本数据集提供黄土高原区域土壤水力参数的1 km空间分布数据。数据包括土壤容重（BD）、饱和导水率（Ks）、van Genuchten模型参数α和n、残余含水量（θr）以及饱和含水量（θs），覆盖0-10 cm、10-20 cm、20-40 cm、40-60 cm、60-80 cm、80-100 cm、100-150 cm、150-200 cm、200-300 cm、300-400 cm和400-500 cm等土层。数据基于采样点观测结果，采用普通克里金方法进行空间插值。克里金分析在CGCS2000 / 3-degree Gauss–Krüger zone 36（EPSG:4524）坐标系下进行，分析像元大小为1000 m；最终发布数据转换为WGS 84（EPSG:4326）坐标系，输出栅格像元大小为0.01°，在研究区约相当于1 km。数据以GeoTIFF格式提供，并包含相关空间参考文件、处理参数和数据说明文件，可用于土壤水分模拟、水文分析、水土保持研究和生态系统研究。", "ds_source": "", "ds_process_way": "", "ds_quality": "", "ds_acq_start_time": "2022-01-01 00:00:00", "ds_acq_end_time": "2022-12-31 00:00:00", "ds_acq_place": "黄土高原", "ds_acq_lon_east": 113.97277777777778, "ds_acq_lat_south": 33.57, "ds_acq_lon_west": 102.43277777777779, "ds_acq_lat_north": 40.730000000000004, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 597766496, "ds_files_count": 0, "ds_format": "*.tif", "ds_space_res": "0.01°，约1 km", "ds_time_res": "", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "ee563e68-ac6a-4163-8ee3-fc48a74ed29d.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "None", "ds_from_station": null, "organization_id": "52b7b79b-860c-49a5-9083-9a70cf8bed5a", "ds_serv_man": null, "ds_serv_phone": null, "ds_serv_mail": null, "doi_value": "", "subject_codes": [ "170" ], "quality_level": 0, "publish_time": "2026-09-10 09:45:47", "last_updated": "2026-09-10 09:49:18", "protected": false, "protected_to": "2027-03-03 00:00:00", "lang": "zh", "cstr": "11738.11.ncdc.db7779.2026", "i18n": { "en": { "title": "1-km spatial dataset of soil hydraulic parameters on the Loess Plateau (WGS84)", "ds_abstract": "
This dataset provides 1-km spatial distribution data of soil hydraulic parameters in the Loess Plateau region. Data include soil bulk density (BD), saturated hydraulic conductivity (Ks), van Genuine model parameters α and n, residual water content (θr), and saturated water content (θs), covering soil layers of 0 - 10 cm, 10 - 20 cm, 20 - 40 cm, 40 - 60 cm, 60 - 80 cm, 80 - 100 cm, 100 - 150 cm, 150 - 200 cm, 200 - 300 cm, 300 - 400 cm and 400 - 500 cm. The data is based on the observation results of the sampling points and spatial interpolation is performed using the ordinary kriging method. Kriging analysis was performed in the CGCS2000/3-degree Gauss-Krüger zone 36 (EPSG:4524) coordinate system, and the analysis cell size was 1000 m; the final released data was converted to the WGS84 (EPSG:4326) coordinate system, and the output grid cell size was 0.01°, which is equivalent to approximately 1 km in the study area. The data is provided in GeoTIFF format and contains relevant spatial reference files, processing parameters and data description files, which can be used for soil moisture simulation, hydrological analysis, soil and water conservation research, and ecosystem research.", "ds_time_res": "", "ds_space_res": "0.01°, approximately 1 km", "ds_projection": "" } }, "submit_center_id": "ncdc", "data_level": 0, "recommendation_value": 0, "license_type": "https://creativecommons.org/licenses/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, "belong_to_nieer": false, "allow_update_data": false, "ds_topic_tags": [ "黄土高原", "土壤水力参数", "普通克里金", "空间插值", "土壤水分" ], "ds_subject_tags": [ "地球科学" ], "ds_class_tags": [], "ds_locus_tags": [ "中国黄土高原黄土区" ], "ds_time_tags": [], "ds_contributors": [ { "true_name": "白晓", "email": "baixiao@xust.edu.cn", "work_for": "西安科技大学", "country": "中国" }, { "true_name": "孙名扬", "email": "2971403819@qq.com", "work_for": "西安科技大学", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "白晓", "email": "baixiao@xust.edu.cn", "work_for": "西安科技大学", "country": "中国" }, { "true_name": "孙名扬", "email": "2971403819@qq.com", "work_for": "西安科技大学", "country": "中国" } ], "ds_managers": [ { "true_name": "白晓", "email": "baixiao@xust.edu.cn", "work_for": "西安科技大学", "country": "中国" }, { "true_name": "孙名扬", "email": "2971403819@qq.com", "work_for": "西安科技大学", "country": "中国" } ], "category": "水土保持" }