该数据集为中国西北地区宁夏回族自治区2005年的1:70万土地覆被数据。本数据采用一个分层的土地覆被分类系统，分类系统的一级类与IPCC系统保持一致共6类（林地、草地、湿地、耕地、人工表面、其他），二级类采用了由FAO的LCCS生成的具有全球统一代码的38个类型。
", "ds_source": "1、主要数据源有： 2005年代土地利用数据、与土地利用数据同期陆地卫星精纠正分县假彩色合成影像。
\n2、辅助数据：1:50万草地资源图（矢量）、1:100万土壤类型图（矢量）、1:100万植被类型图（扫描）等 。
", "ds_process_way": "基于eCognition软件平台，采用面向对象分类方法。
", "ds_quality": "数据质量良好。
", "ds_acq_start_time": "2005-01-01 00:00:00", "ds_acq_end_time": "2005-12-31 00:00:00", "ds_acq_place": "宁夏回族自治区", "ds_acq_lon_east": 107.5, "ds_acq_lat_south": 35.0, "ds_acq_lon_west": 104.0, "ds_acq_lat_north": 39.5, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 4585946, "ds_files_count": 3, "ds_format": "shp", "ds_space_res": null, "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "ea66768e-2658-4828-a89d-372b25b7cfbf.jpg", "ds_thumb_from": 2, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "None", "ds_from_station": null, "organization_id": "52b7b79b-860c-49a5-9083-9a70cf8bed5a", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2020-12-18 15:08:03", "last_updated": "2025-04-24 16:49:59", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.nieer.2020.1437", "license": null, "i18n": { "en": { "title": "1:700,000 Land Cover Dataset of Ningxia Hui Autonomous Region (2005)", "ds_format": "shp", "ds_source": "1, the main data sources are: 2005s land use data, and land use data with the same period of Landsat fine correction sub-county false color composite image.
\n2, auxiliary data: 1:500,000 grass resources map (vector), 1:1 million soil type map (vector), 1:1 million vegetation type map (scanning), etc.
", "ds_quality": "The dataset exhibits high-quality assurance.
", "ds_ref_way": "", "ds_abstract": "This dataset represents the 1:700,000 land cover data for Ningxia Hui Autonomous Region in Northwest China for 2005. It employs a hierarchical land cover classification system: Primary classes (6 categories aligned with IPCC standards): Forest, Grassland, Wetland, Cropland, Artificial Surfaces, Others.Secondary classes (38 types with globally harmonized codes generated using FAO's Land Cover Classification System (LCCS)).
", "ds_time_res": "", "ds_acq_place": "Ningxia Hui Autonomous Region", "ds_space_res": "", "ds_projection": "", "ds_process_way": "The classification was performed using object-oriented classification methods on the eCognition software platform.
", "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, "license_type": "CC BY 4.0", "ds_topic_tags": [ "土地利用", "土地覆被", "基础地理" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "中国西部地区", "西北地区", "宁夏", "宁夏回族自治区" ], "ds_time_tags": [ 2005 ], "ds_contributors": [ { "true_name": "颜长珍", "email": "yancz@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" }, { "true_name": "谢家丽", "email": "xiejl@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "谢家丽", "email": "xiejl@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "ds_managers": [ { "true_name": "颜长珍", "email": "yancz@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": "基础地理" }