{"id":"fa10ddbf-7957-438c-ac41-d6c83d8344e7","title":"青藏高原长时间序列生态本底图（1990-2015）","title_en":"Long time series ecological background map of Qinghai Tibet Plateau (1990-2015)","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：以tif格式存储，文件名称为 “yyyy.tif”，其中yyyy代表年，比如2015.tif就代表这是2015年青藏高原生态系统分布图。\n各value值代表的生态系统类型； 1农田生态系统； 2森林生态系统；3草地生态系统；4水体与湿地生态系统；5荒漠生态系统；6聚落生态系统；7其它生态系统","description":"该数据集依据中分辨率长时间序列遥感影像Landsat，通过影像融合、遥感解译、数据反演等多种方式获得青藏高原1990/1995/2002/2005/2010/2015六期生态系统类型情况分布图，作出25年（1990-2015）青藏高原生态本底图，空间参考系统为Krasovsky_1940_Albers，空间分辨率为1000m。青藏高原各类生态系统面积统计表明，1990-2015年间，林地、草地面积略有减少，城镇用地、农村居民点及其他建设用地面积增加，河流、湖泊等水体面积增加，永久性冰川积雪面积减少。该图集可用于青藏高原生态工程的规划、设计及管理，并可作为生态系统现状的基准，用于阐明青藏高原重大生态工程建设的时空格局，揭示青藏高原生态系统格局和功能的变化规律和区域差异。","doi":"10.11888/Geogra.tpdc.271104","projection":"WGS84","language":"zh","share_type":"offline","east":105.0,"west":73.0,"south":24.0,"north":40.0,"scale":100000,"crs":null,"filesize":2.42,"share_policy":"c","ts_created":"2021-01-07T10:35:39.531736+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-06-10T19:28:13.789978+08:00","time_description":"","datas_group":0,"time_description_en":"","data_format":null,"project":[11],"specials":["b6500306-f60b-4aa1-b0b6-0324d94866df"],"cite":null,"review_status":5,"review_invite":[{"user_name":"冯敏","username":"mfeng","email":"mfeng@itpcas.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":"fa10ddbf-7957-438c-ac41-d6c83d8344e7","three_pole":null,"third_pole":null},"username":"洪江涛","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":2458}