本数据为2000年青海湖流域道路分布数据集，地点包括青海境内的天峻县、刚察县、共和县、海晏县四县的国道、乡村道路、县乡道路、大车路、小路、省道等指标，主要包括青海湖流域内主要道路的空间分布及属性数据，属性字段：code（道路编码）、Name(道路分级）。
", "ds_source": "青海湖流域道路分布
", "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": 731085, "ds_files_count": 3, "ds_format": "矢量", "ds_space_res": "2500.0m", "ds_time_res": "年", "ds_coordinate": "WGS84", "ds_projection": "+proj=longlat +datum=WGS84 +no_defs", "ds_thumbnail": "1bf2a685-a3a8-4595-97f6-ebf5eb29990e.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 17:42:33", "last_updated": "2023-08-23 16:46:32", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.Westdc.2020.317", "i18n": { "en": { "title": "Primary Road Network Dataset of Qinghai Lake River Basin", "ds_format": "Vector", "ds_source": "Distribution of roads in Qinghai Lake Basin
", "ds_quality": "Data set quality control through strict manual audit
", "ds_ref_way": "", "ds_abstract": "This data is the data set of road distribution in Qinghai Lake Basin in 2000, and the locations include roads in Qinghai Province Tianjun County, Gangcha County, Gonghe County and Haiyan County, including National Road, rural road, county road, dache Road, small road, provincial road and other indicators, mainly includes the spatial distribution and attribute data of main roads in Qinghai Lake Basin, attribute fields: code (road code), Name (road classification).
", "ds_time_res": "年", "ds_acq_place": "Qinghai Lake Basin", "ds_space_res": "2500.0m", "ds_projection": "+proj=longlat +datum=WGS84 +no_defs", "ds_process_way": "Digital Vectorization
", "ds_ref_instruction": "In order to protect the rights and interests of the platform's scientific and technological resources, expand the services of the platform center, and enhance the application potential of scientific and technological resources, resource users are requested to mark and quote the research results (including published papers, treatises, data products, unpublished research reports, data products, etc.) generated by the use of resources in the following manner." } }, "submit_center_id": "ncdc", "data_level": 0, "recommendation_value": 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": [ "基础数据", "道路", "国道，乡村道路，县乡道路，大车路，小路，省道" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "青海湖流域", "，天峻县，刚察县，共和县，海晏县" ], "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" }