{"id":"cc72d8d2-0f2a-4ad0-88f4-b230333b3861","title":"中国北方温性草地地上生物量数据集（1993-2019）","title_en":"Aboveground biomass data set of temperate grassland in northern China (1993-2019)","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：草地地上生物量数据集以栅格Tif 格式存储，文件的名称为“AGByyyy.tif”，其中AGB代表草地地上生物量，yyyy代表年份；比如 AGB2019.tif 就代表2019年中国北方温性草地地上生物量。\n数据打开方式：该数据集中每年数据为栅格 Tif 格式，可用ArcGIS软件直接打开。","description":"本数据集以大量的地面实测草地地上生物量数据为基础，以1980s中国植被类型图划分出温性草地类型，借助Google Earth Engine平台上的Landsat遥感数据，在不同草地类型分别构建了草地地上实测生物量-遥感数据的随机森林模型，在验证可靠的基础上，对1993～2019年间逐年的草地地上生物量进行了估算，从而形成了1993～2019年中国北方温性草地地上生物量的逐年空间数据集。地上生物量定义为单位面积内地面以上实存生活的植被有机物质总量。已对原有栅格值乘以系数100，单位：0.01克/平方米（g/m²）。本数据集可为中国北方温性草地资源、生态环境的动态监测和评价提供科学基础。","doi":"10.11888/Ecolo.tpdc.271154","projection":"WGS84","language":"zh","share_type":"offline","east":134.78,"west":73.49,"south":31.7,"north":53.56,"scale":null,"crs":null,"filesize":97689.6,"share_policy":"c","ts_created":"2021-01-22T14:19:51.677989+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-10-29T08:21:57.643595+08:00","time_description":"","datas_group":0,"time_description_en":"","data_format":null,"project":[11],"specials":["f2a78cde-1c98-4241-94dc-7532eba32b80"],"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":"10m - 100m","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[6],"subtopics":{"metadata":"cc72d8d2-0f2a-4ad0-88f4-b230333b3861","three_pole":null,"third_pole":"XDA20050103"},"username":"XDA20050103","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":2929}