{"id":"17538a1d-3f5f-4af6-847e-592756ac9650","title":"中亚-基础数据集-生态-2016","title_en":"Central Asia - basic data set - Ecology - 2016","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":"命名规则：mid-asia. 数据类型\n使用方法：解压后，直接在arcgis中打开 mid-asia. npp文件，格式为：tif","description":"植被净初级生产力指数（Net PrimaryProductivity，NPP）反映的是植物固定和转化光能为化合物的效率，是指绿色植物在单位时间、单位面积内所累积有机物数量，是由植物光合作用所产生的有机质总量（Gross Primary Productivity，GPP）中减去自养呼吸（Autotrophic Respiration，RA）后的剩余部分，也称净第一生产力。NPP作为地表碳循环的重要组成部分，不仅直接反映了植被群落在自然环境条件下的生产能力，而且也是衡量区域土地利用/覆被变化的重要组成部分。该数据是2016年8天合成的1km分辨率净初级生产力数据产品，采用光能利用率（GLOPEM）模型算法通过多种卫星遥感数据（Landsat、MODIS等）反演得到的多种尺度栅格数据产品，该数据也是判定和调节生态过程的主要因子。","doi":"","projection":"WGS84","language":"zh","share_type":"online","east":87.0,"west":46.0,"south":35.0,"north":55.0,"scale":null,"crs":null,"filesize":3.33,"share_policy":"a","ts_created":"2020-01-21T02:02:46.591560+08:00","doi_type":"国际公开共享数据","ts_updated":"2021-04-19T11:06:57.823289+08:00","time_description":"","datas_group":3,"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},{"user_name":"赵新全","username":"赵新全","email":"xqzhao@nwipb.cas.cn","is_cancel_expert":true}],"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":"Monthly","spatial_resolution":"1km - 10km","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[],"subtopics":{"metadata":"17538a1d-3f5f-4af6-847e-592756ac9650","three_pole":null,"third_pole":"XDA20060303"},"username":"XDA20060303","review_time":"2020-01-21T02:06:54.485879+08:00","protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":2378}