本数据集为2021-2024年罗玉沟流域沟口径流站的径流泥沙观测数据。罗玉沟观测断面为自然梯形断面；径流观测采用浮标法测流速，流速面积法计算流量；泥沙取样与测流同步进行，取样次数与测流次数相同，采用水边一点法取沙样，置换法测含沙量。\n
本数据集包括实测流量成果表、逐日平均流量表、逐日平均含沙量表、逐日平均悬移质输沙率表、逐次洪水降水水量观测成果表、逐次洪水测验成果表、洪水水文要素摘录表。", "ds_source": "
人工定时定点观测", "ds_process_way": "
雨量计观测降水量；集流池人工观测产流量；人工取沙样、置换法计算含沙量进而推算产沙量；植被覆盖度采用目估法观测，郁闭度采用测针法观测。", "ds_quality": "
按照“水土保持试验规范”（SD239）和“水土保持试验规程”（SL419）的规定由专业技术人员进行数据的观测、整理、整编。", "ds_acq_start_time": "2021-01-01 00:00:00", "ds_acq_end_time": "2024-12-31 00:00:00", "ds_acq_place": "甘肃省天水市秦州区罗玉沟流域", "ds_acq_lon_east": 105.7388888888889, "ds_acq_lat_south": 34.58888888888889, "ds_acq_lon_west": 105.50833333333334, "ds_acq_lat_north": 34.65555555555555, "ds_acq_alt_low": 1190.0, "ds_acq_alt_high": 1895.3, "ds_share_type": "apply-access", "ds_total_size": 332151, "ds_files_count": 5, "ds_format": "Excel表格", "ds_space_res": null, "ds_time_res": "分、日、次", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "48938def-961b-4638-b26d-88b01b3a4ac6.png", "ds_thumb_from": 2, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "如需申请使用，请联系数据贡献者“黄河水土保持天水治理监督局（天水水土保持科学试验站）” 邮箱：hwtsywk@163.com 电话：17793635836", "ds_from_station": null, "organization_id": "49b5ee01-70c1-4c22-8937-1f94d7fcabe2", "ds_serv_man": "李红星", "ds_serv_phone": "0931-4967592", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [], "quality_level": 3, "publish_time": "2023-01-17 15:28:30", "last_updated": "2025-10-10 15:07:58", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.hwtszhan.db2708.2023", "i18n": { "en": { "title": "2021-2024 Runoff and Sediment Observation Data Set for Gully Flow Stations in the Luoyugou Basin of the Third Sub district of the Loess Hilly and Gully Region", "ds_format": "", "ds_source": "
<pre><code>\nManual fixed time and fixed point observation", "ds_quality": "
<pre><code> <p>According to the provisions of \"Specification for Water and Soil Conservation Test\" (SD239) and \"Specification for Water and Soil Conservation Test\" (SL419), professional technical personnel shall observe, sort out and compile the data.\nThis dataset contains runoff and sediment observation data from the Gully Caliber Flow Station in the Luoyugou Basin from 2021 to 2024. The observation section of Luoyugou is a natural trapezoidal section; The flow observation adopts the buoy method to measure the flow velocity, and the flow velocity area method to calculate the flow rate; Sediment sampling and flow measurement are carried out simultaneously, with the same number of sampling and flow measurement times. Sand samples are taken using the water edge one point method, and sediment concentration is measured using the displacement method.\n
This dataset includes a table of measured flow results, a table of daily average flow, a table of daily average sediment concentration, a table of daily average suspended sediment transport rate, a table of observation results of precipitation in successive floods, a table of test results in successive floods, and an excerpt table of flood hydrological elements.
", "ds_time_res": "分、日、次", "ds_acq_place": "Luoyugou watershed, Qinzhou District, Tianshui City, Gansu Province", "ds_space_res": "", "ds_projection": "", "ds_process_way": " <pre><code> <p>Rainfall observed by rain gauge; Artificial observation of flow yield in the catchment basin; Artificial sand sampling and replacement method are used to calculate sediment concentration and then calculate sediment yield; The vegetation coverage is measured by the visual estimation method, and the canopy closure is measured by the needle method.\n