该数据集为中国西北地区内蒙古阿拉善盟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": "
基于遥感影像
", "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": "内蒙古阿拉善盟", "ds_acq_lon_east": 106.86666666666666, "ds_acq_lat_south": 37.36638888888889, "ds_acq_lon_west": 97.16638888888889, "ds_acq_lat_north": 42.75, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 5243230, "ds_files_count": 3, "ds_format": "SHP", "ds_space_res": null, "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "70eb7eac-b405-45fe-911e-a892e47827e9.jpg", "ds_thumb_from": 2, "ds_ref_way": "颜长珍, 谢家丽，2000年内蒙古阿拉善盟1:70万土地覆被数据集，国家冰川冻土沙漠科学数据中心(www.ncdc.ac.cn)，2019，doi：10.12072/ncdc.NIEER.db0081.2020", "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": null, "quality_level": 3, "publish_time": "2021-01-12 19:52:35", "last_updated": "2021-01-12 19:52:35", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.nieer.2020.1483", "i18n": { "en": { "title": "1:700000 land cover data set in Alxa League of Inner Mongolia in 2000", "ds_format": "", "ds_source": "Based on remote sensing image
", "ds_quality": "The data quality is good
", "ds_ref_way": "Yan Changzhen, Xie Jiali, 2000 Alxa League, Inner Mongolia 1:700000 land cover data set, national glacial frozen soil desert scientific data center（ www.ncdc.ac.cn )，2019，doi：10.12072/ ncdc.NIEER.db0081 .2020", "ds_abstract": "The data set is 1:700000 land cover data of Alashan League 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.
", "ds_time_res": "", "ds_acq_place": "Alashan League, Inner Mongolia", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Based on eCognition software platform, Using object-oriented classification methods.", "ds_ref_instruction": " \nNone" } }, "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": [ "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" }