Data for: Stabilisation of soil organic matter with rock dust partially counteracted by plants

In this study, the effect of rock dust addition on both soil inorganic and organic carbon contents was investigated. Soil chemical changes were measured, including soil organic carbon (totals and fractions), soil inorganic carbon, pH, electric conductivity, and water-extractable and ammonium acetate-extractable ion levels (Ca, Mg, Al, Fe, Mn, Fe, Zn, Si). In addition, the effect of plants on soil chemistry and rocks on plant growth (biomass) and plant ion uptake was studied. The results demonstrated rock weathering during the 6 months incubation period and a stabilisation of organic carbon. Plants partially counteracted the stabilisation of soil organic carbon. This was attributed to interactions between soil chemical changes induced by rock dust, plant exudation, and subsequent soil organic carbon stabilisation mechanisms., , , # Primary data for Stabilisation of soil organic matter with rock dust partially counteracted by plants

[https://doi.org/10.5061/dryad.djh9w0w67](https://doi.org/10.5061/dryad.djh9w0w67)

This experiment investigated the effect of rock dust addition to soil, low and high watering and plant/no plant on soil chemical parameters, in particular soil inorganic and organic carbon contents. Both soil inorganic and organic carbon contents increased after rock dust addition and this was associated with other soil chemistry changes, including, pH, EC and available cations.

## Description of the data and file structure

In the Excel sheet, the first two tabs show baseline data from the soil before the trial with parameters measured in different number of replicates. It is divided into soil-only baseline and baseline with rock mixed into the soil in the same proportion as in the incubation trial (4%). The total soil carbon contents in the baselines are in an extra tab since a larger number of rep...

本研究探讨了岩粉添加对土壤无机碳与有机碳（soil organic carbon）含量的影响。研究测定了相关土壤化学性质变化，包括土壤有机碳（总量及组分）、土壤无机碳、pH值、电导率（electric conductivity, EC），以及水提取态（water-extractable）与乙酸铵提取态（ammonium acetate-extractable）的离子含量（Ca、Mg、Al、Fe、Mn、Fe、Zn、Si）。此外，本研究还探究了植物对土壤化学性质的调控作用，以及岩粉对植物生长的生物量（biomass）与植物离子吸收的影响。

研究结果表明，在6个月的培养周期（incubation period）内发生了岩石风化（rock weathering）现象，且土壤有机碳出现固持；植物可部分抵消土壤有机碳的固持过程，该现象归因于岩粉诱导的土壤化学变化、植物根系分泌物（plant exudation）与后续土壤有机碳固持机制之间的相互作用。

# 岩粉添加促进土壤有机质固持且可被植物部分抵消的原始数据

https://doi.org/10.5061/dryad.djh9w0w67

本实验探究了土壤添加岩粉、高低供水处理以及有/无植物种植对土壤化学参数的影响，重点关注土壤无机碳与有机碳含量。岩粉添加后，土壤无机碳与有机碳含量均显著提升，且该变化与pH值、EC及有效态阳离子（available cations）等其他土壤化学性质的改变密切相关。

## 数据与文件结构说明

本实验的Excel文件中，前两个工作表（tabs）展示了试验开展前的土壤基线数据，各参数设置了不同数量的重复样本（replicates）。该数据集分为纯土壤基线组与按培养实验相同比例（4%）将岩粉混入土壤的基线组。基线组的土壤总碳含量单独置于一个额外工作表中，因该组的重复样本数量较多……