{"id":"eed3faf6-73a2-4d61-9a69-4a0ed6dfcc91","title":"青藏高原湿地格局变化数据集（1970s，2000s）","title_en":"The dataset of wetland pattern changes on the Tibet Plateau (1970s, 2000s)","serial":"泛第三极环境大数据平台","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":"","description":"据根据科学考察编制的中国沼泽图解译的1970年代的青藏高原湿地格局以及由landsat TM(30m分辨率)卫星影像数据解译的2000年代青藏高原湿地格局。\n70年代中国沼泽图解译，2006-2009年landsat TM影像目视解译：\na) 全区自然区划的基础上，参考不同自然地理单元和实际调查获得的数据资料，建立不同湿地类型的解译标志。\nb) 根据建立的解译标志，采用人工目视的方法初步提取面积大于10 km2的湿地（不包括永久性、季节性河流和河床）。\nc) 根据解译结果，配合研究区90m分辨率地形图以及研究区范围内湿地斑块调查的实际情况，人工进行斑块修改和补充。\n70年代数据根据长春地理所青藏高原科学考察编制的中国沼泽图解译获得。\n2000年代湿地数据来源于landsat TM(30m分辨率)卫星影像数据。\n数据质量良好。","doi":"10.11888/Ecology.tpe.51.file","projection":"","language":"zh","share_type":"online","east":104.0,"west":73.0,"south":28.0,"north":38.0,"scale":null,"crs":"","filesize":5.619,"share_policy":"a","ts_created":"2018-07-18T19:49:21+08:00","doi_type":"","ts_updated":"2021-11-02T16:17:34.999797+08:00","time_description":"","datas_group":3,"time_description_en":"","data_format":"shp","project":[11,12],"specials":["1832ecb3-70d0-4b5e-bdb5-2e9ff4ad1efe","f2a78cde-1c98-4241-94dc-7532eba32b80"],"cite":"青藏高原湿地格局变化数据集(1970-2000).泛第三极环境大数据平台.2000","review_status":5,"review_invite":[],"review_editor":{"id":21057,"last_login":"2022-04-02T11:43:37.753860+08:00","username":"gecm","email":"gechm@lzb.ac.cn","is_active":true,"is_staff":true,"user_name":"盖春梅"},"data_sources":"","temporal_resolution":"","spatial_resolution":"","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[],"subtopics":{"metadata":"eed3faf6-73a2-4d61-9a69-4a0ed6dfcc91","three_pole":null,"third_pole":null},"username":"SDB","review_time":null,"protected_duration":6,"protected_describe":null,"is_important":false,"hit_count":3530}