{"id":"0230759c-1726-440e-824e-64e852658a89","title":"青藏高原8千米分辨率植被净初级生产力数据集（1990-2015）","title_en":"8 km resolution vegetation net primary productivity data set of the Tibetan 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：NPP数据以TIFF格式存储，文件的名称为“npp_yyyy.tif”，其中yyyy代表年，比如npp_1990.tif就代表1990年青藏高原的植被净初级生产力空间分布状况。\n数据读取方式：tif数据可以直接用ArcGIS打开。","description":"植被净初级生产力（Net Primary Productivity, NPP）作为生态系统物质及能量循环的基础，能够反映区域和全球尺度植被的固碳能力，是评价陆地生态系统质量的重要指标。针对植被净初级生产力产品生产，基于光能利用率模型的原理耦合遥感、气象、植被及土壤类型数据进行了国家屏障区生态系统生产力建模研究。在参数的选择上，由GIMMS NDVI 3gv1.0数据、中国植被图、太阳总辐射值及温湿度等数据计算出光合有效辐射（APAR）；根据区域蒸散模型模拟水分胁迫因子，与土壤水分子模型相比，它可以简化参数，增强模型的可操作性。将光合有效辐射和实际光能利用率作为CASA模型的输入变量，基于参数化模型实现对青藏高原1990-2015年8km分辨率的陆地植被净初级生产力估算。","doi":"10.11888/Ecolo.tpdc.271032","projection":"Albers","language":"zh","share_type":"offline","east":104.63,"west":73.48,"south":25.99,"north":39.78,"scale":null,"crs":null,"filesize":9.83,"share_policy":"c","ts_created":"2020-12-22T02:12:16.528895+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-04-19T17:08:49.152803+08:00","time_description":"","datas_group":0,"time_description_en":"","data_format":null,"project":[11],"specials":["b6500306-f60b-4aa1-b0b6-0324d94866df","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":[],"subtopics":{"metadata":"0230759c-1726-440e-824e-64e852658a89","three_pole":null,"third_pole":null},"username":"刘焱序","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":4171}