数据为青海湖流域土地覆盖数据集，来源于2000年\"中国1:10万土地利用数据集\",以卫星遥感为手段，在三年内基于Landsat MSS，TM和ETM遥感数据构建的。本数据采用一个分层的土地覆盖分类系统，将全国分为6个一级类（耕地、林地、草地、水域、城乡、工矿、居民用地和未利用土地），31个二级类。属性字段包括：Area（面积）、Perimeter(周长）、 Code（土地编码）、Name(土地类型）。
", "ds_source": "数据为青海湖流域土地覆盖数据集，来源于2000年\"中国1:10万土地利用数据集\",以卫星遥感为手段，在三年内基于Landsat MSS，TM和ETM遥感数据构建的。
", "ds_process_way": "数字矢量化
", "ds_quality": "数据集通过严格的人工审核控制质量
", "ds_acq_start_time": "2000-01-01 00:00:00", "ds_acq_end_time": "2000-12-31 00:00:00", "ds_acq_place": "青海湖流域", "ds_acq_lon_east": 101.44972222222222, "ds_acq_lat_south": 36.166666666666664, "ds_acq_lon_west": 97.51666666666667, "ds_acq_lat_north": 38.416666666666664, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 12028420, "ds_files_count": 3, "ds_format": "矢量", "ds_space_res": "1000.0m", "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "+proj=longlat +datum=WGS84 +no_defs", "ds_thumbnail": "9b935db8-da02-4612-ae3b-87cae75842d9.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "None", "ds_from_station": null, "organization_id": "9c4867b1-5cb1-4de0-abeb-df42547bf41e", "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": "2021-01-04 18:27:53", "last_updated": "2023-08-23 16:46:33", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.Westdc.2020.313", "i18n": { "en": { "title": "Landcover/Landuse Dataset of the QinghaiLake River Basin in 2000", "ds_format": "Vector", "ds_source": "The data is the landcover data set of Qinghai Lake Basin, which comes from \"China's 1:100000 landuse data set\" in 2000. It is constructed based on LANDSAT MSS, TM and ETM Remote Sensing Data in three years by means of satellite remote sensing.
", "ds_quality": "Data set quality control through strict manual audit
", "ds_ref_way": "", "ds_abstract": "The data is the landcover data set of Qinghai Lake Basin, which comes from \"China's 1:100000 landuse data set\" in 2000. It is constructed based on LANDSAT MSS, TM and ETM Remote Sensing Data in three years by means of satellite remote sensing. Using a hierarchical land cover classification system, this data divides the whole country into six first-class categories (cultivated land, forest land, grassland, water area, urban and rural areas, industrial and mining land, residential land and unused land), and 31 second-class categories. The attribute fields are Area, Perimeter, Code, and Name.
", "ds_time_res": "", "ds_acq_place": "Qinghai Lake Basin", "ds_space_res": "1000.0m", "ds_projection": "+proj=longlat +datum=WGS84 +no_defs", "ds_process_way": "Digital Vectorization
", "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", "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": [ "土地覆盖", "土地利用" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "青海湖流域" ], "ds_time_tags": [ 2000 ], "ds_contributors": [ { "true_name": "吴立宗", "email": "wulizong@pric.org.cn", "work_for": "国家极地科学数据中心", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "吴立宗", "email": "wulizong@pric.org.cn", "work_for": "国家极地科学数据中心", "country": "中国" } ], "ds_managers": [ { "true_name": "康建芳", "email": "kangjf@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" }