毛乌素沙地光伏电站项目区风速流场及风蚀防治措施

doi:10.7522/j.issn.1000-694X.2015.00200

摘要/Abstract

摘要： 针对毛乌素沙地光伏电站项目,观测项目区的风速、风速廓线及风速流场特征,探讨有效的风蚀防治措施及其合理布局。结果表明:(1)太阳能板的存在使项目区风速流场的空间分布发生了明显变化,显著增加了板间近地面出风口处的风速,降低了板间远地面进风口处的风速,太阳能板间呈现出明显的掏蚀区和堆积区。(2)与项目区外围相比,太阳能板使20 cm及200 cm高度的风速分别降低了44.06%及63.68%。项目区外围及太阳能板正中间风速随高度的增加均呈上升趋势,而且太阳能板间60 cm高度以下风速增加更明显,不利于地表沙土的固定。(3)项目区外围麦草方格沙障、砾石压盖及红泥覆盖均起到一定的固沙作用,其中,以砾石压盖措施的固沙效果最优。(4)太阳能板间,除麦草方格沙障外,其余各措施均能起到固沙作用,其中以掏蚀区+砾石/堆积区+红泥覆盖的组合措施的固沙效果最优。

关键词: 光伏电站, 风速廓线, 风速流场, 风蚀防治, 工程措施

Abstract: Relying on the photovoltaic power plant in Mu Us Sand Land, the effective engineering measures and its reasonable layout were discussed through observing the wind speed, wind speed profile and wind velocity flow field characteristics in this project area. The results showed that:(1)Solar panels make the spatial distribution of wind speed flow field changed significantly, wind speed near the surface at the wind outlet of solar panels increased while the wind speed far away the ground at wind inlet of solar panels reduced, and undercutting area and stacking area between the solar panels occurred. (2) Comparing with the project area periphery, solar panels made the wind speed in the height of 20 cm and 200 cm decreased by 44.06% and 63.68%, respectively. Wind speed is positive to height in the project area periphery and middle of the solar panels, and the wind speed below 60 cm between the solar panels increased much more obviously, which is not conducive to sand stabilization. (3) In the project area periphery, straw checkerboard barriers, gravel capping and soil covering measures play an important role in sand-fixing, in which gravel capping measures is the optimum. (4) Between the solar panels, all measures besides straw checkerboard barriers fixed sand effectively, in which gravel in undercutting area +red mud in accumulating area is the best combination.

Key words: photovoltaic power plant, wind speed profile, wind speed flow field, wind erosion control, engineering measures

中图分类号:

P931.3

袁方, 张振师, 卜崇峰, 杨延哲, 苑森朋. 毛乌素沙地光伏电站项目区风速流场及风蚀防治措施[J]. 中国沙漠, 2016, 36(2): 287-294.

Yuan Fang, Zhang Zhenshi, Bu Chongfeng, Yang Yanzhe, Yuan Senpeng. Wind Speed Flow Field and Wind Erosion Control Measures at Photovoltaic Power Plant Project Area in Mu Us Sandy Land[J]. JOURNAL OF DESERT RESEARCH, 2016, 36(2): 287-294.

参考文献

[1] 范修其,郑春明.重点工程建设水土流失防护初探[J].浙江水利科技,2001(4):16-17.
[2] 孟宪华.风电场工程水土流失规律及其防治技术研究[D].北京:中国农业科学院,2010.
[3] 李夷荔,林文莲.论工程侵蚀特点及其防治对策[J].福建水土保持,2001,13(3):27-31,40.
[4] 王亚奇.陕北风沙区铁路工程风蚀规律研究——准朔铁路为例[D].北京:北京交通大学,2010.
[5] 贺康宁,王治国,赵永军.生产建设项目水土保持[M].北京:中国林业出版社,2009.
[6] 焦居仁.开发建设项目水土保持[M].北京:中国法制出版社,1998.
[7] 王治国,段喜明,李文银,等.开发建设项目水土流失预测的若干问题讨论[J].中国水土保持,2000(4):38-40.
[8] 黄福祥,牛海山,王明星,等.毛乌素沙地植被覆盖度与风蚀输沙率定量关系[J].地理学报,2001,56(6):700-710.
[9] 王仁德,邹学勇,赵婧妍.北京市农田风蚀的野外观测研究[J].中国沙漠,2011,31(2):400-406.
[10] 巩国丽,刘纪远,邵全琴.基于RWEQ的20世纪90年代以来内蒙古锡林郭勒盟土壤风蚀研究[J].地理科学进展,2014,33(6):825-834.
[11] Funk R,Skidmore E L,Hagen L J.Comparison of wind erosion measurements in Germany with simulated soil losses by WEPS[J].Environmental Modelling & Software,2004,19:177-183.
[12] Almerindo D F,Ros rio F M.A Wind Tunnel Study of Wind Erosion and Profile Reshaping of Transverse Sand Pile in Tandem[J].Geomorphology,2012,139/140:230-241.
[13] Mariano J M,Daniel E B.Wind erosion risk in agricultural soils under different tillage systems in semiarid Pampas of Argentina[J].Soil & Tillage Research,2010,106:311-316.
[14] 武俊瑛,高永.浑善达克沙地公路机械沙障防风固沙效益分析[J].干旱区资源与环境,2010,24(12):161-166.
[15] 程建军,蒋富强,杨印海,等.戈壁铁路沿线风沙灾害特征与挡风沙措施及功效研究[J].中国铁道科学,2010,31(5):15-20.
[16] 杜鹏飞,刘孝盈,宁堆虎.生产建设项目用地土壤风蚀量监测方法与预报模型分析[J].中国水土保持科学,2013,11(1):117-122.
[17] 杨健,高照良,李永红.国内外开展开发建设项目研究进展的初步分析[J].中外企业家,2010(14):6-9.
[18] 刘连友,刘玉璋,李小雁,等.砾石覆盖对土壤吹蚀的抑制效应[J].中国沙漠,1999,19(1):61-63.
[19] 凌裕泉.草方格沙障的防护效益[M].银川:宁夏人民出版社,1980.
[20] 戴海伦,金复鑫,张科利.国内外风蚀监测方法回顾与评述[J].地球科学进展,2011,26(4):401-408.
[21] 安志山,张克存,谭立海,等.不同高度阻沙栅栏蚀积过程及防沙效益研究[J].水土保持通报,2011,31(6):37-41.
[22] 曹波,孙保平,高永,等.高立式沙柳沙障防风效益研究[J].中国水土保持科学,2007,5(2):40-45.