{"id":"b8bfbb8b-97e4-4622-acbd-06b5ac466403","title":"祁连山天老池流域土壤物理性质—土壤容重、机械组成数据集","title_en":"Soil physical properties - soil bulk density and mechanical composition dataset of Tianlaochi Watershed in Qilian Mountains","serial":"黑河计划","user_limit":"本数据由“黑河流域上游森林草地生态系统生态-水文过程的相互作用机制研究”项目产生，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6月-2012年8月共采集不同植被类型、不同海拔及不同地形的土样共137个，每个样点的土层分0-10cm、10-20cm和20-30cm三层取样，海拔在2700-3500m之间，植被类型分青海云杉林，祁连圆柏林，亚高山灌丛草甸，草地和干草原五种类型，在采样的同时利用手持GPS记录每个采样点的位置信息和环境信息，包括：经度、纬度、海拔、坡度、坡向、地形曲率、植被类型、土壤厚度、最大根系深度等。\n土壤容重：土壤容重的测量方法为将样品装入信封中在105℃的条件，放入烘箱中烘干24小时，取出后放置30分钟称重，称重结果与环刀体积的比值即为土壤容重，单位g/cm3。\n土壤机械组成：土壤机械组成的测量采用了比重计法，机械组成包括土壤砂粒、粉粒和粘粒含量。","doi":"10.3972/heihe.093.2013.db","projection":"4326","language":"zh","share_type":"offline","east":99.98,"west":99.73,"south":38.5,"north":38.33,"scale":null,"crs":null,"filesize":64.0,"share_policy":"c","ts_created":"2013-08-16T08:43:00+08:00","doi_type":"","ts_updated":"2021-04-20T00:47:59.441657+08:00","time_description":"","datas_group":0,"time_description_en":"","data_format":"EXCEL","project":[10,11,15],"specials":["4e7b97a6-ee1f-4b51-83e5-04a100993973"],"cite":"赵传燕,马文瑛等，祁连山天老池流域土壤物理性质—土壤容重、机械组成数据，黑河计划数据管理中心，2013.[doi:10.3972/heihe.093.2013.db]","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":[91],"subtopics":{"metadata":"b8bfbb8b-97e4-4622-acbd-06b5ac466403","three_pole":null,"third_pole":null},"username":"赵传燕","review_time":null,"protected_duration":6,"protected_describe":null,"is_important":false,"hit_count":7305}