本数据集包含1990年塔吉克斯坦土地利用数据、2000年塔吉克斯坦土地利用数据和2010年塔吉克斯坦土地利用数据；此数据反映了1990-2010塔吉克斯坦范围内的土地利用情况，投影方式采用GCS_WGS1984。数据源采用1989-1991年度、1999-2002年、2009-2012年前后的TM遥感数据和Google earth数据，利用ARCGIS、ERDAS软件工具，进行预处理和半自动人工解译，实地调查和高精度数据验证后获得，土地利用分类依据国土资源部立项研究制定《土地利用现状分类》国家标准，采用两级分类系统30个类型对数据进行分类。。
", "ds_source": "1989-1991年度TM遥感数据；\n1999-2002年度TM遥感数据；\n2009-2012年度TM遥感数据\nGoogle earth数据\n
", "ds_process_way": "依据国土资源部立项研究制定《土地利用现状分类》国家标准，使用ARCGIS、ERDAS软件工具，选取对应年代的TM数据，数据预处理，对遥感影像进行了土地利用/覆被分类和信息人工解译，并利用野外考察资料对提取的结果进行了实地验证。。
", "ds_quality": "整个作业流程均遵守国家相关标准，数字化误差控制在2个像素以内，保证了矢量数据能真实反映地物形态和属性信息，数据精确度高达99%。
", "ds_acq_start_time": "2010-11-05 00:00:00", "ds_acq_end_time": "2010-11-05 00:00:00", "ds_acq_place": "塔吉克斯坦", "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": "login-access", "ds_total_size": 337347098, "ds_files_count": 1, "ds_format": "shp", "ds_space_res": "30", "ds_time_res": "年", "ds_coordinate": "WGS84", "ds_projection": "WGS84", "ds_thumbnail": "df3d119e-b015-4419-ad17-8f8ad8c59e16.jpg", "ds_thumb_from": 2, "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" ], "quality_level": 1, "publish_time": "2025-01-15 10:55:25", "first_publish_time": null, "last_updated": "2025-03-28 18:00:28", "protected": false, "protected_to": null, "lang": "zh", "cstr": "33110.11.ariddc.00260", "license": null, "extra": null, "files_shape": [ { "name": "1990-2000-2010年塔吉克斯坦土地利用数据.rar", "size": 337347098, "is_dir": false } ], "features": null, "data_level": 0, "i18n": { "en": { "title": "Tajikistan 1: 100,000 land use data in 1990, 2000 and 2010", "ds_abstract": "This dataset contains Tajikistan land use data in 1990, Tajikistan land use data in 2000 and Tajikistan land use data in 2010; this data reflects the land use situation in Tajikistan from 1990 to 2010, and the projection method uses GCS_WGS1984. The data source uses TM remote sensing data and Google earth data from 1989-1991, 1999-2002, and 2009-2012, and uses ARCGIS and ERDAS software tools for pretreatment and semi-automatic manual interpretation. It is obtained after field investigation and high-precision data verification. The land use classification is based on the national standard of \"Land Use Status Classification\" established by the Ministry of Land and Resources, and the data is classified by 30 types of a two-level classification system.
", "ds_source": "TM remote sensing data from 1989 to 1991;\n1999-2002 Annual TM remote sensing data;\n2009-2012 Annual TM remote sensing data\nGoogle earth data\n
", "ds_process_way": "According to the national standard of \"Classification of Land Use Status\" established by the Ministry of Land and Resources, using ARCGIS and ERDAS software tools, TM data of the corresponding age was selected, the data was preprocessed, and the remote sensing images were subjected to land use/cover classification and manual information interpretation., and the extracted results were verified on the spot using field investigation data.
", "ds_quality": "The entire operation process complies with relevant national standards, and the digital error is controlled within 2 pixels, ensuring that vector data can truly reflect the shape and attribute information of ground features, and the data accuracy is as high as 99%.
", "ds_acq_place": "Tajikistan", "ds_format": "shp", "ds_projection": "WGS84", "ds_space_res": "30", "ds_time_res": "years" } }, "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": [ "土地利用", "土地覆被" ], "ds_subject_tags": [ "地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "塔吉克斯坦" ], "ds_time_tags": [ 1990, 2000, 2010 ], "ds_contributors": [ "陈曦", "李宏" ], "ds_meta_authors": [ "李宏" ], "ds_managers": [ "李锦" ], "category": "土地利用/土地覆被" }