Tree ring growth data in Json format for the development of logistic tree mortality models.
收藏资源简介:
Json format is an easy-to-read textual representation of the experimental data. Data in Json format has great processing capabilities in R (https://www.r-project.org). R is a free software environment for statistical computing and graphics. Initial data: Treedata.txt и RWdata.txt Based on the initial data that are in the public domain (Cailleret et al., 2016), a data structure for tree ring increments in Json format and a converter program in the R programming language were developed. Converter program: Treedata.RWdata.to.json.R Result: TreeRWdata.json The following data is defined for each tree: Site- identifier of the tree's growing place, Species- short name of the species, Name- tree identifier, Article- link to the article, Contact- author, Old- tree age, be.sep- sign of tree status, Status- tree status values (1- live , 0- dead), Years- [year of birth of tree, year of sampling from tree or year of dried tree, DBH- diameter of tree at breast height (cm), Series- number of measurements of tree rings (mm) Reference: Cailleret, Maxime et al. (2016), Data from: Towards a common methodology for developing logistic tree mortality models based on ring-width data, Dryad, Dataset, https://doi.org/10.5061/dryad.1bv6n
JSON(JavaScript Object Notation)格式是一种便于阅读的实验数据文本表示形式。此类格式的数据在R语言(https://www.r-project.org)中拥有优异的处理性能。R是一款用于统计计算与图形可视化的免费软件环境。 原始数据集包括Treedata.txt与RWdata.txt。 基于公开可获取的原始数据(Cailleret等,2016),研究团队开发了JSON格式的树木年轮增量数据结构,以及一款基于R编程语言的转换程序。 转换程序:Treedata.RWdata.to.json.R 最终结果文件:TreeRWdata.json 针对每棵树木,定义如下字段: Site:树木生长地点的标识符; Species:物种种名缩写; Name:树木唯一标识符; Article:相关研究文献的链接; Contact:通讯作者; Old:树木树龄; be.sep:树木状态标识符号; Status:树木状态取值(1表示存活,0表示死亡); Years:[树木出生年份,树木采样年份或枯树枯亡年份]; DBH:树木胸径(单位:厘米); Series:树木年轮测量序列(单位:毫米) 参考文献: Cailleret, Maxime等(2016),数据集:基于年轮宽度数据构建逻辑斯蒂树木死亡率模型的通用方法,Dryad数据库,数据集,https://doi.org/10.5061/dryad.1bv6n



