{ "created": "2022-03-25 16:12:42", "updated": "2026-05-06 06:27:29", "id": "9c7ea208-c9dc-40b9-ac40-d149fdbc8e6e", "version": 18, "ds_topic": null, "title_cn": "基于世界土壤数据库（HWSD）泾河流域土壤数据集（1995年）", "title_en": "Based on the world soil database (hwsd) Jinghe River basin soil data set (1995)", "ds_abstract": "

  数据来源于联合国粮农组织（FAO）和维也纳国际应用系统研究所(IIASA)所构建的世界土壤数据库(Harmonized World Soil Database version 1.2 )(HWSD) 中国境内数据源为第二次全国土地调查南京土壤所所提供的1：100万土壤数据。 采用的土壤分类系统主要为FAO-90。\n

  核心土壤制度单元唯一验证标识符：\n

  MU_GLOBAL-HWSD数据库土壤制图单元标示符，连接了GIS图层;\n

  MU_SOURCE1 和 MU_SOURCE2- 源数据库制图单元标识符;\n

  SEQ-土壤制图单元组成中的土壤单元序列；\n

  土壤分类系统利用FAO-7分类系统或 FAO-90分类系统(SU_SYM74 resp. SU_SYM90)或FAO-85(SU_SYM85)。\n

  土壤属性表主要字段包括:\n

  ID(数据库ID)；\n

  MU_GLOBAL(土壤单元标识符)（全球）；\n

  SU_SYMBOL 土壤制图单元；\n

  SU_SYM74(FAO74分类);\n

  SU_SYM85(FAO85分类);\n

  SU_SYM90（FAO90土壤分类系统中土壤名称)；\n

  SU_CODE 土壤制图单元代码；\n

  SU_CODE74 土壤单元名称；\n

  SU_CODE85 土壤单元名称；\n

  SU_CODE90 土壤单元名称 DRAINAGE(19.5);\n

  REF_DEPTH(土壤参考深度);\n

  AWC_CLASS(19.5);\n

  AWC_CLASS(土壤有效水含量);\n

  PHASE1: Real (土壤相位);\n

  PHASE2: String (土壤相位)；\n

  ROOTS: String (到土壤底部存在障碍的深度分类)；\n

  SWR: String (土壤含水量特征)；\n

  ADD_PROP: Real (土壤单元中与农业用途有关的特定土壤类型)；\n

  T_TEXTURE(顶层土壤质地);\n

  T_GRAVEL: Real (顶层碎石体积百分比)；\n

  T_SAND: Real (顶层沙含量)；\n

  T_SILT: Real (表层粉沙粒含量)；\n

  T_CLAY: Real (顶层粘土含量)；\n

  T_USDA_TEX: Real (顶层USDA土壤质地分类)；\n

  T_REF_BULK: Real (顶层土壤容重)；\n

  T_OC: Real (顶层有机碳含量)；\n

  T_PH_H2O: Real (顶层酸碱度)；\n

  T_CEC_CLAY: Real (顶层粘性层土壤的阳离子交换能力)；\n

  T_CEC_SOIL: Real (顶层土壤的阳离子交换能力)；\n

  T_BS: Real (顶层基本饱和度)；\n

  T_TEB: Real (顶层交换性盐基)；\n

  T_CACO3: Real (顶层碳酸盐或石灰含量)；\n

  T_CASO4: Real (顶层硫酸盐含量)；\n

  T_ESP: Real (顶层可交换钠盐)；\n

  T_ECE: Real (顶层电导率)；\n

  S_GRAVEL: Real (底层碎石体积百分比)；\n

  S_SAND: Real (底层沙含量)；\n

  S_SILT: Real (底层淤泥含量)；\n

  S_CLAY: Real (底层粘土含量)； S_USDA_TEX: Real (底层USDA土壤质地分类)；\n

  S_REF_BULK: Real (底层土壤容重)；\n

  S_OC: Real (底层有机碳含量)；\n

  S_PH_H2O: Real (底层酸碱度)；\n

  S_CEC_CLAY: Real (底层粘性层土壤的阳离子交换能力)；\n

  S_CEC_SOIL: Real (底层土壤的阳离子交换能力)；\n

  S_BS: Real (底层基本饱和度)；\n

  S_TEB: Real (底层交换性盐基)；\n

  S_CACO3: Real (底层碳酸盐或石灰含量)；\n

  S_CASO4: Real (底层硫酸盐含量)；\n

  S_ESP: Real (底层可交换钠盐)；\n

  S_ECE: Real (底层电导率)；\n

  本数据库分两层，其中以顶层（T）土壤厚度为（0-30cm），底层（S）土壤厚度为（30-100cm）。", "ds_source": "

  数据来源于联合国粮农组织（FAO）和维也纳国际应用系统研究所(IIASA)所构建的世界土壤数据库(Harmonized World Soil Database version 1.2 )(HWSD). 中国境内数据源为第二次全国土地调查南京土壤所所提供的1：100万土壤数据。", "ds_process_way": "

  采用的土壤分类系统主要为FAO-90。", "ds_quality": "

  数据集通过严格的人工审核控制质量。", "ds_acq_start_time": "1995-01-01 00:00:00", "ds_acq_end_time": "1995-12-31 00:00:00", "ds_acq_place": "泾河流域", "ds_acq_lon_east": 108.86583333333333, "ds_acq_lat_south": 34.65, "ds_acq_lon_west": 106.19166666666668, "ds_acq_lat_north": 37.39888888888889, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 29922, "ds_files_count": 2, "ds_format": "栅格数据", "ds_space_res": null, "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "9c7ea208-c9dc-40b9-ac40-d149fdbc8e6e.jpg", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "用户在使用数据时请在正文中明确声明数据的来源，并在参考文献部分引用本元数据提供的引用方式。", "ds_from_station": null, "organization_id": "bf1ae243-c102-4b2d-a2f6-b698468f4401", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "10.12072/ncdc.JRiver.db1983.2022", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2022-04-08 10:18:34", "last_updated": "2025-06-30 15:52:29", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.jriver.db1983.2022", "i18n": { "en": { "title": "Based on the world soil database (hwsd) Jinghe River basin soil data set (1995)", "ds_format": "Raster", "ds_source": "

    The data is sourced from the Coordinated World Soil Database version 1.2 (HWSD) constructed by the Food and Agriculture Organization of the United Nations (FAO) and the Vienna International Institute for Applied Systems Research (IIASA). The domestic data source in China is the 1:1 million soil data provided by the Nanjing Soil Institute of the Second National Land Survey.", "ds_quality": "

    The dataset undergoes strict manual review to control its quality.", "ds_ref_way": "", "ds_abstract": "

 The data comes from the harmonized world soil database version 1.2 (hwsd) built by FAO and IIASA The data source in China is the 1:1 million soil data provided by Nanjing Soil Institute of the second national land survey. The adopted soil classification system is mainly fao-90.\n 

\n

 unique verification identifier of core soil system unit:\n  

\n

 MU_ Global-hwsd database soil mapping unit identifier, connecting GIS layers.\n  

\n

 MU_ Source1 and mu_ Source2 - source database mapping unit identifier\n  

\n

 SEQ - sequence of soil units in the composition of soil mapping units;\n 

\n

 the soil classification system uses fao-7 classification system or fao-90 classification system (su_sym74 resp. Su_sym90) or fao-85 (su_sym85)\n 

\n

 the main fields of the soil attribute table include:\n  

\n

 ID (database ID)\n  

\n

 MU_ Global (soil unit identifier) (global)\n  

\n

 SU_ Symbol soil mapping unit\n  

\n

 SU_ Sym74 (fao74 classification);\n  

\n

 SU_ Sym85 (fao85 classification);\n  

\n

 SU_ Sym90 (soil name in FAO 90 soil classification system);\n  

\n

 SU_ Code soil mapping unit code\n  

\n

 SU_ Code74 name of soil unit\n  

\n

 SU_ Soil unit name\n  

\n

 SU_ Code90 soil unit name drainage (19.5);\n  

\n

 REF_ Depth (soil reference depth);\n  

\n

 AWC_ CLASS(19.5);\n  

\n

 AWC_ Class (soil available water content);\n 

\n

 Phase1: real;\n  

\n

 Phase2: string (soil phase);\n 

\n

 roots: string (depth classification of obstacles to the soil bottom);\n  

\n

 SWR: string (soil water content characteristics);\n  

\n

 ADD_ Prop: real (specific soil type related to agricultural use in soil unit);\n  

\n

 T_ Texture (top soil texture);\n  

\n

 T_ Gravel: real (volume percentage of top gravel);\n  

\n

 T_ Sand: real (top sand content);\n  

\n

 T_ Sit: real (content of silty sand on the surface);\n  

\n

 T_ Clay: real (clay content in the top layer);\n  

\n

 T_ USDA_ Tex: real (top USDA soil texture classification);\n  

\n

 T_ REF_ Bulk: real (top soil bulk density);\n  

\n

 T_ OC: real (top organic carbon content);\n  

\n

 T_ PH_ H2O: real (top pH);\n  

\n

 T_ CEC_ Clay: real (cation exchange capacity of top cohesive layer soil);\n  

\n

 T_ CEC_ Soil: real (cation exchange capacity of top soil);\n  

\n

 T_ BS: real (top basic saturation);\n  

\n

 T_ TEB: real (top exchangeable base);\n  

\n

 T_ CaCO3: real (top carbonate or lime content);\n  

\n

 T_ CaSO4: real (top sulfate content);\n  

\n

 T_ ESP: real (top exchangeable sodium salt);\n  

\n

 T_ ECE: real (top conductivity);\n  

\n

 S_ Gravel: real (volume percentage of bottom gravel);\n  

\n

 S_ Sand: real (bottom sand content);\n  

\n

 S_ Sit: real (bottom silt content);\n  

\n

 S_ Clay: real (bottom clay content); S_ USDA_ Tex: real (USDA soil texture classification of bottom layer);\n  

\n

 S_ REF_ Bulk: real (bulk density of underlying soil);\n  

\n

 S_ OC: real (bottom organic carbon content);\n  

\n

 S_ PH_ H2O: real;\n  

\n

 S_ CEC_ Clay: real (cation exchange capacity of soil in bottom cohesive layer);\n  

\n

 S_ CEC_ Soil: real (cation exchange capacity of underlying soil);\n  

\n

 S_ BS: real (basic saturation of bottom layer);\n  

\n

 S_ TEB: real (bottom exchangeable base);\n  

\n

 S_ CaCO3: real (bottom carbonate or lime content);\n  

\n

 S_ CaSO4: real (bottom sulfate content);\n  

\n

 S_ ESP: real (exchangeable sodium salt at the bottom);\n  

\n

 S_ ECE: real (bottom conductivity);\n  

\n

 the database is divided into two layers, in which the top layer (T) soil thickness is (0-30cm) and the bottom layer (s) soil thickness is (30-100cm).

", "ds_time_res": "", "ds_acq_place": "Jinghe River Basin", "ds_space_res": "", "ds_projection": "", "ds_process_way": "

    The soil classification system mainly used is FAO-90.", "ds_ref_instruction": "When using the data, users should clearly state the source of the data in the text and quote the reference method provided by this metadata in the References section." } }, "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": [ "世界土壤数据库", "泾河流域", "土壤地质", "土壤相位" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "泾河流域", "宁夏回族自治区", "甘肃省", "陕西省" ], "ds_time_tags": [ 1995 ], "ds_contributors": [ { "true_name": "张耀南", "email": "yaonan@lzb.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": "李红星", "email": "lihongxing@lzb.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": "敏玉芳", "email": "myf@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": "其他" }