Constraints of commercially available seed diversity in restoration: Implications for plant functional diversity

Description: Data and code used to generate all major analyses in a continental study on the effects of seed availability in commercial markets on the restoration of functionally diverse species assemblages for use in restoration plantings.

Woodlands have been used as a model vegetation type when "running analyses" to generated simulated planting assemblages and compute functional dispersion across planting assemblages of varying species richness in the seed_available pool (constrained by market availability) versus the total species pool (seed_available + not_available). Woodlands have also been included as a model vegetation type when generating trait-infortmed species selection methods to maximise functional dispersion within the pool of market-available seed.

Modifications to the users directory may be required when running code to generate these analyses. A nested structure was used such as:
"Data/Info_and_outputs/Woodlands/sensitivity_output"
*Woodlands->folder containing R.Data simulation files of outputs for both species pools and richness levels
*sensitivity_output->folder containing the R.Data file of simulated planting assemblages generated using the trait-informed species selection approach

Data consists of two primary datasets

full_dataset_clean.csv
-consists of plant taxa "taxon_name", and their associated traits ("plant_height", "seed_mass", and "leaf_mass_per_area" grouped into vegetation assemblages "veg_group" based on seed availability "seed_available"

Fdis_output.csv
-consists of the output of functional dispersion "FDis" associated with 1,000 random simulations across each vegetation group "veg_type", species richness level "pool", and species assemblage scenario "study" (seed available vs. Total).

本数据集与代码用于支撑一项大陆尺度研究中的全部核心分析，该研究聚焦商业市场种子可获得性对修复种植所需的功能多样物种类群组合恢复的影响。

在执行分析以生成模拟种植物种类群组合，并计算可获得种子库（受市场可获得性约束）与总物种种库（可获得种子库+不可获得种子库）内不同物种丰富度的种植类群组合的功能离散度（functional dispersion）时，本研究以林地（Woodlands）作为典型植被类型。在开发基于功能性状的物种选择方法以最大化市场可获得种子库内的功能离散度时，林地（Woodlands）同样被选为典型植被类型。

运行代码生成此类分析时，可能需要对用户工作目录进行调整。本数据集采用如下嵌套目录结构：
"Data/Info_and_outputs/Woodlands/sensitivity_output"
* 林地（Woodlands）：存储两类物种种库及不同物种丰富度对应的模拟输出R数据（R.Data）文件
* sensitivity_output：存储通过基于功能性状的物种选择方法生成的模拟种植物种类群组合的R数据（R.Data）文件

数据集包含两个核心数据表：
1. full_dataset_clean.csv：包含植物类群名称（taxon_name），以及其关联功能性状：植物高度（plant_height）、种子质量（seed_mass）、单位面积叶质量（leaf_mass_per_area），并依据种子可获得性（seed_available）将类群划分至植被类群（veg_group）。
2. Fdis_output.csv：包含功能离散度（FDis，functional dispersion）的计算结果，该结果来自针对每个植被类型组（veg_type）、物种丰富度水平（pool）以及物种类群场景（study，分为可获得种子组与总物种种群组）开展的1000次随机模拟。