Characteristics of wind speed pulsation above a bare farmland surface

doi:10.7522/j.issn.1000-694X.2020.00050

Journal of Desert Research ›› 2020, Vol. 40 ›› Issue (5): 57-64.DOI: 10.7522/j.issn.1000-694X.2020.00050

Previous Articles Next Articles

Characteristics of wind speed pulsation above a bare farmland surface

Hui Zhang(), Chunlai Zhang(), Xinyu Liu, Yujie Dai, Songbo Cen, Yaping Shen

State Key Laboratory of Earth Surface Processes and Resource Ecology / MOE Engineering Research Center of Desertification and Blown-sand Control，Faculty of Geographical Science，Beijing Normal University，Beijing 100875，China

Received:2020-04-20 Revised:2020-05-12 Online:2020-09-28 Published:2020-09-28
Contact: Chunlai Zhang

Abstract

Abstract:

Based on the continuous observation of wind speed above a bare farmland surface in the Bashang regions， characteristics of wind speed pulsation in the net wind and blown sand environment were analyzed. The results show that the pulsation intensity （u_v） is positively related to the average wind speed （ $u ˉ$ ）， and u_v increases with u faster in the net wind than in the blown sand environment， indicating that the blown sand has a inhibitory effect on the wind speed pulsation.The change of turbulence intensity （g） with the average wind speed shows a decreasing trend in power law. The distribution range of wind speed pulsation and the concentration of its probability distribution are related to the time interval （Δt） for averaging wind speed. The smaller the time interval， the smaller the distribution range of pulsating speed and the more concentrated the probability distribution. As Δt increases， $u v_m a x / u v ˉ$ shows a trend of rapid decrease when Δt < 5 min and tends to be stable when Δt > 5 min， implying that wind data averaged with Δt < 5 min can reflect the characteristics of wind pulsation well. Considering the feasibility in data access， it is reasonable to use the wind speed data of 1-5 min time interval in calculating the sediment transport rate which is influenced by wind pulsation.

Key words: farmland, wind speed pulsation, turbulence intensity, time interval for averaging wind speed

CLC Number:

X169

Hui Zhang, Chunlai Zhang, Xinyu Liu, Yujie Dai, Songbo Cen, Yaping Shen. Characteristics of wind speed pulsation above a bare farmland surface[J]. Journal of Desert Research, 2020, 40(5): 57-64.

Figures/Tables 8

References 30

1	吴正.风沙地貌与治沙工程学［M］.北京：科学出版社，2003：16-21.
2	Chepil W S，Siddoway F H.Strain-gauge anemometer for analyzing various characteristics of wind turbulence［J］.Journal of Meteorology，1959，16：411-418.
3	李振山，倪晋仁.风沙流中风速脉动的实验测量［J］.应用基础与工程科学学报，2003，11（4）：352-360.
4	张克存，屈建军，董治宝，等.风沙流中风速脉动对输沙量的影响［J］.中国沙漠，2006，26（3）：36-340.
5	张克存，屈建军，俎瑞平，等.典型下垫面风沙流中风速脉动特征研究［J］.中国科学（D辑），2006（12）：1163-1169.
6	王雪芹，杨东亮，马洋，等.沙漠-绿洲过渡带典型下垫面风速脉动特征：以塔克拉玛干沙漠南缘策勒绿洲为例［J］.中国沙漠，2015，35（3）：542-548.
7	郑先念，杨兴华，何清，等.塔克拉干沙漠腹地沙尘暴天气下风速脉动特征［J］.水土保持研究，2020，27（1）：366-371.
8	安志山，张克存，谭立海，等.晴天和沙尘天气下沙漠绿洲过渡带近地表风速脉动特征［J］.中国沙漠，2017，37（3）：414-420.
9	胡永锋，王雪芹，郭洪旭，等.古尔班通古特沙漠半固定沙垄表面风的脉动特征［J］.中国沙漠，2011，31（2）：393-399.
10	王萍，郑晓静.野外近地表风沙流脉动特征分析［J］.中国沙漠，2013，33（6）：1622-1628.
11	杨林，韩广，杨济，等.大风天气老哈河下游迎风侧谷坡的风速脉动特征［J］.中国沙漠，2014，34（6）：1469-1474.
12	郑先念，杨兴华，何清，等.不同天气条件下近地层风速脉动特征［J］.干旱区研究，2019，36（2）：387-394.
13	李振山，倪晋仁.挟沙气流输沙率研究［J］.泥沙研究，2001（1）：1-10.
14	包慧娟，李振山.风沙流中风速纵向脉动的实验研究［J］.中国沙漠，2004，24（2）：132-135.
15	张正偲，董治宝，赵爱国.输沙势计算中的“时距”问题［J］.干旱区地理，2010，33（2）：177-182.
16	Zhang Z，Dong Z，Zhao A.The effect of the time interval used to calculate mean wind velocity on the calculated drift potential，relative drift potential，and resultant drift direction for sands from three deserts in northern China［J］.Theoretical And Applied Climatology，2016， 123：151-160.
17	Mayaud J R，Bailey R M，Wiggs G F S，et al.Modelling aeolian sand transport using a dynamic mass balancing approach［J］.Geomorphology，2017，280：108-121.
18	Wang Z，Zhang C，Cen S.Unsteady aeolian saltation［J］.The European Physical Journal E，2018，41（10）：121.
19	李智广.中国水土流失现状与动态变化［J］.中国水利，2009（7）：8-11.
20	Boxel J H，Sterk G，Arens S M.Sonic anemometers in aeolian sediment transport research［J］.Geomorphology，2004，59（1/4）：131-147.
21	尚河英，尹忠东，张鹏，等.戈壁地表野外风速脉动特征［J］.南京林业大学学报（自然科学版），2017，41（1）：123-128.
22	童祎巍，孙洪鑫.矮寨大桥桥址区脉动风特性的实测分析［J］.湖南工程学院学报（自然科学版），2015，25（4）：90-94.
23	Barchyn T E， Martin R L，Kok J F，et al.Fundamental mismatches between measurements and models in aeolian sediment transport prediction：the role of small-scale variability［J］.Aeolian Research，2014，15：245-251.
24	Dupont S，Bergametti G，Marticorena B，et al.Modeling saltation intermittency［J］.Journal of Geophysical Research：Atmospheres，2013，118（13）：7109-7128.
25	王萍，郑晓静.非平稳风沙运动研究进展［J］.地球科学进展，2014，29（7）：786-794.
26	Stout J E.Effect of averaging time on the apparent threshold for aeolian transport［J］.Journal of Arid Environments，1998，39（3）：395-401.
27	邹学勇，张梦翠，张春来，等.输沙率对土壤颗粒特性和气流湍流脉动的响应［J］.地球科学进展，2019，34（8）：787-800.
28	Radok U.Snow drift［J］.Journal of Glaciology，1977，19：123-139.
29	Dong Z，Liu X，Wang H，et al.Aeolian sand transport：a wind tunnel model［J］.Sedimentary Geology，2003，161（1/2）：71-83.
30	Martin R L，Barchyn T E，Hugenholtz C H，et al.Timescale dependence of aeolian sand flux observations under atmospheric turbulence［J］.Journal of Geophysical Research：Atmospheres，2013，118：9078-9092.

时距	参数	5月6日	5月8日	5月9日	5月12日	5月13日	5月15日
1 min	最大值/（m·s^-1）	10.8	6.5	6.2	10.8	6.4	9.5
	最小值/（m·s^-1）	-5.2	-4.6	-5.5	-8.1	-8.4	-10.0
	±3 m·s^-1比例/%	99.4	99.6	99.1	93.6	95.9	93.8
2 min	最大值/（m·s^-1）	12.3	6.7	7.2	11.4	6.2	10.2
	最小值/（m·s^-1）	-6.1	-5.4	-5.3	-8.9	-8.0	-9.9
	±3 m·s^-1比例/%	98.7	99.9	98.7	92.1	94.8	92.4
5 min	最大值/（m·s^-1）	13.0	7.0	7.1	9.8	6.4	10.7
	最小值/（m·s^-1）	-5.1	-5.5	-5.8	-7.8	-8.1	-8.5
	±3 m·s^-1比例/%	97.5	98.5	97.3	90.6	93.0	90.4
10 min	最大值/（m·s^-1）	13.5	6.9	7.5	10.7	6.8	11.3
	最小值/（m·s^-1）	-5.5	-6.2	-5.9	-7.5	-8.6	-8.3
	±3 m·s^-1比例/%	96.5	97.7	96.5	89.5	91.7	89.2
20 min	最大值/（m·s^-1）	12.9	6.9	7.5	10.6	6.7	11.4
	最小值/（m·s^-1）	-5.4	-5.8	-6.2	-7.6	-8.7	-8.6
	±3 m·s^-1比例/%	96.0	97.4	96.3	89.0	91.1	88.1
30 min	最大值/（m·s^-1）	13.1	7.1	7.8	10.8	7.1	10.6
	最小值/（m·s^-1）	-5.4	-5.8	-6.2	-7.9	-8.6	-8.5
	±3 m·s^-1比例/%	96.0	97.1	95.7	88.5	90.0	87.5

时距	参数	5月6日	5月8日	5月9日	5月12日	5月13日	5月15日
1 min	最大值/（m·s^-1）	10.8	6.5	6.2	10.8	6.4	9.5
	最小值/（m·s^-1）	-5.2	-4.6	-5.5	-8.1	-8.4	-10.0
	±3 m·s^-1比例/%	99.4	99.6	99.1	93.6	95.9	93.8
2 min	最大值/（m·s^-1）	12.3	6.7	7.2	11.4	6.2	10.2
	最小值/（m·s^-1）	-6.1	-5.4	-5.3	-8.9	-8.0	-9.9
	±3 m·s^-1比例/%	98.7	99.9	98.7	92.1	94.8	92.4
5 min	最大值/（m·s^-1）	13.0	7.0	7.1	9.8	6.4	10.7
	最小值/（m·s^-1）	-5.1	-5.5	-5.8	-7.8	-8.1	-8.5
	±3 m·s^-1比例/%	97.5	98.5	97.3	90.6	93.0	90.4
10 min	最大值/（m·s^-1）	13.5	6.9	7.5	10.7	6.8	11.3
	最小值/（m·s^-1）	-5.5	-6.2	-5.9	-7.5	-8.6	-8.3
	±3 m·s^-1比例/%	96.5	97.7	96.5	89.5	91.7	89.2
20 min	最大值/（m·s^-1）	12.9	6.9	7.5	10.6	6.7	11.4
	最小值/（m·s^-1）	-5.4	-5.8	-6.2	-7.6	-8.7	-8.6
	±3 m·s^-1比例/%	96.0	97.4	96.3	89.0	91.1	88.1
30 min	最大值/（m·s^-1）	13.1	7.1	7.8	10.8	7.1	10.6
	最小值/（m·s^-1）	-5.4	-5.8	-6.2	-7.9	-8.6	-8.5
	±3 m·s^-1比例/%	96.0	97.1	95.7	88.5	90.0	87.5

[1]	Mengzhu Liu, Yanfang Wang, Hongwei Pei. The changes of land use and carbon storage in the northern farming-pastoral ecotone under the background of returning farmland to forest （grass） [J]. Journal of Desert Research, 2021, 41(1): 174-182.
[2]	Cen Songbo, Zhang Chunlai, Dai Yujie, Zhang Hui, Liu Xinyu, Li Qing, Huang Yuhu. Characteristics of PM₁₀ emission from farmland during a wind erosion event [J]. Journal of Desert Research, 2020, 40(3): 145-150.
[3]	Zheng Xinqian, Yang Fan, Li Chaofan, Pan Honglin, Ji Chunrong, Ali Mamtimin, Huo Wen, Yang Xinghua, Zhou Chenglong. The Turbulence Intensity of Surface Layer and Land Surface Processes over Guaizi Lake Shifting Sandy Land on the Northern Margin of Badain Jaran Desert [J]. Journal of Desert Research, 2019, 39(4): 103-112.
[4]	Liang Hairong, Li Jiatao, Li Yanli, Zhao Yingming, Feng Wei, Cheng Yiben, Yu Sijia, Yang Wenbin. Deep Leakage Characteristics and Water Balance of Irrigated Farmland in Ulan Buh Desert [J]. Journal of Desert Research, 2019, 39(4): 187-194.
[5]	Su Yongzhong, Yang Rong, Liu Tingna. Effects of Long-term Different Fertilization on Soil Fertility and Soil Organic Carbon Accumulation in Psamments of Oasis Farmland [J]. Journal of Desert Research, 2019, 39(3): 1-6.
[6]	Kang Xia. Dinamics of Carbon Absorption and Emission of Crops in Gansu, China [J]. Journal of Desert Research, 2018, 38(6): 1237-1242.
[7]	Wang Rende, Chang Chunping, Guo Zhongling, Li Qing. A Wind Erosion Empirical Model of Farmland Applied in Bashang Area of Hebei, China [J]. JOURNAL OF DESERT RESEARCH, 2017, 37(6): 1071-1078.
[8]	Zhang Yinghua, Kang Caizhou, Liu Shizeng, Tang Jinnian, Wei Linyuan, Li Jinhui. Windbreak Effect of Picea mongolica Farmland Shelterbelt with Different Configuration [J]. JOURNAL OF DESERT RESEARCH, 2017, 37(5): 859-866.
[9]	Qiao Hongqiang. Influence of Villager Correlation on Villager Participation in Water Conservancy Facilities Construction [J]. JOURNAL OF DESERT RESEARCH, 2016, 36(2): 549-555.
[10]	Wang Shu, Zhang Yanfang, Wei Hejie, Zhang Hongyun. The NPP Change and the Vegetation Carbon Fixation/Oxygen Release Values in Shaanxi-Gansu-Ningxia Region of China [J]. JOURNAL OF DESERT RESEARCH, 2015, 35(5): 1421-1428.
[11]	Li Xuanshu, Chang Chunping, Wang Rende. Influence of Land Use Ways on the Farmland Soil Wind Erosion in Bashang Area, Hebei, China [J]. JOURNAL OF DESERT RESEARCH, 2014, 34(1): 23-28.
[12]	Huang Lingling, Wang Ping, Liu Shuying, Ma Gang, Zhang Zhigong, Wang Kun. Characteristics of Emergy Spatial Heterogeneity of Farmland Ecosystem in the Minqin Oasis [J]. JOURNAL OF DESERT RESEARCH, 2014, 34(1): 291-298.
[13]	SHI Fu-xi1, SONG Chang-chun1, ZHAO Cheng-zhang2, ZHANG Jing2, SHI Li-li2. Dynamic of Service Value of Farmland Meta-ecosystem of Mountain, Oasis and Desert and Multiple Regression Analysis of the Influence Factors in the Hexi Corridor, Gansu, China [J]. JOURNAL OF DESERT RESEARCH, 2013, 33(5): 1598-1604.
[14]	WEI Xing-hu1, LEI Li2, ZOU Xue-yong3, YAN Ping3, ZHANG Chun-lai3. Research on the Vegetation Changing of Artifical Forests Converted from Farmland in Otindag Sandy Land Sub-regions of Beijing-Tianjin Sandstorm-control Area [J]. JOURNAL OF DESERT RESEARCH, 2013, 33(2): 604-612.
[15]	LI Hong-li;DONG Zhi;ZUO He-jun;HAO Yu-guang. Farmland Wind-sand Disaster and Its Spatio-temporal Variation in Ulan Buh Desert [J]. JOURNAL OF DESERT RESEARCH, 2011, 31(2): 346-351.

Characteristics of wind speed pulsation above a bare farmland surface

RichHTML

PDF

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 8

References 30

Related Articles 15

Recommended Articles

Metrics

Comments