{"id":"16ab2287-e57b-40fe-b4cb-97d88cf8f281","title":"土壤碳氮循环观测数据-西藏水平及垂直样带土壤及植物碳氮数据（2021）","title_en":"Soil carbon and nitrogen cycle analysis data - soil and plant carbon and nitrogen data of horizontal and vertical transects in Tibet (2021)","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":"采用英文给数据文件命名。文件命名：采用时间加数据参数名称的形式，即文件“yyyy-traits.xlsx”，其中yyyy代表年，Traits代表数据参数名称。如“2020- soil and leaf CN content.xlsx”，代表2020年的土壤及叶片碳氮含量。具体取样日期均在表格中有所具体描述。\n\n数据读取方式：可用广泛使用的excel文件（.xlsx）读取。","description":"该数据集包含了2020年青藏高原草原水平及垂直样带土壤和植被碳氮含量。土壤中碳（C）、氮（N）元素作为植物生长发育所需的重要营养元素，其含量高低及其化学计量特征不仅可以反映植物制造同化产物的能力和养分利用效率，还能判断影响植物生长发育的限制性元素。其中，C:N是判定叶片光合作用固碳能力的重要依据，因此分析高原地区水平及垂直样带上土壤及植物的碳氮含量，对生态环境建设具有重要意义。该数据主要是通过2020年的样带考察时实地观测获得（此后在实验室内进行分析测定）。获得样方植物样品后利用中科院植物所分析中心元素分析仪及总碳/总氮分析仪测试。其中，土壤有机碳及总氮为三个重复取样所得平均数。共获得了8个样点不同草地类型水平样带样点的土壤碳氮含量及22个水平样带样方、5个垂直样带样方的植被叶片碳氮含量。","doi":"10.11888/Terre.tpdc.271945","projection":"","language":"zh","share_type":"protected","east":93.2,"west":95.6,"south":30.3,"north":29.2,"scale":null,"crs":null,"filesize":0.04,"share_policy":"c","ts_created":"2021-12-17T16:39:15.014077+08:00","doi_type":"拥有自主知识产权","ts_updated":"2022-01-26T09:41:08.186921+08:00","time_description":"","datas_group":0,"time_description_en":"","data_format":null,"project":[11],"specials":[],"cite":null,"review_status":5,"review_invite":[{"user_name":"冯金良","username":"冯金良","email":"fengjl@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":"Daily","spatial_resolution":"<= 1 m","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[21],"subtopics":{"metadata":"16ab2287-e57b-40fe-b4cb-97d88cf8f281","three_pole":null,"third_pole":null},"username":"吕晓敏","review_time":null,"protected_duration":24,"protected_describe":null,"is_important":false,"hit_count":291}