{"id":"cae9a5c0-8ab8-4952-9869-f736f824d2bd","title":"黑河流域土壤粒径分布数据集","title_en":"Grain size distribution of soil particles dataset of the Heihe basin","serial":"黑河流域","user_limit":"本数据来源于北京师范大学，用户在使用数据时请在正文中明确声明数据的来源。","instructions":"FLT, TIFF 格式存储","description":"本数据集的源数据来源于第二次土壤普查的1：100万中国土壤图（Shi et al., 2004）和8595个土壤剖面。我们采用了多边形连接法将土壤剖面和土壤图斑连接起来得到了土壤砂粒、粉粒和粘粒含量图。连接时考虑到了剖面与图斑间的距离、土壤剖面个数和土壤分类信息。具体说明请见相关论文及网页。\n数据特征\n投影：GCS_Krasovsky_1940\n覆盖范围：黑河流域\n分辨率：0.00833 度（约一公里）\n数据格式：FLT, TIFF\n取值范围：0%-100%\n文件说明\n浮点栅格文件包括：\nsand1.flt, clay1.flt – 表层(0-30cm) 砂粒、粘粒含量。 \nsand2.flt, clay2.flt – 底层(30-100cm) 砂粒、粘粒含量。\npsd.hdr – 头文件: \nncols – 列数 \nnrows – 行数\nxllcorner – 左下角纬度 \nyllcorner – 左下角经度\ncellsize – 单元格大小\nNODATA_value – 空值 \nbyteorder - LSBFIRST, Least Significant Bit First \nTIFF 栅格文件包括: \nsand1.tif, clay1.tif -表层(0-30cm) 砂粒、粘粒含量。 \nsand2.tif, clay2.tif -底层(30-100cm) 砂粒、粘粒含量。 \n数据详细信息请参考：http://globalchange.bnu.edu.cn/research/soil","doi":"10.11888/Soil.tpdc.270589","projection":"4326","language":"zh","share_type":"online","east":104.2,"west":96.1,"south":37.7,"north":43.3,"scale":null,"crs":null,"filesize":23.74,"share_policy":"a","ts_created":"2013-07-27T23:42:06+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-04-18T14:07:10.766242+08:00","time_description":"","datas_group":3,"time_description_en":"","data_format":"栅格","project":[10,11,15],"specials":["4e7b97a6-ee1f-4b51-83e5-04a100993973"],"cite":"Shangguan, W., Y. Dai, B. Liu, A. Ye, and H. Yuan (2012), A soil particle-size distribution dataset for regional land and climate modelling in China, Geoderma, 171-172, 85-91. doi:10.1016/j.geoderma.2011.01.013","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":[77,79,95,106,162,103],"subtopics":{"metadata":"cae9a5c0-8ab8-4952-9869-f736f824d2bd","three_pole":null,"third_pole":null},"username":"上官微","review_time":null,"protected_duration":6,"protected_describe":null,"is_important":false,"hit_count":7774}