数据集为青海湖流域HWSD土壤质地数据集，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,HWSD)， 该数据库于2009年3月26日发布了1.1版本。数据分辨率为1km。采用的土壤分类系统主要为FAO-90。
\n\n土壤属性表主要字段包括：
\n\nSU_SYM90（FAO90土壤分类系统中土壤名称)
\n\nSU_SYM85(FAO85分类)
\n\nT_TEXTURE(顶层土壤质地)
\n\nDRAINAGE(19.5)；
\n\nROOTS：String(到土壤底部存在障碍的深度分类)；
\n\nSWR：String (土壤含水量特征)；
\n\nADD_PROP： Real (土壤单元中与农业用途有关的特定土壤类型)；
\n\nT_GRAVEL：Real (碎石体积百分比)；T_SAND： Real (沙含量)；
\n\nT_SILT： Real (淤泥含量)；
\n\n<>T_CLAY：Real (粘土含量)；
\n\nT_USDA_TEX： Real (USDA土壤质地分类)；
\n\nT_REF_BULK： Real (土壤容重)；
\n\nT_OC： Real (有机碳含量)；
\n\nT_PH_H2O：Real (酸碱度)
\n\nT_CEC_CLAY：Real (粘性层土壤的阳离子交换能力)；
\n\nT_CEC_SOIL： Real (土壤的阳离子交换能力)
\n\nT_BS：Real (基本饱和度)；
\n\nT_TEB： Real (交换性盐基)；
\n\nT_CACO3： Real (碳酸盐或石灰含量)
\n\nT_CASO4： Real (硫酸盐含量)；
\n\nT_ESP： Real (可交换钠盐)；
\n\nT_ECE： Real (电导率)。
\n\n该数据可为地球系统建模者提供模型输入参数，农业角度可用来研究生态农业分区，粮食安全和气候变化等。
\n\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,HWSD)， 该数据库于2009年3月26日发布了1.1版本。数据分辨率为1km。
", "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": "2009-01-01 00:00:00", "ds_acq_end_time": null, "ds_acq_place": "青海湖流域", "ds_acq_lon_east": 101.44972222222222, "ds_acq_lat_south": 36.166666666666664, "ds_acq_lon_west": 97.51666666666667, "ds_acq_lat_north": 38.416666666666664, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 626456, "ds_files_count": 3, "ds_format": "栅格", "ds_space_res": null, "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "+proj=longlat +datum=WGS84 +no_defs", "ds_thumbnail": "ffa73617-d7d2-4976-9454-c57cadf71e84.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "None", "ds_from_station": null, "organization_id": "9c4867b1-5cb1-4de0-abeb-df42547bf41e", "ds_serv_man": "李红星 ", "ds_serv_phone": "0931-4967592", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2021-01-07 09:36:38", "last_updated": "2023-06-15 10:17:12", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.Westdc.2020.314", "i18n": { "en": { "title": "HWSD Soil Texture Dataset in Qinghai Lake Basin", "ds_format": "Raster", "ds_source": "The data comes from the world soil database (HWSD) built by FAO and IIASA, which was released on March 26, 2009. The data resolution is 1km.
", "ds_quality": "Data set quality control through strict manual audit
", "ds_ref_way": "", "ds_abstract": "The data set is the HWSD soil texture data set of the Qinghai Lake basin, which is derived from the Harmonized World Soil Database (HWSD) built by the Food and Agriculture Organization of the United Nations (FAO) and the Vienna International Institute of Applied Systems Analysis(IIASA). The database released version 1.1 on March 26, 2009. The data resolution is 1km. The main soil classification system used is FAO-90
\nThe main fields of the soil attribute table include:
\nSU_ SYM90 (soil name in the FAO 90 soil classification system)
\nSU_SYM85 (FAO85 classification)
\nT_TEXTURE (Top soil texture)
\nDRAINAGE (19.5)
\nROOTS: String (depth classification of obstacles to the bottom of the soil)
\nSWR: String (soil moisture content characteristics)
\nADD_PROP: Real (specific Soil type in the soil unit related to agricultural use)
\nT_GRAVEL: Real (volume percentage of crushed stone); T_SAND: Real (sand content)
\nT_SILT: Real (silt content)
\nT_CLAY: Real (clay content)
\nT_USDA_TEX: Real (USDA Soil Texture Classification)
\nT_REF_BULK: Real (soil bulk density)
\nT_OC: Real (organic carbon content)
\nT_PH_H2O: Real (pH)
\nT_CEC_CLAY: Real (cation exchange capacity of cohesive layer soil)
\nT_CEC_SOIL: Real (Cation exchange capacity of soil)
\nT_BS: Real (basic saturation)
\nT_TEB: Real (exchangeable base)
\nT_CACO3: Real (carbonate or lime content)
\nT_CASO4: Real (sulfate content)
\nT_ESP: Real (exchangeable sodium salt)
\nT_ECE: Real (conductivity)
\nThis data can provide model input parameters for Earth system modelers, and the agricultural perspective can be used to study ecological agricultural zoning, food security, and climate change.
", "ds_time_res": "", "ds_acq_place": "Qinghai Lake Basin", "ds_space_res": "", "ds_projection": "+proj=longlat +datum=WGS84 +no_defs", "ds_process_way": "The main soil classification system is FAO-90.
", "ds_ref_instruction": "In order to respect intellectual property rights, protect the rights and interests of data authors, expand the services of data centers, and evaluate the application potential of data, data users are requested to clearly indicate the data source and data authors in the research results (including published papers, works, data products and unpublished research reports, data products, etc.) produced by using data. For data reprinted (secondary or multiple releases), the author must also indicate the source of the original data." } }, "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, "ds_topic_tags": [ "碎石体积", "HWSD", "土壤质地", "土壤", "土壤含水量" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "青海湖流域", "，天峻县，刚察县，共和县，海晏县" ], "ds_time_tags": [ 2009 ], "ds_contributors": [ { "true_name": "吴立宗", "email": "wulizong@pric.org.cn", "work_for": "国家极地科学数据中心", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "吴立宗", "email": "wulizong@pric.org.cn", "work_for": "国家极地科学数据中心", "country": "中国" } ], "ds_managers": [ { "true_name": "康建芳", "email": "kangjf@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": "生态" }