{"id":"3cd4360c-e198-4ba3-8a94-3932940180bc","title":"歇马虎头村不同土地利用方式下土壤质量数据集（2020）","title_en":"Soil Quality Data Set of Xiemahutou Village under Different Land Use Modes (2020)","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：数据以EXCEL形式储存，文件首页展示了所有样地的基本信息，文件sheet名称表示数据的内容。\n数据读取方式：该数据集中的所有文件可以直接用Excel打开","description":"本数据集包括歇马虎头村附近耕地、林地、草地等不同土地利用方式下的土壤有机碳及组分、土壤养分、土壤质地、土壤团聚体等数据信息。土壤样品采用土钻法取得，每种土地利用方式下设置4个重复。采集的土壤样品经过2 mm和0.25μm的筛后进行相关指标的测定。其中土壤有机碳及其组分采用重铬酸钾氧化-硫酸亚铁滴定法测定；土壤质地采用激光粒度仪测定；土壤团聚体采用湿筛法获得大团聚体，小团聚体和粉粘粒团聚体三个组分；土壤全氮采用凯式定氮法测定，土壤全磷采用高氯酸-硫酸法测定。","doi":"","projection":"","language":"zh","share_type":"offline","east":106.32,"west":106.31,"south":29.76,"north":29.763,"scale":null,"crs":null,"filesize":0.1,"share_policy":"c","ts_created":"2022-09-24T10:57:22.527583+08:00","doi_type":"拥有自主知识产权","ts_updated":"2023-04-04T18:37:27.366459+08:00","time_description":"2020","datas_group":0,"time_description_en":"two thousand and twenty","data_format":null,"project":[10],"specials":[],"cite":null,"review_status":5,"review_invite":[],"review_editor":null,"data_sources":null,"temporal_resolution":"Yearly","spatial_resolution":"100m - 1km","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[],"subtopics":{"metadata":"3cd4360c-e198-4ba3-8a94-3932940180bc","three_pole":null,"third_pole":null},"username":"李果","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":392}