风沙流结构通常是指输沙量随高度的变化情况。但是，有关典型荒漠化治理工程措施风沙流结构的研究尚较为缺乏。本研究利用室内风洞，通过设计不同实验风速，对2种沙障的风沙流结构进行了分析。同时，以流沙地表的风沙流结构作为对照。该数据有助于理解典型荒漠化治理工程对风沙过程的影响，并据此进行优化设计。", "ds_source": "
根据各沙障间差异对草方格及尼龙网格状沙障分别选取8,12,16,20 m/s的4组指示风速,对阻沙栅栏选取8,10,12,14,16,18,20m/s的7组指示风速进行分析,最大程度满足试验相似条件。输沙量采用集沙仪进行量测,布设在洞体中央距一侧60cm 处,同时,对草方格沙障、尼龙网格状沙障与阻沙栅栏的输沙量采用不同规格的集沙仪进行量测,2种集沙仪入口断面分别为1.0cm×0.5cm 和2.0cm×2.0cm。", "ds_process_way": "
风洞试验中输沙量数据通过电子称重传感器（精度±0.01 g）测定，数据采集后录入计算机。原始数据在MATLAB 2018b中经平滑与滤波处理，去除噪声与漂移。", "ds_quality": "
所有数据经严格质量检验。重复测定相对标准偏差小于3%，异常值按3σ准则剔除，拟合精度R²均大于0.95。处理后数据以XLSX格式存储并双重备份，确保精度与可追溯性。", "ds_acq_start_time": "2022-08-15 00:00:00", "ds_acq_end_time": "2022-08-15 00:00:00", "ds_acq_place": "甘肃省敦煌市", "ds_acq_lon_east": 95.0, "ds_acq_lat_south": 39.669444444444444, "ds_acq_lon_west": 93.66944444444445, "ds_acq_lat_north": 40.33305555555556, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 30408, "ds_files_count": 2, "ds_format": "Excel", "ds_space_res": "", "ds_time_res": "", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "1218699c-d137-400f-81a6-cf0a18e77045.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "6d0aa454-9b64-4be5-b0cd-4cc796e6aea0", "ds_serv_man": "李红星", "ds_serv_phone": "0931-4967592", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.45" ], "quality_level": 3, "publish_time": "2026-03-13 18:44:16", "last_updated": "2026-03-13 18:44:16", "protected": false, "protected_to": "2028-03-13 00:00:00", "lang": "zh", "cstr": "11738.11.NCDC.DESERTIFICATION.DB7161.2026", "i18n": { "en": { "title": "Typical desertification control measures: Wind and sand flow structure dataset", "ds_format": "Excel", "ds_source": "
Based on the differences between various sand barriers, four sets of indicated wind speeds of 8, 12, 16, and 20 m/s were selected for grass grid and nylon grid sand barriers, respectively. Seven sets of indicated wind speeds of 8, 10, 12, 14, 16, 18, and 20 m/s were selected for sand barrier analysis to maximize the similarity of experimental conditions. The sediment transport volume is measured using a sand collector, which is installed at a distance of 60cm from one side of the center of the tunnel. At the same time, different specifications of sand collectors are used to measure the sediment transport volume of grass grid sand barriers, nylon grid sand barriers, and sand blocking fences. The inlet cross-sections of the two types of sand collectors are 1.0cm × 0.5cm and 2.0cm × 2.0cm, respectively.", "ds_quality": "
All data undergoes strict quality inspection. The relative standard deviation of repeated measurements is less than 3%. Outliers are removed according to the 3 σ criterion, and the fitting accuracy R ² is greater than 0.95. The processed data is stored in XLSX format and backed up twice to ensure accuracy and traceability.", "ds_ref_way": "", "ds_abstract": "
The structure of wind and sand flow usually refers to the variation of sediment transport with height. However, there is still a lack of research on the structure of wind and sand flow in typical desertification control engineering measures. This study utilized an indoor wind tunnel to analyze the wind and sand flow structures of two types of sand barriers by designing different experimental wind speeds. Meanwhile, the wind and sand flow structure on the surface of quicksand is used as a control. This data helps to understand the impact of typical desertification control projects on sandstorm processes and optimize design accordingly.", "ds_time_res": "", "ds_acq_place": "Dunhuang City, Gansu Province", "ds_space_res": "", "ds_projection": "", "ds_process_way": "
The sediment transport data in the wind tunnel test is measured by an electronic weighing sensor (accuracy ± 0.01 g), and the data is collected and entered into the computer. The raw data was smoothed and filtered in MATLAB 2018b to remove noise and drift.", "ds_ref_instruction": "" } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0", "doi_reg_from": "reg_local", "cstr_reg_from": "reg_local", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "ds_topic_tags": [ "风洞试验", "风沙流", "沙障", "输沙量", "防护效益" ], "ds_subject_tags": [ "地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "甘肃省敦煌市" ], "ds_time_tags": [ 2022 ], "ds_contributors": [ { "true_name": "张克存", "email": "kecunzh@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" }, { "true_name": "潘加朋", "email": "panjiapeng@nieer.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "潘加朋", "email": "panjiapeng@nieer.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "ds_managers": [ { "true_name": "张克存", "email": "kecunzh@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "category": "沙漠与荒漠化" }