{"id":"3cd72cd2-1203-49d4-96ca-d38b77359891","title":"青藏公路沿线不同土地利用类型土壤性质数据集（2019）","title_en":"Soil properties data set of different land use types along the Qinghai-Tibet Highway (2019)","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":"XDA200402022-Q-T H2000DLUTSoilP.zip：其中XDA20040202是子课题编号，2是子子课题编号，Q-T H代表青藏公路, 2000表示数据年份，DLUTSoilP表示不同土地利用类型土壤性质；数据可以用EXCEL打开查看和分析.","description":"于2019年7月至8月在青海省西宁市至格尔木市段、青海省格尔木市至西藏自治区拉萨段、以及格尔木市至西宁段每隔20km在远离人为扰动的地方采集不同土地利用类型的土壤样品，共计土壤样品147个，其中草地83个，沙地48个，农地14个，林地3个。数据集内容包括序号、各样点地理位置、土地利用类型、经纬度坐标、海拔、土壤全氮、全磷、全钾含量和土壤pH，数据格式为Excel表。本数据集通过野外采样与室内实验相结合的方法自主测定获得。在各样方内用随机取样法，用土钻(直径8 cm)取0-15 cm的土样，用粗筛筛去与根系脱离的土壤，全氮、全磷、全钾的测定是全样，用的0.15mm的土样，其中全氮通过半自动凯氏定氮仪测定，全磷采用分光光度计测定，全钾采用火焰光度计测定，pH测定：称取过1mm筛的风干土样10g于50ml烧杯中，加入无二氧化碳蒸馏水保持水土比为2.5:1，用PHSJ-4F实验室进行测定。此数据可为高寒生态系统修复提供数据支撑和科学依据。","doi":"10.11888/Soil.tpdc.271736","projection":"","language":"zh","share_type":"protected","east":101.0,"west":90.0,"south":30.0,"north":37.0,"scale":null,"crs":null,"filesize":0.05,"share_policy":"a","ts_created":"2021-10-03T09:42:22.409252+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-10-28T09:51:14.591646+08:00","time_description":"2019年","datas_group":0,"time_description_en":"2019","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":"Yearly","spatial_resolution":"-","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[6],"subtopics":{"metadata":"3cd72cd2-1203-49d4-96ca-d38b77359891","three_pole":null,"third_pole":"XDA20040202"},"username":"XDA20040202","review_time":null,"protected_duration":6,"protected_describe":null,"is_important":false,"hit_count":717}