{"id":"6072e549-68d6-46b7-8f92-54d6650f8df9","title":"黑河生态水文遥感试验：黑河流域中游箱式法土壤呼吸观测数据集（2012）","title_en":"HiWATER：Dataset of the chamber soil respiration in the middle of Heihe River Basin (2012)","serial":"HiWATER","user_limit":"本数据由“黑河生态水文遥感试验（HiWATER）”产生，用户在使用数据时请在正文中明确声明数据的来源，并在参考文献部分引用本元数据提供的引用方式。","instructions":"","description":"在2012年中游航空遥感试验开展期间，在中游的不同下垫面进行了“密闭箱-气相色谱法”测量土壤呼吸，选取了农田、果园、湿地、荒漠、戈壁、沙漠6个不同的下垫面进行测量。\n观测仪器：\n中科院寒区旱区环境与工程研究所同化箱。\n测量方式：\n同化箱由两部分组成：底座和箱体。底座采用PVC材料制成，下端埋于土壤中。箱体部分是由不锈钢制的立方体，一边开口。测量时将箱体盖在底座上，利用注射器抽取箱内的气体样品，将抽取的气体注射到气体采样袋中，运回实验室分析CO2的浓度，在中科院植物所利用气相色谱法进行测量。根据浓度的变化来计算土壤呼吸速率。每个测量点设3个重复。在盖上箱子密封5分钟后开始采第1次样，然后每间隔10分钟采一次样，总共采4次。\n数据内容：\n数据内容包含头文件信息和每10天1次的3次重复观测结果及平均数。\n观测地点：\n戈壁（EC19）、湿地（EC22）、荒漠（EC21）、沙漠（EC20）、果园（EC17）、玉米（EC15）\n观测时间：\n2012-6-16；2012-6-28；2012-7-9；2012-7-18；2012-7-30；2012-8-11；2012-8-21；2012-9-2；2012-9-13；2012-9-22。","doi":"10.3972/hiwater.035.2013.db","projection":"4326","language":"zh","share_type":"offline","east":100.4925,"west":100.3058,"south":38.7652,"north":38.918,"scale":null,"crs":null,"filesize":0.0,"share_policy":"b","ts_created":"2017-08-28T15:34:12+08:00","doi_type":null,"ts_updated":"2021-04-19T20:58:21.704765+08:00","time_description":"","datas_group":0,"time_description_en":null,"data_format":"文本","project":[10,11,15],"specials":["ee3dfdf5-2e9f-4b61-a301-4fb49e30e3c2","6f45f287-f49c-49aa-a5b7-e88e4132b9a8","8ece9045-32dc-49df-a50a-53afad3c4162","4e7b97a6-ee1f-4b51-83e5-04a100993973"],"cite":null,"review_status":5,"review_invite":[],"review_editor":null,"data_sources":null,"temporal_resolution":null,"spatial_resolution":null,"license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[43],"subtopics":{"metadata":"6072e549-68d6-46b7-8f92-54d6650f8df9","three_pole":null,"third_pole":null},"username":"胡晓利","review_time":null,"protected_duration":6,"protected_describe":null,"is_important":false,"hit_count":10631}