Weathering Enhancement Data for Early Vascular Plant Analogues: Selaginella and Equisetum species.

This dataset contains weathering enhancement factor (WEF) calculations and elemental composition data from experimental assays designed to quantify plant-driven silicate and phosphorus weathering by early vascular analogues. Two species were studied: Selaginella remotifolia and two Equisetum spp. (E. fluviatile and E. scirpoides). The Selaginella microcosm assay used sealed glass jars containing granite or basalt and 0.9 g of plant material, incubated for ~90 days at 23°C. The Equisetum column assay used open-system PVC columns filled with sand and igneous rock, planted with either E. fluviatile (6 g) or E. scirpoides (0.6 g), and maintained under high humidity. Both setups included abiotic controls. Following incubation, plant tissue and solution samples were analysed using LC-ICP-MS to determine concentrations of weathered phosphorus, calcium, and magnesium. WEFs were calculated from both plant uptake and solute concentrations, relative to abiotic controls. Included files: WEFs_Selaginella.xlsx: WEFs and tissue composition for S. remotifolia WEFs_Equisetum_and_barcharts.xlsx: WEFs for Equisetum spp. and chart-ready data Conor_data.csv: Formatted data for plotting relative biotic vs. abiotic weathering Conor_final.R: R script used to generate summary barcharts本数据集包含风化增强因子（weathering enhancement factor, WEF）的计算结果，以及源自实验测定的元素组成数据，相关实验旨在量化早期维管植物类似物驱动的硅酸盐与磷素风化过程。本次研究共涉及两个类群的植物：疏花卷柏（Selaginella remotifolia），以及木贼属（Equisetum）的两个物种——溪生木贼（E. fluviatile）与帚状木贼（E. scirpoides）。 卷柏属微宇宙实验采用密封玻璃罐，罐内装填花岗岩或玄武岩基质与0.9g植物材料，于23℃条件下培养约90天。木贼属柱式实验采用开放系统PVC柱体，内部填充砂质基质与火成岩，分别定植6g溪生木贼或0.6g帚状木贼，并维持高湿度培养环境。两种实验设置均包含非生物对照样本。 培养周期结束后，研究人员采用液相色谱-电感耦合等离子体质谱法（LC-ICP-MS）对植物组织与溶液样品进行分析，以测定经风化释放的磷、钙与镁元素浓度。研究基于植物吸收量与溶质浓度，以非生物对照为参照计算得到WEFs。 本数据集包含以下文件： - WEFs_Selaginella.xlsx：疏花卷柏（Selaginella remotifolia）的WEF值与组织组成数据 - WEFs_Equisetum_and_barcharts.xlsx：木贼属（Equisetum）物种的WEF值与可直接用于绘图的标准化数据 - Conor_data.csv：用于绘制生物风化与非生物风化相对对比的格式化数据文件 - Conor_final.R：用于生成汇总柱状图的R脚本文件