本数据包括林地、草地、湿地、耕地、人工表面、其他等6个一级类型和38个二级类型，以1:10万新疆地形图、1:100万新疆土地利用数据、1:100万新疆草地资源数据、1:100万新疆林地资源数据、新疆地区30米分辨率的2005年度TM数结合2000、2010年两期新疆土地覆被数据可反映新疆近10年来的土地覆被变化情况，为新疆土地利用研究和国家宏观决策提供科学数据支持。
", "ds_source": "2005年新疆土地覆被数据由中国科学院新疆生态与地理研究所独立完成，以1:100万新疆土地利用数据和遥感分类数据的基础上，采用全数字化的方式完成，主要数据源：1. 1:100万新疆土地利用数据；2.30米分辨率的2005年度TM数据； 3.30米分辨率的DEM数据； 4.辅助数据1:100万新疆草地资源数据（矢量），1:100万新疆林地资源数据（矢量）；上述数据均来自历年科研成果的积累。
", "ds_process_way": "在ERDAS、eCognition和ArcGIS等环境下，通过专家分析和遥感自动分类相结合的方法，配合野外实地考察成果进行解译精度验证，按照内容和区域，采用专题制图的方式完成的。主要环节： 基于1:100万新疆土地利用数据作为基本底图，作为制图的框架数据和控制基础； 基于2005年前后1-2年时间范围内的TM影像数据，通过叠加空间格网精度不低于30米的DEM数据，生成正射影像图，利用遥感影像分析软件Ecognition对正射图进行遥感解译，实现不同土地覆被类型的属性划分和制图； 在上述3种数据的基础上，结合人工目视判读，野外实地考察成果，进行全数字成图。
", "ds_quality": "样区尺度的土地覆盖的一级类别总精度>95%，二级类别总精度85%，森林、灌木的二级类别精度分别达到85%，其它单类别的最低精度>65%；每个气候分区的二级类别总精度达到85%；变化检测二级类别总精度大于72%，单类别的最低精度>42%；
", "ds_acq_start_time": "2005-01-01 00:00:00", "ds_acq_end_time": "2005-12-31 00:00:00", "ds_acq_place": "新疆维吾尔自治区", "ds_acq_lon_east": 108.0, "ds_acq_lat_south": 27.0, "ds_acq_lon_west": 73.0, "ds_acq_lat_north": 49.0, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 290971911, "ds_files_count": 4, "ds_format": "矢量", "ds_space_res": null, "ds_time_res": "年", "ds_coordinate": "WGS84", "ds_projection": "Albers椭球体正轴等面积双标准纬线割圆锥投影", "ds_thumbnail": "390a5b85-4719-4e18-8807-864d55e1289c.jpg", "ds_thumb_from": 0, "ds_ref_way": "吴世新，2005年新疆1:25万土地覆被数据，中科院新疆生态与地理研究所，2011", "paper_ref_way": "", "ds_ref_instruction": null, "ds_from_station": null, "organization_id": "52b7b79b-860c-49a5-9083-9a70cf8bed5a", "ds_serv_man": "李锦", "ds_serv_phone": "09917827369", "ds_serv_mail": "lijin@ms.xjb.ac.cn", "doi_value": "", "subject_codes": null, "quality_level": 3, "publish_time": "2021-01-05 16:24:04", "last_updated": "2023-08-23 17:02:03", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.nieer.2020.1312", "i18n": { "en": { "title": "Data of 1:250000 land cover in Xinjiang in 2005", "ds_format": "", "ds_source": "The land cover data of Xinjiang in 2005 was independently completed by Xinjiang Institute of ecology and geography, Chinese Academy of Sciences. Based on the 1:1 million land use data and remote sensing classification data, it was completed in a fully digital way. The main data sources are: 1.1:1 million land use data of Xinjiang; 2.30 m resolution TM data of 2005; 3.30 m resolution DEM data; 3.30 m resolution DEM data; 4. Auxiliary data 1:1 million Xinjiang grassland resources data (vector), 1:1 million Xinjiang forest resources data (vector); the above data are from the accumulation of scientific research achievements over the years.
", "ds_quality": "The total precision of the first class, the second class, the forest and the shrub, the other single class, the second class, the climate zone, the change detection, the second class is 95%, 85%, 65%, 85%, 65%, 85%, 72% and 42%, respectively
", "ds_ref_way": "Wu Shixin, 1:250000 land cover data of Xinjiang in 2005, Xinjiang Institute of ecology and geography, Chinese Academy of Sciences, 2011
", "ds_abstract": "This data includes six primary types and 38 secondary types, including woodland, grassland, wetland, cultivated land, artificial surface and others. It can be obtained by combining 1:100000 topographic map of Xinjiang, 1:1 million land use data of Xinjiang, 1:1 million grassland resource data of Xinjiang, 1:1 million woodland resource data of Xinjiang, TM data of Xinjiang in 2005 with 30 meter resolution and land cover data of Xinjiang in 2000 and 2010 It reflects the land cover change in Xinjiang in recent 10 years and provides scientific data support for land use research and national macro decision-making in Xinjiang.
", "ds_time_res": "年", "ds_acq_place": "Xinjiang Uygur Autonomous Region", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Under the environment of ERDAS, ecognition and ArcGIS, through the combination of expert analysis and remote sensing automatic classification, and with the results of field investigation, the interpretation accuracy is verified. According to the content and area, the method of thematic mapping is adopted. Main links: Based on 1:1 million Xinjiang land use data as the basic base map, as the frame data and control basis of mapping; Based on the TM image data in 1-2 years before and after 2005, the orthophoto map is generated by superposition of DEM data whose spatial grid accuracy is not less than 30 meters. The orthophoto map is interpreted by remote sensing image analysis software ecognition to realize the attribute division and mapping of different land cover types; On the basis of the above three kinds of data, combined with the results of artificial visual interpretation and field investigation, full digital mapping is carried out.
", "ds_ref_instruction": " \nIn 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, "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": [ "土地覆被", "LUCC", "土地利用" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "新疆维吾尔自治区" ], "ds_time_tags": [ 2005 ], "ds_contributors": [ { "true_name": "吴世新", "email": "wsx@ms.xjb.ac.cn", "work_for": "中科院新疆生态与地理研究所", "country": "" } ], "ds_meta_authors": [ { "true_name": "李锦", "email": "lijin@ms.xjb.ac.cn", "work_for": "新疆生态与地理研究所", "country": "中国" } ], "ds_managers": [ { "true_name": "李锦", "email": "lijin@ms.xjb.ac.cn", "work_for": "新疆生态与地理研究所", "country": "中国" }, { "true_name": "吴世新", "email": "wsx@ms.xjb.ac.cn", "work_for": "中科院新疆生态与地理研究所", "country": "" } ], "category": "基础地理" }