本数据集为张掖市土地利用数据，采用一个分层的土地覆盖分类系统，将张掖市土地利用类型划分为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），25个二级分类。范围包括山丹、民乐、临泽、高台、肃南裕固族自治县和甘州区五县一区数据类型为矢量多边形，以Shape格式存储。
", "ds_source": "为《张掖市耕地利用系数的确定及土地利用变化研究》项目成果之一。
\n", "ds_process_way": "基于Landsat TM和ETM遥感数据建立的张掖市土地利用数据库。
", "ds_quality": "分类标准采用中国科学院自1986年以来使用的土地利用分类标准。。
", "ds_acq_start_time": "2007-01-01 00:00:00", "ds_acq_end_time": "2007-12-31 00:00:00", "ds_acq_place": "黑河流域张掖市", "ds_acq_lon_east": 104.19972222222222, "ds_acq_lat_south": 37.7, "ds_acq_lon_west": 96.01666666666667, "ds_acq_lat_north": 43.25, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 137340812, "ds_files_count": 3, "ds_format": "矢量", "ds_space_res": null, "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "+proj=longlat +datum=WGS84 +no_defs", "ds_thumbnail": "692b5169-50be-41d8-991b-afb1fd8454fa.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "9c4867b1-5cb1-4de0-abeb-df42547bf41e", "ds_serv_man": "黑河计划数据管理中心", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2021-08-16 16:25:07", "last_updated": "2023-09-04 12:55:00", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.Westdc.2020.387", "i18n": { "en": { "title": "Zhangye land use / land cover data set (2007)", "ds_format": "Shapefile", "ds_source": "It is one of the achievements of the project \"determination of cultivated land use coefficient and Research on land use change in Zhangye City\"\n
", "ds_quality": "The classification standard adopts the land use classification standard used by the Chinese Academy of Sciences since 1986", "ds_ref_way": "", "ds_abstract": "
This data set is the land use data of Zhangye City. Using a hierarchical land cover classification system, the land use types of Zhangye City are divided into 6 primary categories (cultivated land, forest land, grassland, water area, urban and rural industrial and mining residential land and unused land) and 25 secondary categories. The scope includes Shandan, Minle, Linze, Gaotai, Sunan Yugur Autonomous County and Ganzhou district. The data type is vector polygon and stored in shape format
", "ds_time_res": "", "ds_acq_place": "Zhangye City in Heihe River Basin", "ds_space_res": "", "ds_projection": "+proj=longlat +datum=WGS84 +no_defs", "ds_process_way": "Land use database of Zhangye City Based on Landsat TM and ETM Remote sensing data", "ds_ref_instruction": "" } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0", "ds_topic_tags": [ "土地覆盖", "土地利用", "土地分类" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "黑河流域", "张掖市" ], "ds_time_tags": [ 2007 ], "ds_contributors": [ { "true_name": "胡晓利", "email": "huxiaoli@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "" }, { "true_name": "王建华 ", "email": "jhwang@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": "李新", "email": "lixin@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": "胡晓利", "email": "huxiaoli@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "" } ], "ds_managers": [ { "true_name": "胡晓利", "email": "huxiaoli@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "" } ], "category": "基础地理" }