干旱区生态环境知识资源中心(Arid): 乌玛高速公路中卫段风沙环境及输移规律

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	乌玛高速公路中卫段风沙环境及输移规律
其他题名	Surface Sand Grain Characteristics Along Zhongwei Section of Wuhai-Maqin Highway
	王金国; 安志山; 张克存; 屈建军; 何明珠
来源期刊	水土保持研究
ISSN	1005-3409
出版年	2021
卷号	28 期号:6 页码:183-189
中文摘要	作为宁夏自治区南北向交通运输通道,乌玛高速公路对于带动区域经济发展有着重要意义。为保证公路正常运行,该文采用野外定位监测和室内分析方法,揭示了公路沿线风沙活动规律。结果表明:(1)区域0~5m/s等级的风速频次占全年风速的90.45%,起沙风向主要集中在西北、东和偏南方向,合成输沙方向为偏东南方向;研究区输沙势小于200VU,属于低风能环境。(2)沿乌玛高速公路自东北向西南方向,所有样品均以细沙和中沙为主,粒径范围集中在1.0~2.76Phi。除5号采样点20cm,50cm和100cm深度沉积物的百分含量分布曲线呈双峰态,其余样品全部为单峰态,表明研究区域表层沉积物经过了充分分选。随着深度的增加,不同粒径范围百分含量的变化规律并非十分明显,即区域风能环境比较稳定。(3)所有样品分选性较好或很好,偏度为正偏或极正偏,粒径偏粗。(4)区域内风沙流主要集中在30cm以下,占总输沙量的89.46%,地表0~20cm高度内的输沙量占总输沙量的63.81%。基于防护体系走向与区域合成输沙方向垂直时可取得较好防护效益,建议乌玛高速防护体系走向设计为东北-西南,且固沙措施的高度不低于20cm。
英文摘要	As an important north-south traffic channel in the Ningxia Autonomous Region,the Wuhai-Maqin highway is of great significance for driving economic development in the autonomous region and transportation pressure in the environmental region.Through field investigation and sampling,combining with indoor analysis experiments,the distribution characteristics of surface sand particles along the Tengger Desert section of Wuhai-Maqin highway were studied.The results show that:(1)the frequency of wind speed of 0~5 m/s level in the area accounted for 90.45%of the annual wind speed;the winds of sand blowing mainly concentrated in the northwest,east and south directions,the direction of sand transport was combined,and the synthetic transport potential was in the southeast direction;the area where the transport potential was less than 200VU belonged to a low wind energy environment;(2)from northeast to southwest,the particle size range of all samples concentrated in 1.0~2.76Phi,and mainly belonged to fine sand and medium sand;except for the No.5plot,the cumulative frequency distribution curves of the sediments at the depths of 20cm,50cm and 100cm were bimodal,and the rest of the samples were all unimodal,indicating that the sediments had been fully sorted,and sedimentary environment was dominated by the early two groups of dominant wind directions;(3)with the increase of depth,the change of percentage content in different particle size ranges was not very obvious,and the sorting performance was good or very good,the skewness was positive or extremely positive;(4)the sand flow in the area mainly concentrated below 30cm,accounting for 89.46%of the total sediment transport,and the sediment transport within the height of 0~20cm on the surface accounted for 63.81% of the total sediment transport.The direction of the Wuhai-Maqin Highway protection system should be northeast-southwest which is perpendicular to the direction of the regional synthetic sand transport.It is suggested that the height of the sand fixation measures should not be less than 20cm.
中文关键词	乌玛高速公路 ; 输沙势 ; 粒度特征 ; 风沙流
英文关键词	Wuhai-Maqin Highway drift potential particle size characteristics sand flow structure
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:7111318
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377951
作者单位	王金国, 宁夏交投工程建设管理有限公司, 银川, 宁夏 750000, 中国.; 安志山, 中国科学院西北生态环境资源研究院;;中国科学院大学, 中国科学院沙漠与沙漠化重点实验室;;中国科学院敦煌戈壁荒漠生态与环境研究站;;, 兰州;;, ;;北京 730000;;100049.; 张克存, 中国科学院西北生态环境资源研究院, 中国科学院沙漠与沙漠化重点实验室;;中国科学院敦煌戈壁荒漠生态与环境研究站, 兰州, 甘肃 730000, 中国.; 屈建军, 中国科学院西北生态环境资源研究院, 中国科学院沙漠与沙漠化重点实验室;;中国科学院敦煌戈壁荒漠生态与环境研究站, 兰州, 甘肃 730000, 中国.; 何明珠, 中国科学院西北生态环境资源研究院, 中国科学院沙漠与沙漠化重点实验室;;中国科学院敦煌戈壁荒漠生态与环境研究站, 兰州, 甘肃 730000, 中国.
推荐引用方式 GB/T 7714	王金国,安志山,张克存,等. 乌玛高速公路中卫段风沙环境及输移规律[J],2021,28(6):183-189.
APA	王金国,安志山,张克存,屈建军,&何明珠.(2021).乌玛高速公路中卫段风沙环境及输移规律.水土保持研究,28(6),183-189.
MLA	王金国,et al."乌玛高速公路中卫段风沙环境及输移规律".水土保持研究 28.6(2021):183-189.