(4):583-588.
[20] Yeh C P,Tsai C H,Yang R J.An investigation into the sheltering performance of porous windbreaks under various wind directions[J].Journal of Wind Engineering and Industrial Aerodynamics,2010,98(10/11):520-532.
[21] Rosenberg N J.Microclimate:The Biological Environment[M].New York,USA:Wiley,1974.
[22] Huang L M,Chan H,Lee J T.A numerical study on flow around nonuniform porous fences[J].Journal of Applied Mathematics,2012,100:1-12.
[23] Hagen L J.Windbreak design for optimum wind erosion control[C]//Proceedings of the Symposium:Shelterbelts on the Great Plains.Denver,USA,1976:20-22.