数据集为柴达木流域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。土壤属性表主要字段包括： SU_SYM90（FAO90土壤分类系统中土壤名称) SU_SYM85(FAO85分类) T_TEXTURE(顶层土壤质地) DRAINAGE(19.5)； ROOTS：String(到土壤底部存在障碍的深度分类)； SWR：String (土壤含水量特征)； ADD_PROP： Real (土壤单元中与农业用途有关的特定土壤类型)； T_GRAVEL：Real (碎石体积百分比)；T_SAND： Real (沙含量)； T_SILT： Real (淤泥含量)； T_CLAY：Real (粘土含量)； T_USDA_TEX： Real (USDA土壤质地分类)； T_REF_BULK： Real (土壤容重)； T_OC： Real (有机碳含量)； T_PH_H2O：Real (酸碱度) T_CEC_CLAY：Real (粘性层土壤的阳离子交换能力)； T_CEC_SOIL： Real (土壤的阳离子交换能力) T_BS：Real (基本饱和度)； T_TEB： Real (交换性盐基)； T_CACO3： Real (碳酸盐或石灰含量) T_CASO4： Real (硫酸盐含量)； T_ESP： Real (可交换钠盐)； T_ECE： Real (电导率)。其中以T_开头属性字段表示上层土壤属性（0-30cm），以S_开头属性字段表示下层土壤属性（30-100cm）(FAO 2009)。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。
", "ds_source": "数据集为柴达木流域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。
", "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": "2000-01-01 00:00:00", "ds_acq_end_time": null, "ds_acq_place": "柴达木河流域", "ds_acq_lon_east": 99.76666666666667, "ds_acq_lat_south": 34.0, "ds_acq_lon_west": 87.19972222222222, "ds_acq_lat_north": 40.0, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 635360, "ds_files_count": 3, "ds_format": "栅格", "ds_space_res": "1000.0m", "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "+proj=longlat +datum=WGS84 +no_defs ", "ds_thumbnail": "501d2298-3f0e-4bd1-9af0-b44075dd3bbb.png", "ds_thumb_from": 2, "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": "0931-4967287", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2021-01-06 11:39:09", "last_updated": "2023-08-25 10:22:24", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.Westdc.2020.402", "i18n": { "en": { "title": "Soil texture data set of hwsd in Qaidam River Basin", "ds_format": "Raster", "ds_source": "The data set is the hwsd soil texture data set of Qaidam Basin. The data comes from the harmonized world soil database (hwsd) built by FAO and IIASA in Vienna, which was released on March 26, 2009. The data resolution is 1km. The main soil classification system is fao-90.
", "ds_quality": "The dataset is controlled for quality through strict manual review
", "ds_ref_way": "", "ds_abstract": "The data set is the hwsd soil texture data set of Qaidam Basin. The data comes from the harmonized world soil database (hwsd) built by FAO and IIASA in Vienna, which was released on March 26, 2009. The data resolution is 1km. The main soil classification system is fao-90. The main fields of soil attribute table include: Su ﹣ sym90 (soil name in FAO 90 soil classification system) Su ﹣ sym85 (FAO 85 classification) t ﹣ text (top soil texture) drainage (19.5); roots: string (depth classification with obstacles to the bottom of soil); SWR: string (soil moisture content characteristics); add ﹣ prop: real (specific soil type related to agricultural use in soil unit); T ﹣ gravel: real (volume percentage of crushed stone); t ﹣ sand: real (sand content); t ﹣ salt: real (silt content); t ﹣ clay content; t ﹣ USDA ﹣ tex: real (texture classification of USDA soil); t ﹣ ref ﹣ bulk: real (soil bulk weight); t ﹣ OC: real (organic carbon content); t ﹣ pH ﹣ H2O: real (PH) t ﹣ CEC ﹣ clay: real (cation exchange capacity of cohesive soil); T ﹐ CEC ﹐ soil: real (cation exchange capacity of soil); t ﹐ BS: real (basic saturation); t ﹐ TEB: real (exchangeable base); t ﹐ CaCO3: real (carbonate or lime content); t ﹐ CaSO4: real (sulfate content); t ﹐ ESP: real (exchangeable sodium salt); t ﹐ ECE: real (electrical conductivity). The attribute field beginning with t_represents the upper soil attribute (0-30cm), and the attribute field beginning with s_represents the lower soil attribute (30-100cm) (FAO 2009). The data can provide input parameters for the earth system modelers, and the agricultural perspective can be used to study the ecological agriculture zoning, food security and climate change.
", "ds_time_res": "", "ds_acq_place": "Chaidamu River Basin", "ds_space_res": "1000.0m", "ds_projection": "+proj=longlat +datum=WGS84 +no_defs ", "ds_process_way": "The main soil classification system used 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 invited to use the data\r\nStudents' research results (including published papers, treatises, data products and unpublished research reports, data products, etc.) shall be clearly indicated with data\r\nSource and data author. 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, "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": [ "HWSD", "碎石体积", "土壤质地", "有机含碳量", "土壤", "土壤含水量" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "柴达木河流域" ], "ds_time_tags": [ 2000 ], "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": "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": "生态" }