该数据集为中国西北地区陕西省2000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。主要数据源有： 1．2000年代土地利用数据2．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 3．辅助数据包括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_source": "
主要数据源有： 1．2000年代土地利用数据2．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 3．辅助数据包括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": "2000-01-01 00:00:00", "ds_acq_end_time": "2000-12-31 00:00:00", "ds_acq_place": "陕西省", "ds_acq_lon_east": 111.01666666666667, "ds_acq_lat_south": 31.5, "ds_acq_lon_west": 105.4, "ds_acq_lat_north": 39.7, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 22647799, "ds_files_count": 3, "ds_format": "SHP", "ds_space_res": null, "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "28d82c47-6f09-4c3b-8819-2094db9db50a.jpg", "ds_thumb_from": 2, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "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": "2021-01-12 19:53:16", "last_updated": "2023-06-19 11:16:14", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.nieer.2020.1491", "i18n": { "en": { "title": "1:700000 land cover data set of Shaanxi Province in 2000", "ds_format": "SHP", "ds_source": "The main data sources are as follows: 1. Land use data in 2000; 2. False color synthetic images of counties accurately corrected by Landsat in the same period of land use data; 3. Auxiliary data include 1:500000 grassland resource map (vector), 1:1000000 soil type map (vector), 1:1000000 vegetation type map (scan), etc.
", "ds_quality": "The data quality is good
", "ds_ref_way": "", "ds_abstract": "The data set is 1:700000 land cover data of Shaanxi Province in Northwest China in 2000. This data adopts a hierarchical land cover classification system. The first class of the classification system is consistent with the IPCC system, including 6 classes (woodland, grassland, wetland, cultivated land, artificial surface and others). The second class adopts 38 classes with global unified code generated by FAO LCCs. The main data sources are as follows: 1. Land use data in 2000; 2. False color synthetic images of counties accurately corrected by Landsat in the same period of land use data; 3. Auxiliary data include 1:500000 grassland resource map (vector), 1:1000000 soil type map (vector), 1:1000000 vegetation type map (scan), etc.
", "ds_time_res": "", "ds_acq_place": "Shaanxi Province", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Based on ecognition software platform, object-oriented classification method is adopted
", "ds_ref_instruction": "" } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC 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", "土地利用" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "西北地区", "中国西部地区", "陕西省" ], "ds_time_tags": [ 2000 ], "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": "生态" }