本数据集为2001-2010年南小河沟流域土壤含水率观测数据，径流场土壤含水量观测时间一般是10天一次，即每月1日、11日、21日取样，在发生径流的径流场，必须加测雨后的土壤含水率，取样位置在径流小区保护带内，常规方法采用重差法。在小区保护带内，用土钻（或者洛阳铲）按代表深度10cm、20cm、40cm、60cm、80cm、100cm深分层取样，每层取样两个，平行观测土壤含水率，平均值为该土层土壤含水率。
", "ds_source": "人工定时观测
", "ds_process_way": "土壤含水率观测时间间隔一般是10天一次，即每月1日、11日、21日取样，在降水后必须加测雨后的土壤含水率。用土钻按代表深度0-10cm、10-20cm、20-40cm、40-60cm、60-80cm、80-100cm深分层取样，每层取样两个，用烘干法处理，重差法计算。平行观测土壤含水率，其平均值为该土层土壤含水率。
", "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": "2001-01-01 00:00:00", "ds_acq_end_time": "2010-12-31 00:00:00", "ds_acq_place": "甘肃省庆阳市西峰区后官寨乡南小河沟流域", "ds_acq_lon_east": 107.50833333333334, "ds_acq_lat_south": 35.68083333333333, "ds_acq_lon_west": 107.62388888888889, "ds_acq_lat_north": 35.74861111111111, "ds_acq_alt_low": 1050.0, "ds_acq_alt_high": 1423.0, "ds_share_type": "apply-access", "ds_total_size": 280064, "ds_files_count": 2, "ds_format": "excel表格", "ds_space_res": null, "ds_time_res": "分", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "b7f7f4e4-83d8-427a-a80e-f2a2db0fbaf6.jpg", "ds_thumb_from": 0, "ds_ref_way": "黄河水利委员会西峰水土保持科学试验站，2001-2010年黄土高塬沟壑区南小河沟流域土壤含水率观测数据集，国家冰川冻土沙漠科学数据中心(www.ncdc.ac.cn)，2020，doi：10.12072/ncdc.HWXFZhan.db0014.2020", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "8f345532-a01e-49ca-a880-641bc176ede9", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": null, "quality_level": 3, "publish_time": "2020-11-18 07:57:12", "last_updated": "2021-07-08 19:06:57", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.HWXFZhan.2020.104", "i18n": { "en": { "title": "Observation data set of soil moisture content in Nanxiaohegou watershed in Loess Plateau Gully Region from 2001 to 2010", "ds_format": "", "ds_source": "Artificial timing observation
", "ds_quality": "In the process of compilation and input of observation data, there are four levels of manual verification, including tabulation, primary calibration, recheck and audit, so as to ensure the data quality.
", "ds_ref_way": "", "ds_abstract": "This data set is the observation data of soil moisture content in Nanxiaohegou watershed from 2001 to 2010. The observation time of soil moisture content in runoff field is generally once every 10 days, that is, sampling on the 1st, 11th and 21st of each month. In the runoff field, the soil moisture content after rain must be measured. The sampling location is in the protection zone of runoff plot, and the gravity difference method is used in the conventional method. In the protection zone of the plot, soil drill (or Luoyang shovel) is used to take samples in layers with representative depths of 10cm, 20cm, 40cm, 60cm, 80cm and 100cm. Two samples are taken from each layer, and the soil moisture content is observed in parallel. The average value is the soil moisture content of the soil layer.
", "ds_time_res": "分", "ds_acq_place": "Nanxiaohegou watershed, houguanzhai Township, Xifeng District, Qingyang City, Gansu Province", "ds_space_res": "", "ds_projection": "", "ds_process_way": "The observation interval of soil moisture content is generally once every 10 days, that is, sampling on the 1st, 11th and 21st of each month. After precipitation, the soil moisture content after rain must be measured. Soil drill is used to sample in layers with representative depths of 0-10cm, 10-20cm, 20-40cm, 40-60cm, 60-80cm, 80-100cm. Two samples are taken from each layer, which are treated by drying method and calculated by weight difference method. Parallel observation of soil moisture content, its average value is the soil moisture content of the soil layer.
\n", "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, "is_paper_in_submitting": false, "ds_topic_tags": [ "土壤含水率，垂线平均土壤含水率(%)，两测次间 降水量 (mm)，取样深度(cm)，样地编号，" ], "ds_subject_tags": [ "水文测量" ], "ds_class_tags": [], "ds_locus_tags": [ "庆阳", "西峰", "南小河沟", "甘肃省" ], "ds_time_tags": [ 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 ], "ds_contributors": [ { "true_name": "黄河水利委员会西峰水土保持科学试验站", "email": "18526328@qq.com", "work_for": "黄河水利委员会西峰水土保持科学试验站", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "袁静", "email": "317806317@qq.com", "work_for": "黄河水利委员会西峰水土保持科学试验站", "country": "中国" } ], "ds_managers": [ { "true_name": "袁静", "email": "317806317@qq.com", "work_for": "黄河水利委员会西峰水土保持科学试验站", "country": "中国" } ], "category": "水土保持" }