文献类型：期刊文献

中文题名：乌兰布和沙漠公路“麦草沙障-梭梭”的防护效益

英文题名：Research on the Protective Benefits of the‘Wheat Grass Sand Barrier Haloxylon ammodendron’on the Ulanbuh Desert Highway

作者：崔健[1,2] 高君亮[1,2,3,4] 乔靖然[1,2] 于猛[1,2] 许亚欣[1,2]

第一作者：崔健

机构：[1]中国林业科学研究院沙漠林业实验中心,内蒙古磴口015200;[2]国家林业草原防沙治沙工程技术研究中心,内蒙古磴口015200;[3]乌兰布和沙漠综合治理国家长期科研基地,内蒙古磴口015200;[4]内蒙古磴口荒漠生态系统国家定位观测研究站,内蒙古磴口015200

年份：2024

卷号：31

期号：1

起止页码：250-259

中文期刊名：水土保持研究

外文期刊名：Research of Soil and Water Conservation

收录：CSTPCD;;北大核心:【北大核心2023】；CSCD:【CSCD2023_2024】；

基金：内蒙古自治区科技计划项目(2020GG0125);巴彦淖尔市科技计划项目(K202125);国家自然科学基金(32001374)。

语种：中文

中文关键词：公路沙害;防风固沙体系;防护效益;乌兰布和沙漠

外文关键词：highway sand damage;windproof sand fixation system;protection efficiency;Ulan Buh Desert

分类号：X171.4;P425.55

摘要：[目的]研究公路防护体系的防风固沙作用为区域公路沙害防治提供科学依据。[方法]以乌兰布和沙漠东北部磴—额线沙漠公路防护体系为研究对象,并对防护体系的输沙量和风速进行了同步观测。[结果](1)风沙流穿过防护体系后各高度风速和总输沙量降低,地表粗糙度增大,防护体系上风向(B点)和下风向(C点)风速由高到低较A点降低分别48.7%,14.4%和3.9%;总输沙率分别较A点降低86.4%和98.3%,地表粗糙度约由0 cm增大到4.92 cm。(2)沙物质粒径的垂直分布表现出中砂含量显著降低,细砂含量显著增加;表层沉积物颗粒粒级变小,频率分布曲线部分波段变窄,分选性变差,颗粒分布均匀且颗粒向着细粒化方向发展,易风蚀颗粒范围在180~200μm。[结论]对于道路防沙工程要有“以阻为主,阻固结合”的建设思想,同时本研究区道路防风固沙体系实践可以为其他区域公路防沙提供重要借鉴经验。
[Objective]Studying the windbreak and sand fixation effects of highway protection systems can provide scientific basis for the prevention and control of sand damage on regional highways.[Methods]The protection system of the Deng-E Desert Highway in the northeast of Ulanbuhe Desert was taken as the research object,and synchronous observation was conducted on the sediment discharge and wind speed of the protective system.[Results](1)After the sand flow passes through the protection system,the wind speed and total sand transport at each height decrease,and the surface roughness increases.The wind speed in the upwind direction(point B)and downwind direction(point C)of the protection system decreases by 48.7%,14.4%,and 3.9%,respectively,compared to point A from high to low.The total sand transport rate decreased by 86.4%and 98.3%,respectively,compared to point A,and the surface roughness increases from about 0 cm to 4.92 cm.(2)The vertical distribution of sand particle size shows a significant decrease in medium sand content and a significant increase in fine sand content.The particle size distribution of surface sediment decreases,the frequency distribution curve narrows in some bands,and the sorting ability deteriorates.The particle distribution is uniform and develops towards fine-grained direction,with a range of easily weathered particles ranging from 180 to 200μm.[Conclusion]For road sand prevention projects,there should be a construction concept of“putting resistance first and combining resistance and fixation”.At the same time,the practice of road wind and sand prevention and fixation systems in this research area can provide important reference experience for road sand prevention in the other regions.