{"id":"b55606ef-e50e-40d4-80e1-a85c5e4dfb28","title":"青海湖表层沉积物总有机碳、总氮和总无机碳含量（2017）","title_en":"Total organic carbon, total nitrogen and total inorganic carbon in surface sediments of Qinghai Lake (2017)","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：青海湖总碳数据以EXCEL格式存储。\n文件名称为“青海湖表层沉积物总有机碳、总氮和总无机碳含量（2017年）”，其中2017年代表年，青海湖代表地点。\n数据读取方式：数据用MICROSOFT OFFICE EXCEL打开","description":"2017年，利用重力采样器在青海湖均匀采集了27个表层沉积物，取顶部1cm为表层，取回实验室后冷冻干燥并研磨成粉末状。测试有机碳氮含量之前需要用1mol/L的盐酸搅拌反应10小时以上，使碳酸盐被完全去除，再烘干研磨，有机碳氮在元素分析仪上测试。总无机碳含量是将全岩粉末样品用红外光谱测试碳酸盐含量，再反算为总无机碳含量。有机碳和无机碳含量组成了湖泊的总碳含量，两者含量接近，表明青海湖无机碳埋藏和有机碳埋藏通量相当。","doi":"10.11888/Paleoenv.tpdc.271416","projection":"WGS84","language":"zh","share_type":"protected","east":180.0,"west":99.6,"south":36.5,"north":37.2,"scale":2000,"crs":null,"filesize":0.04,"share_policy":"a","ts_created":"2021-05-28T21:13:23.108945+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-06-10T10:19:43.307978+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":"李育","username":"李育","email":"liyu@lzu.edu.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":"Daily","spatial_resolution":"1km - 10km","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[21],"subtopics":{"metadata":"b55606ef-e50e-40d4-80e1-a85c5e4dfb28","three_pole":null,"third_pole":null},"username":"陈嵘","review_time":null,"protected_duration":6,"protected_describe":"请联系数据上传者","is_important":false,"hit_count":873}