可降解格状沙障对典型新月形沙丘风沙活动调控作用研究

doi:10.12118/j.issn.1000-6060.2025.537

Abstract

Abstract:

The Yabulai Mountain wind-sand gap, the largest convergence zone between the Badain Jaran Desert and the Tengger Desert, is subject to intense aeolian activity with complex sediment transport pathways, making it a critical area for the Three-North Shelterbelt Project. Through multi-profile gradient synchronous observations of wind and sand conducted at the foot, mid-slope, and crest of the windward slope of crescent-shaped dunes in this region, this study compares the structural characteristics of sand transport flows and the particle size differentiation patterns of wind-eroded sediments between biodegradable poly lactic acid (PLA) sand barriers and bare sand surfaces. The results indicate the following: (1) PLA sand barriers markedly suppress mid-to-high-level sediment transport at the slope base (sediment-free above 30 cm). Sediment reduction rates at the mid-slope and crest reach 53%, although near-surface sediment transport remains high. The wind-sand flow structure in PLA sand barrier zones at the slope base and mid-slope shows an inflection point at 0-10 cm, deviating from the typical exponential decay trend. (2) Sediment transport at the base and crest of PLA sand barrier zones occurs primarily within the 0-30 cm range, whereas bare sand crests concentrate transport within 0-20 cm (accounting for 85%). Bare sand at the base and mid-slope, along with PLA sand barriers at the mid-slope, exhibit sediment transport across the full 0-100 cm range. (3) The particle size distribution of wind-eroded material falls primarily between 100 and 500 μm, with saltation as the dominant transport mechanism (volume fraction >95%). At the bare sand slope crest, the proportion of suspended particles increased markedly to approximately 25% within the 2-10 cm range, whereas suspended transport at the same elevation on the bare sand mid-slope accounted for only about 4%. At the mid-slope, transport occurred primarily via saltation within the 50-100 cm range, accompanied by minor suspended transport (approximately 8%) and creep transport (approximately 5%). The cumulative distribution curves for PLA sand barriers exhibit consistent patterns, with particle motion dominated by saltation. (4) The average grain size of wind-eroded material shows a fluctuating decrease with increasing elevation, indicating good sorting. The distribution displays moderate kurtosis and near-symmetric skewness. (5) PLA sand barriers produce a central erosion-type single-funnel concave surface at the slope base and mid-slope, while the slope crest develops a northwest-trending accumulation ridge and a double-funnel concave structure. Considerable gradient differences in erosion and accumulation depths are observed across different slope positions. PLA sand barriers effectively suppress dune migration by altering near-surface wind-sand flow structures and sediment grain size composition, providing data support for ecological protection at wind-sand convergence zones.

Key words: PLA sand barrier, sediment transport grain size characteristics, concave surface, sand and wind flow structure, Yabulai Mountain sand and wind gap

MENG Zhongju, AN Hua, LIU Jing, LI Haonian, MENG Ruibing, YANG Yi, LI Xiaoyang, LIU Mingxin, ZHAI Bo. Regulation effect of degradable lattice sand barrier on wind-sand activity of typical crescent dunes[J].Arid Land Geography, 2026, 49(7): 1360-1374.

Figures/Tables 14

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References 45

[1]	朱震达, 吴正, 刘恕, 等. 中国沙漠概论[M]. 北京: 科学出版社, 1980: 3-7.
	[Zhu Zhenda, Wu Zheng, Liu Shu, et al. An introduction to the deserts in China[M]. Beijing: Science Press, 1980: 3-7.]
[2]	Anderson R S. Grit and grain[J]. Nature, 1991, 351(6329): 706, doi: 10.1038/351706a0.
[3]	Breed C S, Grow T. Morphology and distribution of dunes in sand seas observed by remote sensing[M]. Washington: Geological Survey Professional Paper, 1979: 253-274.
[4]	Lancaster N. Geomorphology of desert dunes[M]. New York: Routledge, 1995: 5-6.
[5]	杨岩岩, 刘连友, 屈志强, 等. 新月形沙丘研究进展[J]. 地理科学, 2014, 34(1): 76-83. doi: 10.13249/j.cnki.sgs.2014.01.76
	[Yang Yanyan, Liu Lianyou, Qu Zhiqiang, et al. A review of barchan dunes[J]. Geographical Science, 2014, 34(1): 76-83.]
[6]	Hunter R E, Richmond B M, Rho A T. Storm-controlled oblique dunes of the Oregon coast[J]. Geological Society of America Bulletin, 1983, 94(12): 1450-1465. doi: 10.1130/0016-7606(1983)94<1450:SODOTO>2.0.CO;2
[7]	陈京平, 余子莹, 杨帆, 等. 塔克拉玛干沙漠腹地沙尘暴对新月形沙丘表面粒度变化的影响[J]. 干旱区地理, 2023, 46(12): 1995-2004. doi: 10.12118/j.issn.1000-6060.2023.373
	[Chen Jingping, Yu Ziying, Yang Fan, et al. Effect of sandstorms on surface particle size variation of barchan dunes in the hinterland of Taklimakan Desert[J]. Arid Land Geography, 2023, 46(12): 1995-2004.] doi: 10.12118/j.issn.1000-6060.2023.373
[8]	邹桐, 杨转玲, 韦锦芝, 等. 柴达木盆地西南缘新月形沙丘移动特征及其影响因素[J]. 中国沙漠, 2023, 43(1): 212-221. doi: 10.7522/j.issn.1000-694X.2022.00134
	[Zou Tong, Yang Zhuanling, Wei Jinzhi, et al. Migration and influencing factors of barchan dunes in southwestern Qaidam Basin, China[J]. Journal of Desert Research, 2023, 43(1): 212-221.] doi: 10.7522/j.issn.1000-694X.2022.00134
[9]	刘旭阳, 宁文晓, 王振亭. 新月形沙丘脊线处的风沙流结构[J]. 中国沙漠, 2019, 39(6): 76-82. doi: 10.7522/j.issn.1000-694X.2018.00142
	[Liu Xuyang, Ning Wenxiao, Wang Zhenting. Aeolian sand structure at the brink of barchans[J]. Journal of Desert Research, 2019, 39(6): 76-82.] doi: 10.7522/j.issn.1000-694X.2018.00142
[10]	Yang Y Y, Qu Z Q, Shi P J, et al. Wind regime and sand transport in the corridor between the Badain Jaran and Tengger Deserts, central Alxa Plateau, China[J]. Aeolian Research, 2014, 12: 143-156. doi: 10.1016/j.aeolia.2013.12.006
[11]	张云枫, 马义娟, 苏志珠, 等. 巴丹吉林沙漠与腾格里沙漠连接带沙丘移动规律[J]. 中国沙漠, 2022, 42(5): 82-91. doi: 10.7522/j.issn.1000-694X.2022.00020
	[Zhang Yunfeng, Ma Yijuan, Su Zhizhu, et al. Dune movement in the joint zone of the Badain Jaran Desert and Tengger Desert[J]. Journal of Desert Research, 2022, 42(5): 82-91.] doi: 10.7522/j.issn.1000-694X.2022.00020
[12]	张诚. 阿拉善沙漠风积砂重矿物组成及物源分析[D]. 兰州: 兰州大学, 2020.
	[Zhang Cheng. Analysis of heavy mineral composition and provenance of aeolian sand in Alashan Desert[D]. Lanzhou: Lanzhou University, 2020.]
[13]	刘羽, 王秀红, 张雪芹, 等. 巴丹吉林-腾格里沙漠间沙丘活化带发展过程及其驱动力分析[J]. 干旱区研究, 2011, 28(6): 957-966.
	[Liu Yu, Wang Xiuhong, Zhang Xueqin, et al. Desertification process and its driving forces in the dune-activation region between the Badain Juran and Tengger Deserts[J]. Arid Zone Research, 2011, 28(6): 957-966.]
[14]	宁文晓, 刘旭阳, 王振亭. 巴丹吉林沙漠气温和降水特征及空间分层异质性[J]. 中国科学院大学学报, 2021, 38(1): 103-113. doi: 10.7523/j.issn.2095-6134.2021.01.013
	[Ning Wenxiao, Liu Xuyang, Wang Zhenting. Temperature and precipitation characteristics and spatial stratified heterogeneity in Badain Jaran Desert[J]. Journal of University of Chinese Academy of Sciences, 2021, 38(1): 103-113.] doi: 10.7523/j.issn.2095-6134.2021.01.013
[15]	刘婵, 赵文智, 刘冰, 等. 基于无人机和MODIS数据的巴丹吉林沙漠植被分布特征与动态变化研究[J]. 中国沙漠, 2019, 39(4): 92-102. doi: 10.7522/j.issn.1000-694X.2018.00096
	[Liu Chan, Zhao Wenzhi, Liu Bing, et al. Distribution characteristics and dynamic changes of vegetation in Badain Jaran Desert: Based on UAV and MODIS data[J]. Journal of Desert Research, 2019, 39(4): 92-102.] doi: 10.7522/j.issn.1000-694X.2018.00096
[16]	Wiggs G F S. Desert dune dynamics and the evaluation of shear velocity: An integrated approach[J]. Geological Society, London, Special Publications, 1993, 72(1): 37-46. doi: 10.1144/GSL.SP.1993.072.01.05
[17]	Wiggs G F S, Livingstone I, Thomas D S G, et al. Airflow and roughness characteristics over partially vegetated linear dunes in the southwest Kalahari Desert[J]. Earth Surface Processes and Landforms, 1996, 21(1): 19-34. doi: 10.1002/(ISSN)1096-9837
[18]	Sharratt B, Feng G L. Friction velocity and aerodynamic roughness of conventional and undercutter tillage within the Columbia Plateau, USA[J]. Soil and Tillage Research, 2009, 105(2): 236-241. doi: 10.1016/j.still.2009.08.004
[19]	王晨沣, 王玉杰, 袁立敏, 等. 不同形状沙袋沙障稳定性及防风效益[J]. 水土保持学报, 2015, 29(5): 7-12.
	[Wang Chenfeng, Wang Yujie, Yuan Limin, et al. Stability and wind-break effect of sandbag barriers of different shapes[J]. Journal of Soil and Water Conservation, 2015, 29(5): 7-12.]
[20]	吴正. 风沙地貌学[M]. 北京: 科学出版社, 1987: 83-92.
	[Wu Zheng. Aeolian geomorphology[M]. Beijing: Science Press, 1987: 83-92.]
[21]	Folk R L, Ward W C. A study in the significance of grain size parameters[J]. Journal of Sedimentary Research, 1957, 27(1): 3-26. doi: 10.1306/74D70646-2B21-11D7-8648000102C1865D
[22]	张文慧, 潘凯佳, 王思琦, 等. 塔克拉玛干沙漠不同地表输沙率和粒径特征[J]. 中国沙漠, 2025, 45(5): 55-67. doi: 10.7522/j.issn.1000-694X.2025.00022
	[Zhang Wenhui, Pan Kaijia, Wang Siqi, et al. Characteristics of sand transport rate and particle size ofvarious land surface in the Taklimakan Desert[J]. Journal of Desert Research, 2025, 45(5): 55-67.] doi: 10.7522/j.issn.1000-694X.2025.00022
[23]	张克存, 屈建军, 俎瑞平, 等. 戈壁、流沙地表风沙流特性研究[J]. 干旱区资源与环境, 2008, 22(10): 55-59.
	[Zhang Kecun, Qu Jianjun, Zu Ruiping, et al. Research on the characteristics of sand-driving wind over gobi/mobile sand surface[J]. Journal of Arid Land Resources and Environment, 2008, 22(10): 55-59.]
[24]	Xu B, Zhang J, Huang N, et al. Characteristics of turbulent aeolian sand movement over straw checkerboard barriers and formation mechanisms of their internal erosion form[J]. Journal of Geophysical Research: Atmospheres, 2018, 123(13): 6907-6919. doi: 10.1029/2017JD027786
[25]	朱朝云, 丁国栋, 杨明远. 风沙物理学[M]. 北京: 中国林业出版社, 1992: 30-105.
	[Zhu Chaoyun, Ding Guodong, Yang Mingyuan. Sand physics[M]. Beijing: Chinese Forestry Publishing House, 1992: 30-105.]
[26]	马世威, 马玉明, 姚云峰, 等. 沙漠学[M]. 呼和浩特: 内蒙古人民出版社, 1998: 50-97.
	[Ma Shiwei, Ma Yuming, Yao Yunfeng, et al. Desert science[M]. Hohhot: Inner Mongolia People’s Publishing House, 1998: 50-97.]
[27]	Dong Z, Gao S, Fryrear D W. Drag coefficients, roughness length and zero-plane displacement height as disturbed by artificial standing vegetation[J]. Journal of Arid Environments, 2001, 49(3): 485-505. doi: 10.1006/jare.2001.0807
[28]	朱泊年, 党晓宏, 蒙仲举, 等. 乌珠穆沁沙地生物基可降解聚乳酸(PLA)沙障防风固沙效益[J]. 水土保持研究, 2023, 30(2): 431-437.
	[Zhu Bonian, Dang Xiaohong, Meng Zhongju, et al. Effects of biodegradable poly lactic acid (PLA) sand barrier on wind prevention and sand fixation in Urumqi sandy land[J]. Research of Soil and Water Conservation, 2023, 30(2): 431-437.]
[29]	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): 336-340.
	[Zhang Kecun, Qu Jianjun, Dong Zhibao, et al. Effect of wind speed fluctuation on sand transport rate[J]. Journal of Desert Research, 2006, 26(3): 336-340.]
[30]	王自龙, 赵明, 冯向东, 等. 民勤绿洲外围不同下垫面条件下风沙流结构的观测研究[J]. 水土保持学报, 2009, 23(4): 72-75, 108.
	[Wang Zilong, Zhao Ming, Feng Xiangdong, et al. Study on structure of drifting sand flux under different underlying surface conditions of Minqin Oasis external[J]. Journal of Soil and Water Conservation, 2009, 23(4): 72-75, 108.]
[31]	肖雨婷, 张国明, 洪畅, 等. 巴丹吉林沙漠西缘不同地表沙尘水平通量[J]. 中国沙漠, 2023, 43(2): 104-113. doi: 10.7522/j.issn.1000-694X.2022.00110
	[Xiao Yuting, Zhang Guoming, Hong Chang, et al. Sand-dust horizontal flux of different surfaces in the western margin of Badain Jaran Desert[J]. Journal of Desert Research, 2023, 43(2): 104-113.] doi: 10.7522/j.issn.1000-694X.2022.00110
[32]	周娜, 张春来, 田金鹭, 等. 半隐蔽式草方格沙障凹曲面形成的流场解析及沉积表征[J]. 地理研究, 2014, 33(11): 2145-2156. doi: 10.11821/dlyj201411014
	[Zhou Na, Zhang Chunlai, Tian Jinlu, et al. Flow field controlling the concave surface of the semi-buried checkerboards and its characterization by grain sizes of sediments[J]. Geographical Research, 2014, 33(11): 2145-2156.]
[33]	党晓宏, 高永, 虞毅, 等. 新型生物可降解PLA沙障与传统草方格沙障防风效益[J]. 北京林业大学学报, 2015, 37(3): 118-125.
	[Dang Xiaohong, Gao Yong, Yu Yi, et al. Windproof efficiency with new biodegradable PLA sand barrier and traditional straw sand barrier[J]. Journal of Beijing Forestry University, 2015, 37(3): 118-125.]
[34]	党晓宏, 高永, 虞毅, 等. 可降解纤维沙障控制风蚀沙埋的作用规律[J]. 科技通报, 2015, 31(5): 41-46, 52.
	[Dang Xiaohong, Gao Yong, Yu Yi, et al. The affect law on the degradable fiber checkerboard control of wind erosion and sand bury[J]. Bulletin of Science and Technology, 2015, 31(5): 41-46, 52.]
[35]	江艳冰, 周倩, 王洪涛, 等. 洪积扇末端泥漠近地表风沙流结构特征[J]. 干旱区研究, 2025, 42(3): 568-576. doi: 10.13866/j.azr.2025.03.16
	[Jiang Yanbing, Zhou Qian, Wang Hongtao, et al. Structure of near-surface wind-blown sand over dryplaya at the end of an alluvial fan[J]. Arid Zone Research, 2025, 42(3): 568-576.] doi: 10.13866/j.azr.2025.03.16
[36]	宋洁, 春喜, 白雪梅, 等. 中国沙漠粒度分析研究综述[J]. 中国沙漠, 2016, 36(3): 597-603.
	[Song Jie, Chun Xi, Bai Xuemei, et al. Review of grain size analysis in China desert[J]. Journal of Desert Research, 2016, 36(3): 597-603.] doi: 10.7522/j.issn.1000-694X.2015.00142
[37]	姜吴彬, 张德国, 杨小平. 沙丘形态及表沙粒度特征对风况和地表植被变化的响应[J]. 中国沙漠, 2022, 42(4): 120-129. doi: 10.7522/j.issn.1000-694X.2022.00058
	[Jiang Wubin, Zhang Deguo, Yang Xiaoping. Response of dune morphology and grain-size characteristics to the change of wind regimes and vegetation cover[J]. Journal of Desert Research, 2022, 42(4): 120-129.] doi: 10.7522/j.issn.1000-694X.2022.00058
[38]	李超, 董治宝, 崔徐甲. 腾格里沙漠东南缘不同发育阶段横向沙丘粒度特征[J]. 中国沙漠, 2015, 35(1): 129-135. doi: 10.7522/j.issn.1000-694X.2014.00174
	[Li Chao, Dong Zhibao, Cui Xujia. Grain-size characteristics of transverse dune during different developmental stages in the southeastern edge of the Tengger Desert[J]. Journal of Desert Research, 2015, 35(1): 129-135.] doi: 10.7522/j.issn.1000-694X.2014.00174
[39]	Watson A. Grain-size variatios on a longitudinal-dune and a barchan dune[J]. Sedimentary Geology, 1986, 46(1): 49-66. doi: 10.1016/0037-0738(86)90005-9
[40]	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.
	[Qu Jianjun, Ling Yuquan, Zu Ruiping, et al. Study on comprehensive sand-protecting efficiency of semi-buried checkerboard sand-barriers[J]. Journal of Desert Research, 2005, 25(3): 329-335.]
[41]	王艺钊, 原伟杰, 丁国栋, 等. 聚乳酸(PLA)沙障凹曲面及沉积物粒度特征研究[J]. 干旱区地理, 2020, 43(3): 671-678.
	[Wang Yizhao, Yuan Weijie, Ding Guodong, et al. Concave surface features and grain-size characteristics in polylactic acid sand barrier[J]. Arid Land Geography, 2020, 43(3): 671-678.]
[42]	丁泊元, 丁国栋, 李炯书, 等. 沙袋沙障对沙地公路路域生态系统的影响[J]. 四川农业大学学报, 2013, 31(2): 145-150, 162.
	[Ding Boyuan, Ding Guodong, Li Jiongshu, et al. Effect of sandbag barrier on the ecosystem in highway in sandyland[J]. Journal of Sichuan Agricultural University, 2013, 31(2): 145-150, 162.]
[43]	陈新闯, 郭建英, 董智, 等. 乌兰布和沙漠流动沙丘下风向降尘粒度特征[J]. 中国沙漠, 2016, 36(2): 295-301. doi: 10.7522/j.issn.1000-694X.2015.00012
	[Chen Xinchuang, Guo Jianying, Dong Zhi, et al. Grain size characteristics of dustfall in the Ulan Buh Desert[J]. Journal of Desert Research, 2016, 36(2): 295-301.] doi: 10.7522/j.issn.1000-694X.2015.00012
[44]	郭琪, 闫敏, 左合君, 等. 额哈铁路内蒙古段大风条件下几种下垫面风沙流输沙的粒度特征[J]. 干旱区地理, 2025, 48(12): 2158-2168. doi: 10.12118/j.issn.1000-6060.2024.560
	[Guo Qi, Yan Min, Zuo Hejun, et al. Grain size characteristics of wind-blown sand transport on several underlying surfaces under strong wind conditions in Inner Mongolia section of Ejina-Hami railway[J]. Arid Land Geography, 2025, 48(12): 2158-2168.] doi: 10.12118/j.issn.1000-6060.2024.560
[45]	丁延龙, 高永, 汪季, 等. 生物基可降解聚乳酸(PLA)沙障对沙丘表层沉积物粒度特征的影响[J]. 中国沙漠, 2018, 38(2): 262-269. doi: 10.7522/j.issn.1000-694X.2016.00156
	[Ding Yanlong, Gao Yong, Wang Ji, et al. Effects of biodegradable poly lactic acid sand barriers on surface sediment grain-size characteristics at sand dunes[J]. Journal of Desert Research, 2018, 38(2): 262-269.] doi: 10.7522/j.issn.1000-694X.2016.00156

距地面200 cm风速/m·s^-1	下垫面	风速廓线回归方程	空气动力学粗糙度/cm	摩阻流速/m·s^-1
6.06	PLA沙障坡底	U_Z=2.27ln Z+0.91，R²=0.99	0.67	0.91
6.06	裸沙坡底	U_Z=1.87ln Z+1.77，R²=0.99	0.38	0.75
7.68	PLA沙障坡中	U_Z=3.05ln Z+0.85，R²=0.97	0.76	1.22
7.68	裸沙坡中	U_Z=1.90ln Z+3.24，R²=0.99	0.18	0.76
9.15	PLA沙障坡顶	U_Z=3.29ln Z+1.44，R²=0.98	0.65	1.31
9.15	裸沙坡顶	U_Z=1.92ln Z+4.54，R²=0.96	0.09	0.78

特征指示	PLA沙障坡底	裸沙坡底	PLA沙障坡中	裸沙坡中	PLA沙障坡顶	裸沙坡顶
Q_0~2/g·cm^-2·min^-1	0.0028	0.0053	0.0754	0.1810	0.1517	0.2015
Q_2~10/g·cm^-2·min^-1	0.0075	0.0082	0.2968	0.3419	0.4290	0.3404
特征值	2.68	1.55	3.94	1.89	2.83	1.69

Regulation effect of degradable lattice sand barrier on wind-sand activity of typical crescent dunes

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