本数据集为2011-2020年黄土丘陵沟壑区第一副区桥沟流域不同地貌类型径流场观测数据。对桥沟流域不同地貌类型径流场产生径流的次降水量、径流量、泥沙量进行观测。数据包括桥沟不同地貌类型径流场逐次径流泥沙测验成果表、土壤含水率实测成果表，径流场情况见《桥沟不同地貌类型径流场2011-2020年情况说明》。
", "ds_source": "仪器连续观测 人工定时观测
", "ds_process_way": "1.雨量观测：桥沟不同地貌类型径流小区降水量采用桥沟5号雨量站的资料。 2.泥沙取样及处理：径流、泥沙采用不同的观测设施，有三角槽、分水箱、径流池，三角槽在产流过程中采集沙洋；分水箱、径流池在降水结束、径流终止后立即读取径流池水位，根据分水箱、径流池面积、水位计算径流量；将分水箱、径流池泥水搅拌均匀取泥沙样，样品处置采用置换法。 3.土壤含水率：在具有代表性的固定地点，去除表层杂草后，在30 cm深度取样，用烘干（称重）法测定。
", "ds_quality": "观测数据整编录入过程中经过四级人工校核，分别是制表、初校、复校、审核，以确保数据质量。
", "ds_acq_start_time": "2011-01-01 00:00:00", "ds_acq_end_time": "2020-12-31 00:00:00", "ds_acq_place": "陕西省榆林市绥德县桥沟流域", "ds_acq_lon_east": 110.29555555555555, "ds_acq_lat_south": 37.49277777777778, "ds_acq_lon_west": 110.29138888888889, "ds_acq_lat_north": 37.50361111111111, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 166256, "ds_files_count": 8, "ds_format": "xls，doc，pdf", "ds_space_res": null, "ds_time_res": "次", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "e5fb9909-1bd9-4346-a9f8-23d6be81f9e3.jpg", "ds_thumb_from": 2, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "f447b2e7-0b54-4601-8d49-0164f2a3fd9a", "ds_serv_man": "敏玉芳", "ds_serv_phone": "09314967597", "ds_serv_mail": "myf@lzb.ac.cn", "doi_value": "", "subject_codes": [], "quality_level": 3, "publish_time": "2021-12-03 16:49:05", "last_updated": "2023-08-29 19:59:39", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.HWSDZhan.2020.98", "i18n": { "en": { "title": "Data set of bridge runoff field in Qiaogou watershed, the first sub region of Loess Hilly and gully region, 2011-2020", "ds_format": "", "ds_source": " Instrument continuous observation manual observation\n In the process of integration and input of observation data, there are four levels of manual verification, which are tabulation, primary calibration, re calibration and audit, to ensure the data quality.\n <p>This data set is the runoff field data of different landform types in Qiaogou watershed, the first sub region of Loess Hilly and gully region from 2011 to 2020. The secondary precipitation, runoff and sediment yield of runoff from different geomorphic types in Qiaogou watershed were observed. The flow field is shown in the table of basic flow field of bridge ditch. </p>\n <p>1. Rainfall observation: there are SM1 ordinary rain gauge with diameter of 20cm and dsj2 siphon self recording rain gauge. The data of Qiaogou No.5 rainfall station are used for the precipitation of runoff plots of different geomorphic types in Qiaogou.\n2.Sediment sampling and treatment: different observation facilities are adopted for runoff and sediment, including triangular weir, triangular groove, water distribution tank and runoff pool. Sand ocean is collected by triangular weir and triangular groove in the process of runoff generation; the water level of runoff pool is read immediately after precipitation and runoff is terminated, and runoff is calculated according to the area and water level of water distribution tank and runoff pool The sediment sample (500cm3) was taken by mixing water evenly, and the replacement method was used for sample disposal.\n3.Soil moisture content: in a representative fixed site, after removing the surface weeds, samples were taken at a depth of 30 cm and determined by drying (weighing) method.",
"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": [
"次降水强度",
"含沙量",
"冲刷量",
"径流深",
"径流系数",
"径流",
"次降水量"
],
"ds_subject_tags": [],
"ds_class_tags": [],
"ds_locus_tags": [
"桥沟",
"绥德",
"榆林",
"陕西省"
],
"ds_time_tags": [
2011,
2012,
2013,
2014,
2015,
2016,
2017,
2018,
2019,
2020
],
"ds_contributors": [
{
"true_name": "黄河水土保持绥德治理监督局（绥德水土保持科学试验站）",
"email": "hhstbcsdzljdj@163.com",
"work_for": "黄河水土保持绥德治理监督局（绥德水土保持科学试验站）",
"country": "中国"
}
],
"ds_meta_authors": [
{
"true_name": "雷欣",
"email": "hhstbcsdzljdj@163.com",
"work_for": "黄河水土保持绥德治理监督局（绥德水土保持科学试验站）",
"country": "中国"
}
],
"ds_managers": [
{
"true_name": "郭玉梅",
"email": "hhstbcsdzljdj@163.com",
"work_for": "黄河水土保持绥德治理监督局（绥德水土保持科学试验站）",
"country": "中国"
},
{
"true_name": "黄河水土保持绥德治理监督局（绥德水土保持科学试验站）",
"email": "hhstbcsdzljdj@163.com",
"work_for": "黄河水土保持绥德治理监督局（绥德水土保持科学试验站）",
"country": "中国"
}
],
"category": "水土保持"
}