{"id":"8add8d6c-939d-4da2-8d3d-4cc16551d3d0","title":"三江源草地类型（1990s）","title_en":"Grassland types of Sanjiangyuan (1990s)","serial":"","user_limit":"为尊重知识产权、保障数据作者的权益、扩展数据中心的服务、评估数据的应用潜力，请数据使用者在使用数据所产生的研究成果中（包括公开发表的论文、论著、数据产品和未公开发表的研究报告、数据产品等成果），明确注明数据来源和数据作者。对于转载（二次或多次发布）的数据，作者还须注明原始数据来源。","instructions":"文件命名：grasslands_SJY\n数据读取方式：GeoTIFF","description":"20世纪70年代末，我国采用植物-生境分类方法，在全国范围内开展统一的草地资源调查工作，历时近10年，1988年才完成了全国草地资源调查工作。到20世纪90年代初期，辅以航、卫片校核，汇编完成县级1:50000或1:100000草地类型图，并缩编成1:1000000全国草地资源图。该数据集为三江源1990年代1km×1km栅格的草地类型空间分布数据。\nb. 数据的时间范围：\n1990年代\nc. 数据的空间范围、投影方式：\n空间范围：三江源地区\n投影参数：\nProjectedCoordinateSystem: WGS_1984_Albers\nProjection:\tAlbers\nfalse_easting:\t0.00000000\nfalse_northing:\t0.00000000\ncentral_meridian:\t105.00000000\nstandard_parallel_1:\t25.00000000\nstandard_parallel_2:\t47.00000000\nlatitude_of_origin:\t0.00000000\nLinear Unit: \tMeter\n\nGeographic Coordinate System:\tGCS_WGS_1984\nDatum: \tD_WGS_1984\nPrime Meridian: \tGreenwich\nAngular Unit: \tDegree\nd. 数据类型（文献、属性、矢量、栅格、文本等）：\n栅格（GeoTIFF）","doi":"10.11888/Ecolo.tpdc.271771","projection":"","language":"zh","share_type":"offline","east":102.23,"west":89.45,"south":31.39,"north":36.12,"scale":null,"crs":null,"filesize":0.08,"share_policy":"b","ts_created":"2021-10-26T14:55:39.405558+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-10-27T09:07:42.423845+08:00","time_description":"1990年代","datas_group":0,"time_description_en":"1990s","data_format":null,"project":[11],"specials":[],"cite":null,"review_status":5,"review_invite":[{"user_name":"郭群","username":"guoq@igsnrr.ac.cn","email":"guoq@igsnrr.ac.cn","is_cancel_expert":false}],"review_editor":{"id":42421,"last_login":"2022-04-08T15:16:51.670544+08:00","username":"任慧霞","email":"510727846@qq.com","is_active":true,"is_staff":true,"user_name":"任慧霞"},"data_sources":null,"temporal_resolution":"Yearly","spatial_resolution":"1km - 10km","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[21],"subtopics":{"metadata":"8add8d6c-939d-4da2-8d3d-4cc16551d3d0","three_pole":null,"third_pole":null},"username":"范玉枝","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":442}