乌珠穆沁沙地聚乳酸纤维沙袋沙障地表蚀积特征

doi:10.13304/j.nykjdb.2022.0950

中国农业科技导报 ›› 2024, Vol. 26 ›› Issue (8): 180-188.DOI: 10.13304/j.nykjdb.2022.0950

• 生物制造资源生态 • 上一篇

乌珠穆沁沙地聚乳酸纤维沙袋沙障地表蚀积特征

朱泊年¹(), 党晓宏¹^,²(), 蒙仲举¹, 刘阳³, 郭春晖⁴

^1.内蒙古农业大学沙漠治理学院，呼和浩特 010018
^2.内蒙古杭锦荒漠生态系统国家定位观测研究站，内蒙古鄂尔多斯，017400
^3.内蒙古自治区水利科学研究院，呼和浩特 010020
^4.包头市东河区农牧林草服务中心，内蒙古包头 014000

收稿日期:2022-11-03 接受日期:2023-02-21 出版日期:2024-08-15 发布日期:2024-08-12
通讯作者: 党晓宏
作者简介:朱泊年 E-mail：zbn1026316444@163.com；
基金资助:
内蒙古自治区科技计划项目(2020GG0077)

Characteristics of Surface Erosion and Deposition of Sandbag Sand Barriers in Urumqi Sandy Land

Bonian ZHU¹(), Xiaohong DANG¹^,²(), Zhongju MENG¹, Yang LIU³, Chunhui GUO⁴

^1.Institute of Desert Control Science and Engineering，Inner Mongolia Agricultural University，Hohhot 010018，China
^2.Inner Mongolia Hangjin Desert Ecological Position Research Station，Inner Mongolia Ordos 017400，China
^3.Inner Mongolia Autonomous Region Water Conservancy Research Institute，Hohhot 010020，China
^4.Donghe District Agriculture Animal Husbandry Service Center，Inner Mongolia Baotou 014000，China

Received:2022-11-03 Accepted:2023-02-21 Online:2024-08-15 Published:2024-08-12
Contact: Xiaohong DANG

摘要/Abstract

摘要：

沙障的蚀积特征对其发挥防护作用具有重要影响。为探究聚乳酸纤维（polylactic acid fiber，PLA）沙袋沙障对乌珠穆沁沙地沙化治理的效果，设置0.5 m×0.5 m、1.0 m×1.0 m、2.0 m×2.0 m和3.0 m×3.0 m共4种规格的聚乳酸纤维沙袋沙障，采用悬测法测量障格内部凹曲面形态，并分析不同规格沙障内部凹曲面的形态特征、蚀积效应。结果表明，沙障凹曲面中心风蚀深度随沙障规格的增大由5.17 cm增加到21.23 cm，而堆积强度随沙障规格的增大由3.86 g·cm^-3降至0.42 g·cm^-3，障格内由堆积变为风蚀；蚀积系数稳定在1/9~1/8，随沙障规格的增大蚀积系数逐渐减小；障格内风蚀最深点随主风向偏移，障格内与主风向一致的方位风蚀量更大，剖面曲线开口更大；坡顶处凹曲面拟合效果大于坡中和坡底。综上所述，在乌珠穆沁沙地内，风蚀多发生在西北-东南和西-东方向上，且坡顶处形成的凹曲面较稳定，该地区适合布设2.0 m×2.0 m规格PLA沙障，研究结果为PLA沙障在乌珠穆沁沙地防沙工程中的合理应用提供了科学参考。

关键词: 沙袋沙障, 凹曲面, 蚀积特征, 乌珠穆沁沙地

Abstract:

The erosion characteristics of sand barrier have important influence on its protective effect. In order to explore the effect of polylactic acid fiber （PLA） sandbag sand barriers on desertification control in Urumqi sandy land， four specifications of poly lactic acid fiber sandbag sand barriers were set with 0.5 m×0.5 m， 1.0 m×1.0 m， 2.0 m×2.0 m and 3.0 m×3.0 m. The concave surface shape inside the baffle was measured by suspension method. The morphological characteristics and erosion effect of concave surface in different specifications of sand barriers were analyzed. The results showed the wind erosion depth at the center of the concave surface of the sand barrier increaseed from 5.17 cm to 21.23 cm with the increase of the sand barrier specifications， and the stacking strength decreased from 3.86 g·cm^-3 to 0.42 g·cm^-3 with the increase of sand barrier size， which the accumulation turned to wind erosion in the barrier. The erosion coefficient was stable at 1/9~1/8， and decreased with the increase of sand barrier size. The deepest point of wind erosion in the barrier moved with the main wind direction. The wind erosion in the direction consistent with the main wind direction was greater， and the opening of the profile curve was larger. The concave surface fitting effect at the top of the slope was better than that at the middle and bottom of the slope. In summary， In Urumqi sandy land， wind erosion occurred mostly in northwest-southeast and west-east directions， the concave surface formed at the top of the slope was more stable， and the area should be suitable for laying 2.0 m×2.0 m PLA sand barriers. Above results could provide scientific reference for the rational application of PLA sand barriers in sand control project in Urumqi sandy land.

Key words: sandbag sand barrier, concave surface, characteristics of erosion and deposition, Urumqi sandy land

中图分类号:

S775

朱泊年, 党晓宏, 蒙仲举, 刘阳, 郭春晖. 乌珠穆沁沙地聚乳酸纤维沙袋沙障地表蚀积特征[J]. 中国农业科技导报, 2024, 26(8): 180-188.

Bonian ZHU, Xiaohong DANG, Zhongju MENG, Yang LIU, Chunhui GUO. Characteristics of Surface Erosion and Deposition of Sandbag Sand Barriers in Urumqi Sandy Land[J]. Journal of Agricultural Science and Technology, 2024, 26(8): 180-188.

图/表 6

参考文献 21

1	闵庆文,刘寿东,杨霞.内蒙古典型草原生态系统服务功能价值评估研究[J].草地学报,2004,12(3):165-169.
	MIN Q W, LIU S D, YANG X. Evaluation of the ecosystem services of the Inner Mongolia steppe [J]. Acta Agrestia Sin., 2004, 12(3):165-169.
2	白永飞,黄建辉,郑淑霞,等.草地和荒漠生态系统服务功能的形成与调控机制[J].植物生态学报,2014,38(2):93-102.
	BAI Y F, HUANG J H, ZHENG S X, et al.. Drivers and regulating mechanisms of grassland and desert ecosystem services [J]. Chin. J. Plant Ecol., 2014, 38(2):93-102.
3	张存厚,王明玖,乌兰巴特尔,等.内蒙古典型草原地上净初级生产力对气候变化响应的模拟[J].西北植物学报,2012,32(6):1229-1237.
	ZHANG C H, WANG M J, Wulanbater, et al.. Responses of ANPP to climate change in Inner Mongolia typical steppe—a simulation study [J]. Acta Bot. Bor-Occid. Sin., 2012, 32(6):1229-1237.
4	刘军会,高吉喜,马苏,等.内蒙古生态环境敏感性综合评价[J].中国环境科学,2015,35(2): 591-598.
	LIU J H, GAO J X, MA S, et al.. Comprehensive evaluation of eco-environmental sensitivity in Inner Mongolia, China [J]. Chin. Environ. Sci., 2015, 35(2):591-598.
5	袁立敏,黄海广,闫德仁,等.不同沙埋程度下带状沙障的防风固沙效果研究[J].农业工程学报,2019,35(16):172-179.
	YUAN L M, HUANG H G, YAN D R, et al.. Effect of wind-preventing and sand fixation of belt sand barrier under different degree of sand burial [J]. Trans. Chin. Soc. Agric. Eng., 2019, 35(16):172-179.
6	王艺钊,原伟杰,丁国栋,等.聚乳酸纤维(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 Y Z, YUAN W J, DING G D, et al.. Concave surface features and grain-size characteristicsin polylactic acid sand barrier [J]. Arid Land Geography, 2020, 43(3):671-678.
7	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.
	MENG Z J, REN X M, GAO Y. Effect of the low-fiber sandbag sand-barrier on wind-breaking and sand-fixation [J]. Res. Soil Water Conserv., 2014, 21(2):294-296.
8	党晓宏,虞毅,高永,等.沙袋沙障对沙丘土壤粒径的影响分析[J].水土保持研究,2014,21(3):16-19.
	DANG X H, YU Y, GAO Y, et al.. Analysis on impact of PLA barrier on soil particle sizes of sand dunes [J]. Res. Soil Water Conserv., 2014, 21(3):16-19.
9	常兆丰,仲生年,韩福桂,等.粘土沙障及麦草沙障合理间距的调查研究[J].中国沙漠,2000,20(4):111-113.
	CHANG Z F, ZHONG S N, HAN F G, et al.. Research of the suitable row spacing on clay barriers and straw barriers [J]. J. Desert Res., 2000, 20(4):111-113.
10	刘湘杰,党晓宏,汪季,等.生物基可降解聚乳酸纤维沙障的蚀积特征[J].水土保持通报,2019,39(5):113-119.
	LIU X J, DANG X H, WANG J, et al.. Characteristics of eosion and deposition of biodegradable poly lactic acid checkerboard barriers [J]. Bull. Soil Water Conserv., 2019, 39(5):113-119.
11	张克存,屈建军,俎瑞平,等.不同下垫面对风沙流特性影响的风洞模拟研究[J].干旱区地理,2004,27(3):352-355.
	ZHANG K C, QU J J, ZU R P, et al.. Wind tunnel simulation about the effects of the different underlying surfaces on the features of drifting sand current [J]. Arid Land Geography, 2004, 27(3):352-355.
12	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 J J, LING Y Q, ZU R P, et al.. Study on comprehensive sand-protecting efficiency of semi-buried checkerboard sand-barriers [J]. J. Desert Res., 2005, 25(3):329-335.
13	李谦. PLA沙障防风固沙效益的变化过程[D].呼和浩特:内蒙古农业大学,2012.
	LI Q. The change process wind-break and sand -fixing benefits on PLA barrier [D]. Hohhot: Inner Mongolia Agricultural University, 2012.
14	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.
	ZHOU N, ZHANG C L, TIAN J L, et al.. Flow field controlling the concave surface of the semi-buried checkerboards and its characterization by grain sizes of sediments [J]. Geography Res., 2014, 33(11):2145-2156.
15	谢文波.荒漠草原地表蚀积格局及其环境效应的研究[D]. 呼和浩特:内蒙古大学,2009.
	XIE W B. Studies on the pattern of earth surface wind erosion and aeolian and environmental effects in the desert steppe [D]. Hohhot: Inner Mongolia University, 2009.
16	苏日古嘎,通嘎拉,刘素军.西乌珠穆沁旗草原灌丛化群落对土壤粒径的响应研究[J].内蒙古师范大学学报(自然科学汉文版),2020,49(4):320-326.
	Suriguga, Tonggala, LIU S J. Research on the response of grassland thicketization to soil particle size in West Urumqi Banner [J]. J. Inner Mongolia Nor. Univ. (Nat. Sci.), 2020, 49(4):320-326.
17	周丹丹.生物可降解聚乳酸纤维(PLA)材料在防沙治沙中的应用研究[D].呼和浩特:内蒙古农业大学,2009.
	ZHOU D D. A study on the application of biodegradable poly lactic acid (PLA) material for combating desertification [D]. Hohhot: Inner Mongolia Agricultural University, 2009.
18	马学喜,李生宇,王海峰,等.固沙网沙障积沙凹曲面特征及其固沙效益分析[J].干旱区研究,2016,33(4):898-904.
	MA X X, LI S Y, WANG H F, et al.. Concave surface features in sand-fixing net barriers and evaluation of sand-fixing benefits [J]. Arid Zone Res., 2016, 33(4):898-904.
19	张登山,吴汪洋,田丽慧,等.青海湖沙地麦草方格沙障的蚀积效应与规格选取[J].地理科学,2014,34(5):627-634.
	ZHANG D S, WU W Y, TIAN L H, et al.. Effects of erosion and deposition and dimensions selection of straw-checkerboard barriers in the desert of Qinghai Lake [J]. Sci. Geography Sin., 2014, 34(5):627-634.
20	周丹丹,虞毅,胡生荣,等.沙袋沙障凹曲面特性研究[J].水土保持通报,2009,29(4):22-25.
	ZHOU D D, YU Y, HU S R, et al.. Concave surface characteristics of sandbag sand barrier [J]. Bull. Soil Water Conserv., 2009, 29(4):22-25.
21	袁立敏. PLA沙障对土壤物理性质影响及其防护效益研究[D].呼和浩特:内蒙古农业大学,2010.
	YUAN L M. Study on effects of soil physical properties and protection benefits by PLA sand barrier [D]. Hohhot: Inner Mongolia Agricultural University, 2010.

规格 Type	位置 Position	凹曲面深度 Concave surface depth/cm	蚀积量 Erosion volume/g	净堆积强度 Net stacking strength/（g·cm^-3）	蚀积系数 Erosion-deposition coefficient
0.5 m×0.5 m	坡顶Upper slope	5.47±0.45 δb	0.09±0.002 4 αb	3.67±0.10 αa	0.11±0.008 2 αa
	坡中Middle slope	5.17±0.59 γa	0.11±0.003 3 αβa	4.34±0.13 αb	0.10±0.012 5 αa
	坡底Bottom slope	5.87±1.48 δab	0.09±0.007 0 βb	3.58±0.31 αb	0.12±0.033 0 αa
1.0 m×1.0 m	坡顶Upper slope	11.03±0.93 βb	0.23±0.051 4 αa	2.33±0.51 βa	0.11±0.008 2 αa
	坡中Middle slope	10.20±1.14 βa	0.17±0.028 0 αab	1.73±0.28 βab	0.10±0.012 5 αa
	坡底Bottom slope	11.50±0.64 γab	0.11±0.037 7 βb	1.06±0.38 βb	0.12±0.004 7 αa
2.0 m×2.0 m	坡顶Upper slope	19.10±1.42 αb	-1.13±0.093 4 βb	-2.83±0.23 δb	0.10±0.009 4 αa
	坡中Middle slope	18.60±1.13 αa	-0.69±0.214 2 γa	-1.74±0.54 δa	0.10±0.004 7 αβa
	坡底Bottom slope	21.00±1.88 αab	-0.73±0.160 8 γab	-1.83±0.40 γab	0.11±0.009 4 αβa
3.0 m×3.0 m	坡顶Upper slope	12.13±2.51 γb	0.13±0.072 1 αb	0.15±0.08 γb	0.04±0.009 4 βb
	坡中Middle slope	21.23±2.72 αa	-0.15±0.078 6 βb	-0.15±0.09 γb	0.07±0.009 4 βa
	坡底Bottom slope	19.97±2.40 βab	1.15±0.322 0 αa	1.27±0.36 βa	0.07±0.004 7 βa

规格 Type	位置 Position	凹曲面深度 Concave surface depth/cm	蚀积量 Erosion volume/g	净堆积强度 Net stacking strength/（g·cm^-3）	蚀积系数 Erosion-deposition coefficient
0.5 m×0.5 m	坡顶Upper slope	5.47±0.45 δb	0.09±0.002 4 αb	3.67±0.10 αa	0.11±0.008 2 αa
	坡中Middle slope	5.17±0.59 γa	0.11±0.003 3 αβa	4.34±0.13 αb	0.10±0.012 5 αa
	坡底Bottom slope	5.87±1.48 δab	0.09±0.007 0 βb	3.58±0.31 αb	0.12±0.033 0 αa
1.0 m×1.0 m	坡顶Upper slope	11.03±0.93 βb	0.23±0.051 4 αa	2.33±0.51 βa	0.11±0.008 2 αa
	坡中Middle slope	10.20±1.14 βa	0.17±0.028 0 αab	1.73±0.28 βab	0.10±0.012 5 αa
	坡底Bottom slope	11.50±0.64 γab	0.11±0.037 7 βb	1.06±0.38 βb	0.12±0.004 7 αa
2.0 m×2.0 m	坡顶Upper slope	19.10±1.42 αb	-1.13±0.093 4 βb	-2.83±0.23 δb	0.10±0.009 4 αa
	坡中Middle slope	18.60±1.13 αa	-0.69±0.214 2 γa	-1.74±0.54 δa	0.10±0.004 7 αβa
	坡底Bottom slope	21.00±1.88 αab	-0.73±0.160 8 γab	-1.83±0.40 γab	0.11±0.009 4 αβa
3.0 m×3.0 m	坡顶Upper slope	12.13±2.51 γb	0.13±0.072 1 αb	0.15±0.08 γb	0.04±0.009 4 βb
	坡中Middle slope	21.23±2.72 αa	-0.15±0.078 6 βb	-0.15±0.09 γb	0.07±0.009 4 βa
	坡底Bottom slope	19.97±2.40 βab	1.15±0.322 0 αa	1.27±0.36 βa	0.07±0.004 7 βa

规格Type	方位Bearing	位置Position	拟合方程Fitting equation	R²
0.5 m×0.5 m	NESW	坡顶Upper slope	Y=0.005 4X² -0.297 9X+8.420 5	0.94
		坡中Middle slope	Y=0.002 9X² -0.123 5X+7.226 4	0.80
		坡底Bottom slope	Y=0.006 6X² -0.431 5X+9.720 9	0.90
	NWSE	坡顶Upper slope	Y=0.003 9X² -0.237 8X+8.077 7	0.87
		坡中Middle slope	Y=0.001 9X² -0.132 3X+8.250 9	0.67
		坡底Bottom slope	Y=0.005 6X² -0.230 9X+5.450 6	0.89
	NS	坡顶Upper slope	Y=0.005 2X² -0.291 8X+8.809 4	0.85
		坡中Middle slope	Y=0.002 4X² -0.105 2X+8.373 7	0.62
		坡底Bottom slope	Y=0.006 8X² -0.313 1X+8.482 8	0.96
	WE	坡顶Upper slope	Y=0.008 1X² -0.460 0X+11.824 0	0.75
		坡中Middle slope	Y=0.004 8X² -0.266 2X+10.111 4	0.50
		坡底Bottom slope	Y=0.007 5X² -0.489 3X+12.308 6	0.44
1.0 m×1.0 m	NESW	坡顶Upper slope	Y=0.002 8X² -0.285 3X+6.534 5	0.95
		坡中Middle slope	Y=0.000 8X² -0.016 8X－0.885 3	0.94
		坡底Bottom slope	Y=0.002 1X² -0.165 0X+1.747 4	0.99
	NWSE	坡顶Upper slope	Y=0.001 1X² -0.122 7X+3.198 8	0.71
		坡中Middle slope	Y=0.001 9X² -0.180 1X+3.338 8	0.83
		坡底Bottom slope	Y=0.002 4X² -0.260 1X+4.909 6	0.98
	NS	坡顶Upper slope	Y=0.002 7X² -0.271 4X+6.843 5	0.87
		坡中Middle slope	Y=0.001 5X² -0.117 2X+2.559 1	0.85
		坡底Bottom slope	Y=0.004 0X² -0.391 7X+8.513 4	0.96
	WE	坡顶Upper slope	Y=0.003 4X² -0.391 4X+13.885 8	0.68
		坡中Middle slope	Y=0.002 9X² -0.287 2X+8.566 4	0.83
		坡底Bottom slope	Y=0.005 1X² -0.530 5X+12.383 7	0.98
2.0 m×2.0 m	NESW	坡顶Upper slope	Y=0.001 2X² -0.279 8X+6.258 5	0.96
		坡中Middle slope	Y=0.001 2X² -0.261 7X+5.486 1	0.93
		坡底Bottom slope	Y=0.001 2X² -0.230 0X+3.048 8	0.92
	NWSE	坡顶Upper slope	Y=-0.000 2X² +0.043 4X-10.955 4	0.22
		坡中Middle slope	Y=0.000 4X² -0.108 9X+0.845 7	0.69
		坡底Bottom slope	Y=0.000 5X² -0.126 1X－0.750 3	0.89
	NS	坡顶Upper slope	Y=0.001 0X² -0.229 4X+6.025 4	0.81
		坡中Middle slope	Y=0.001 0X² -0.219 7X+8.027 7	0.76
		坡底Bottom slope	Y=0.001 2X² -0.258 4X+6.678 5	0.92
	WE	坡顶Upper slope	Y=0.001 6X² -0.353 8X+11.160 3	0.91
		坡中Middle slope	Y=0.001 4X² -0.306 5X+10.874 5	0.72
		坡底Bottom slope	Y=0.001 5X² -0.309 5X+9.783 8	0.80
3.0 m×3.0 m	NESW	坡顶Upper slope	Y=0.000 3X² -0.108X+4.741 2	0.96
		坡中Middle slope	Y=0.000 4X² -0.103 8X-1.329 7	0.53
		坡底Bottom slope	Y=0.000 4X² -0.138 1X+5.625 3	0.87
	NWSE	坡顶Upper slope	Y=0.000 2X² -0.071 7X+4.486 2	0.72
		坡中Middle slope	Y=-0.000 5X² +0.141 9X-10.132 7	0.74
		坡底Bottom slope	Y=0.000 2X² -0.043 6X+5.603 7	0.82
	NS	坡顶Upper slope	Y=0.000 2X² -0.079 0X+5.511 2	0.36
		坡中Middle slope	Y=0.000 2X² -0.102 3X+12.383 0	0.57
		坡底Bottom slope	Y=0.000 4X² -0.158 9X+14.214 3	0.71
	WE	坡顶Upper slope	Y=0.000 4X² -0.130 3X+8.688	0.86
		坡中Middle slope	Y=-0.000 2X² +0.087 9X-9.843 4	0.42
		坡底Bottom slope	Y=0.000 1X² -0.031 8X+3.165 3	0.35

规格Type	方位Bearing	位置Position	拟合方程Fitting equation	R²
0.5 m×0.5 m	NESW	坡顶Upper slope	Y=0.005 4X² -0.297 9X+8.420 5	0.94
		坡中Middle slope	Y=0.002 9X² -0.123 5X+7.226 4	0.80
		坡底Bottom slope	Y=0.006 6X² -0.431 5X+9.720 9	0.90
	NWSE	坡顶Upper slope	Y=0.003 9X² -0.237 8X+8.077 7	0.87
		坡中Middle slope	Y=0.001 9X² -0.132 3X+8.250 9	0.67
		坡底Bottom slope	Y=0.005 6X² -0.230 9X+5.450 6	0.89
	NS	坡顶Upper slope	Y=0.005 2X² -0.291 8X+8.809 4	0.85
		坡中Middle slope	Y=0.002 4X² -0.105 2X+8.373 7	0.62
		坡底Bottom slope	Y=0.006 8X² -0.313 1X+8.482 8	0.96
	WE	坡顶Upper slope	Y=0.008 1X² -0.460 0X+11.824 0	0.75
		坡中Middle slope	Y=0.004 8X² -0.266 2X+10.111 4	0.50
		坡底Bottom slope	Y=0.007 5X² -0.489 3X+12.308 6	0.44
1.0 m×1.0 m	NESW	坡顶Upper slope	Y=0.002 8X² -0.285 3X+6.534 5	0.95
		坡中Middle slope	Y=0.000 8X² -0.016 8X－0.885 3	0.94
		坡底Bottom slope	Y=0.002 1X² -0.165 0X+1.747 4	0.99
	NWSE	坡顶Upper slope	Y=0.001 1X² -0.122 7X+3.198 8	0.71
		坡中Middle slope	Y=0.001 9X² -0.180 1X+3.338 8	0.83
		坡底Bottom slope	Y=0.002 4X² -0.260 1X+4.909 6	0.98
	NS	坡顶Upper slope	Y=0.002 7X² -0.271 4X+6.843 5	0.87
		坡中Middle slope	Y=0.001 5X² -0.117 2X+2.559 1	0.85
		坡底Bottom slope	Y=0.004 0X² -0.391 7X+8.513 4	0.96
	WE	坡顶Upper slope	Y=0.003 4X² -0.391 4X+13.885 8	0.68
		坡中Middle slope	Y=0.002 9X² -0.287 2X+8.566 4	0.83
		坡底Bottom slope	Y=0.005 1X² -0.530 5X+12.383 7	0.98
2.0 m×2.0 m	NESW	坡顶Upper slope	Y=0.001 2X² -0.279 8X+6.258 5	0.96
		坡中Middle slope	Y=0.001 2X² -0.261 7X+5.486 1	0.93
		坡底Bottom slope	Y=0.001 2X² -0.230 0X+3.048 8	0.92
	NWSE	坡顶Upper slope	Y=-0.000 2X² +0.043 4X-10.955 4	0.22
		坡中Middle slope	Y=0.000 4X² -0.108 9X+0.845 7	0.69
		坡底Bottom slope	Y=0.000 5X² -0.126 1X－0.750 3	0.89
	NS	坡顶Upper slope	Y=0.001 0X² -0.229 4X+6.025 4	0.81
		坡中Middle slope	Y=0.001 0X² -0.219 7X+8.027 7	0.76
		坡底Bottom slope	Y=0.001 2X² -0.258 4X+6.678 5	0.92
	WE	坡顶Upper slope	Y=0.001 6X² -0.353 8X+11.160 3	0.91
		坡中Middle slope	Y=0.001 4X² -0.306 5X+10.874 5	0.72
		坡底Bottom slope	Y=0.001 5X² -0.309 5X+9.783 8	0.80
3.0 m×3.0 m	NESW	坡顶Upper slope	Y=0.000 3X² -0.108X+4.741 2	0.96
		坡中Middle slope	Y=0.000 4X² -0.103 8X-1.329 7	0.53
		坡底Bottom slope	Y=0.000 4X² -0.138 1X+5.625 3	0.87
	NWSE	坡顶Upper slope	Y=0.000 2X² -0.071 7X+4.486 2	0.72
		坡中Middle slope	Y=-0.000 5X² +0.141 9X-10.132 7	0.74
		坡底Bottom slope	Y=0.000 2X² -0.043 6X+5.603 7	0.82
	NS	坡顶Upper slope	Y=0.000 2X² -0.079 0X+5.511 2	0.36
		坡中Middle slope	Y=0.000 2X² -0.102 3X+12.383 0	0.57
		坡底Bottom slope	Y=0.000 4X² -0.158 9X+14.214 3	0.71
	WE	坡顶Upper slope	Y=0.000 4X² -0.130 3X+8.688	0.86
		坡中Middle slope	Y=-0.000 2X² +0.087 9X-9.843 4	0.42
		坡底Bottom slope	Y=0.000 1X² -0.031 8X+3.165 3	0.35

乌珠穆沁沙地聚乳酸纤维沙袋沙障地表蚀积特征

Characteristics of Surface Erosion and Deposition of Sandbag Sand Barriers in Urumqi Sandy Land

RichHTML

PDF

可视化

摘要/Abstract

引用本文

使用本文

图/表 6

参考文献 21

相关文章 0

编辑推荐

Metrics