本数据来源于HWSD世界土壤数据库，覆盖中亚五国和新疆范围内的土壤属性分类数据集，属性包括砂土、壤土、粘土和PH值等。投影坐标采用GCS_WGS_84投影坐标，空间分辨率1000米。
", "ds_source": "数据来自国际应用系统分析研究所（IIASA）及联合国粮农组织（FAO）和京都协议对土壤碳测量和联合国粮农组织/国际全球农业生态评价研究(GAEZ v3.0)共同倡导下建立了新一代世界土壤数据库(Harmonized World Soil Database version 1.2 ) (HWSD V1.2).
", "ds_process_way": "核心土壤制度单元唯一验证标识符：\nMU_GLOBAL-HWSD数据库土壤制图单元标示符，连接了GIS图层。MU_SOURCE1 和 MU_SOURCE2- 源数据库制图单元标识符SEQ-土壤制图单元组成中的土壤单元序列；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) FAO-85(SU_SYM85)。
", "ds_quality": "加工后数据精度 1 km
", "ds_acq_start_time": null, "ds_acq_end_time": null, "ds_acq_place": "", "ds_acq_lon_east": null, "ds_acq_lat_south": null, "ds_acq_lon_west": null, "ds_acq_lat_north": null, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 33683048, "ds_files_count": 2, "ds_format": ".mdb表格，.tif格式", "ds_space_res": "1000", "ds_time_res": "无", "ds_coordinate": "WGS84", "ds_projection": "WGS84", "ds_thumbnail": "5a079543-8fb0-4a6f-aee1-ea3f3ba56827.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "a5877b42-96ea-4f13-af7e-246f355413d6", "doi_value": "", "subject_codes": [ "170.45", "210.50" ], "quality_level": 1, "publish_time": "2025-05-15 11:40:33", "first_publish_time": null, "last_updated": "2025-05-15 11:40:33", "protected": false, "protected_to": null, "lang": "zh", "cstr": "33110.11.ariddc.00626", "license": null, "extra": null, "files_shape": [ { "name": "HWSD.mdb", "size": 32739328, "is_dir": false }, { "name": "中亚土壤属性数据（砂土、壤土、粘土、PH值等）.rar", "size": 943720, "is_dir": false } ], "features": null, "data_level": 0, "i18n": { "en": { "title": "Soil attribute data from five Central Asian countries and Xinjiang in 2009", "ds_abstract": "This data comes from the HWSD World Soil Database and covers soil attribute classification data sets in five Central Asian countries and Xinjiang. Attributes include sand, loam, clay and PH values. The projection coordinates use GCS_WGS_84 projection coordinates, with a spatial resolution of 1000 meters.
", "ds_source": "The data comes from the International Institute for Applied Systems Analysis (IIASA) and the Food and Agriculture Organization of the United Nations (FAO) and the Kyoto Protocol on soil carbon measurement and the FAO/International Global Agroecological Assessment Study (GAEZ v3.0) to establish a new generation of World Soil Database (Harmonized World Soil Database version 1.2 ) (HWSD V1.2).
", "ds_process_way": "Unique verification identifier for core soil system unit:\nMU_GLOBAL-HWSD database soil mapping unit identifier, connected to GIS layers. MU_SOURCE1 and MU_SOURCE2-Source database mapping unit identifier SEQ-sequence of soil units in the composition of soil mapping units; soil classification systems use the FAO-7 classification system or the FAO-90 classification system (SU_SYM74 resp. SU_SYM90) FAO-85(SU_SYM85)。
", "ds_quality": "Post-processing data accuracy 1 km
", "ds_format": ".mdb table,.tif format", "ds_projection": "WGS84", "ds_space_res": "1000", "ds_time_res": "no" } }, "license_type": null, "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": [ "土壤", "土壤属性" ], "ds_subject_tags": [ "土壤学", "地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "塔吉克斯坦", "乌兹别克斯坦", "吉尔吉斯斯坦", "中国新疆", "哈萨克斯坦", "土库曼斯坦" ], "ds_time_tags": [ 2009 ], "ds_contributors": [ "张弛", "刘铁" ], "ds_meta_authors": [ "张弛" ], "ds_managers": [ "刘铁" ], "category": "土壤" }