Data and Supplementary Information : timber ressource dynamics in West African cocoa agroforestry systems

Here we present three datasets (growthDB.csv, heightDB.csv and volumeDB.csv) describing 59 tree species used for wood production in cocoa Agroforestry System (AFS) in Côte d'Ivoire (West Afica). Our dataset includes a total of 4,634 trees: 2530 spontaneous and 2104 (trans)planted. 

We provide three table (per datasets in .csv format) with the following column per tree:

- gensp: species latin names

- dbh : tree diameter at breast height (cm)

- age: tree age (years)

- origin: tree origin (spontaneous or (trans)planted)

- WDmean : tree wood density (g.cm³)

- clus: study sites

- indsp : species index

- indclus : sites index

- hlog: tree bole height (m)

- vol : tree bole volume (m³)

We also provide, the STAN code (models.stan) to assess the wood production potential of trees in cocoa AFS: (i) a model describing the diameter growth trajectories of trees as a function of their age, (ii) a model evaluating the relationship between tree diameter and bole height, and (iii) a model assessing the commercial volume of trees as a function of their diameter and bole height.

Finally, we present additional tables and figures in Supplementary Information.pdf.

本研究公开了三套数据集（growthDB.csv、heightDB.csv及volumeDB.csv），用于描述西非科特迪瓦可可农林复合系统（Agroforestry System, AFS）中59种用材树种的相关信息。本数据集共计涵盖4634株林木：其中2530株为天然萌生株，2104株为（经）移栽定植株。

我们提供三套.csv格式的单数据集表格，每株林木对应如下字段：
- gensp：树种拉丁学名
- dbh：林木胸径（即树干部距地面1.3米处的直径，单位：厘米）
- age：林木树龄（单位：年）
- origin：林木起源类型（天然萌生或移栽定植）
- WDmean：林木平均木材密度（单位：克每立方厘米，g·cm⁻³）
- clus：研究样地标识
- indsp：物种索引
- indclus：样地索引
- hlog：树干高度（单位：米）
- vol：树干材积（单位：立方米，m³）

此外，本研究还附带STAN代码（models.stan），用于评估可可农林复合系统中林木的木材生产潜力，具体包含三类模型：(i) 以树龄为自变量的林木直径生长轨迹模型；(ii) 探究林木胸径与树干高度之间关联的模型；(iii) 以胸径和树干高度为自变量的林木商品材积评估模型。

本研究的补充材料详见Supplementary Information.pdf，其中包含额外的表格与图表。