{ "created": "2023-12-12 15:11:31", "updated": "2026-05-01 14:03:06", "id": "4a362833-fd32-445a-85c1-1786fbb0cc1f", "version": 4, "ds_topic": null, "title_cn": "基于世界土壤数据库（HWSD）甘肃省土壤数据集", "title_en": "Based on the World Soil Database (HWSD) Gansu Province Soil Dataset", "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

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  核心土壤制度单元唯一验证标识符：\n

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

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

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  SEQ-土壤制图单元组成中的土壤单元序列；\n

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  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\n

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  土壤属性表主要字段包括：\n

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  ID(数据库ID)；\n

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  MU_GLOBAL(土壤单元标识符)（全球）；\n

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  SU_SYMBOL 土壤制图单元；\n

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  SU_SYM74(FAO74分类)；\n

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  SU_SYM85(FAO85分类)；\n

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  SU_SYM90（FAO90土壤分类系统中土壤名称)；\n

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  SU_CODE 土壤制图单元代码；\n

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  SU_CODE74 土壤单元名称；\n

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  SU_CODE85 土壤单元名称；\n

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  SU_CODE90 土壤单元名称；\nDRAINAGE(19.5)；\n

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  REF_DEPTH(土壤参考深度)；\n

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  AWC_CLASS(19.5)；\n

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  AWC_CLASS(土壤有效水含量)；\n

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  PHASE1: Real (土壤相位)；\n

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  PHASE2: String (土壤相位)；\n

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  ROOTS: String (到土壤底部存在障碍的深度分类)；\n

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  SWR: String (土壤含水量特征)；\n

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

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  T_TEXTURE(顶层土壤质地)；\n

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  T_GRAVEL: Real (顶层碎石体积百分比)；\n

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  T_SAND: Real (顶层沙含量)；\n

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  T_SILT: Real (表层粉沙粒含量)；\n

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  T_CLAY: Real (顶层粘土含量)；\n

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  T_USDA_TEX: Real (顶层USDA土壤质地分类)；\n

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  T_REF_BULK: Real (顶层土壤容重)；\n

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  T_OC: Real (顶层有机碳含量)；\n

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  T_PH_H2O: Real (顶层酸碱度)；\n

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

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  T_CEC_SOIL: Real (顶层土壤的阳离子交换能力)；\n

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  T_BS: Real (顶层基本饱和度)；\n

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  T_TEB: Real (顶层交换性盐基)；\n

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  T_CACO3: Real (顶层碳酸盐或石灰含量)；\n

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  T_CASO4: Real (顶层硫酸盐含量)；\n

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  T_ESP: Real (顶层可交换钠盐)；\n

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  T_ECE: Real (顶层电导率)；\n

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  S_GRAVEL: Real (底层碎石体积百分比)；\n

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  S_SAND: Real (底层沙含量)；\n

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  S_SILT: Real (底层淤泥含量)；\n

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

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  S_REF_BULK: Real (底层土壤容重)；\n

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  S_OC: Real (底层有机碳含量)；\n

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  S_PH_H2O: Real (底层酸碱度)；\n

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

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  S_CEC_SOIL: Real (底层土壤的阳离子交换能力)；\n

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  S_BS: Real (底层基本饱和度)；\n

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  S_TEB: Real (底层交换性盐基)；\n

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  S_CACO3: Real (底层碳酸盐或石灰含量)；\n

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  S_CASO4: Real (底层硫酸盐含量)；\n

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  S_ESP: Real (底层可交换钠盐)；\n

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  S_ECE: Real (底层电导率)；\n

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  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）。 \n

", "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": "

  数据质量良好。", "ds_acq_start_time": "1995-01-01 00:00:00", "ds_acq_end_time": "1995-12-31 00:00:00", "ds_acq_place": "甘肃省", "ds_acq_lon_east": 108.71305555555556, "ds_acq_lat_south": 32.596111111111114, "ds_acq_lon_west": 92.33777777777777, "ds_acq_lat_north": 42.79333333333333, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 50147064, "ds_files_count": 5, "ds_format": "栅格数据", "ds_space_res": null, "ds_time_res": "", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "4a362833-fd32-445a-85c1-1786fbb0cc1f.png", "ds_thumb_from": 2, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "526ff655-4cd4-4650-bb86-6fd3481dfb65", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2023-12-27 09:25:20", "last_updated": "2025-06-30 16:30:15", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.NCDC.GSEER.DB4128.2023", "i18n": { "en": { "title": "Based on the World Soil Database (HWSD) Gansu Province Soil Dataset", "ds_format": "tif", "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 data quality is good.", "ds_ref_way": "", "ds_abstract": "

The data were obtained from the Harmonized World Soil Database version 1.2 (HWSD) constructed by the Food and Agriculture Organization of the United Nations (FAO) and the International Institute for Applied Systems (IIASA), Vienna. The data source in China is the 1:1 million soil data provided by the Nanjing Soil Survey of the Second National Land Survey. The soil classification system used was mainly FAO-90.

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Unique validation identifier for core soil system units:

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MU_GLOBAL-HWSD database soil mapping unit identifier with GIS layers connected.

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MU_SOURCE1 and MU_SOURCE2- Source database mapping unit identifiers.

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SEQ-Soil unit sequence in the soil mapping unit composition;

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The soil classification system utilizes the FAO-7 classification system or the FAO-90 classification system (SU_SYM74 resp. SU_SYM90) or FAO-85 (SU_SYM85).

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The main fields of the soil properties table include:

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ID (database ID);

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MU_GLOBAL (soil unit identifier) (global);

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SU_SYMBOL Soil mapping unit;

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SU_SYM74 (FAO74 classification);

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SU_SYM85 (FAO85 classification);

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SU_SYM90 (soil names in the FAO90 soil classification system);

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SU_CODE Soil mapping unit code;

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SU_CODE74 Soil unit name;

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SU_CODE85 Soil unit name;

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SU_CODE90 Soil unit name; \nDRAINAGE(19.5);

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REF_DEPTH (soil reference depth);

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AWC_CLASS(19.5);

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AWC_CLASS (effective soil water content);

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PHASE1: Real (soil phase);

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PHASE2: String (soil phase);

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ROOTS: String (depth classification to the bottom of the soil where barriers exist);

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SWR: String (soil water content characteristics);

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ADD_PROP: Real (specific soil type in the soil unit that is relevant for agricultural use);

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T_TEXTURE (top soil texture);

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T_GRAVEL: Real (top layer gravel volume percentage);

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T_SAND: Real (top layer sand content);

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T_SILT: Real (top layer silt content);

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T_CLAY: Real (top clay content);

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T_USDA_TEX: Real (top layer USDA soil texture classification);

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T_REF_BULK: Real (top soil bulk weight);

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T_OC: Real (top layer organic carbon content);

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T_PH_H2O: Real (top layer pH);

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T_CEC_CLAY: Real (cation exchange capacity of the top clay layer soil);

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T_CEC_SOIL: Real (cation exchange capacity of the top soil layer);

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T_BS: Real (basic saturation of the top layer);

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T_TEB: Real (top layer exchangeable salt base);

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T_CACO3: Real (carbonate or lime content of the top layer);

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T_CASO4: Real (top layer sulfate content);

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T_ESP: Real (top exchangeable sodium salt);

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T_ECE: Real (top layer conductivity);

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S_GRAVEL: Real (bottom layer gravel volume percentage);

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S_SAND: Real (bottom sand content);

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S_SILT: Real (bottom silt content);

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S_CLAY: Real (subgrade clay content); \nS_USDA_TEX: Real (subgrade USDA soil texture classification).

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Translated with DeepL.com (free version)

", "ds_time_res": "", "ds_acq_place": "Gansu Province", "ds_space_res": "", "ds_projection": "", "ds_process_way": "

    The soil classification system mainly used is FAO-90.", "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": [ "世界土壤数据库", "甘肃省", "土壤质地", "土壤相位" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "甘肃省" ], "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" }