Soil redox potential vs. soil microbial activity and structure

The dataset was collected as a part of the Carbon Action field experiment in 2021. The experiment had 100 farms testing carbon farming practices 2019-2023. These samples were from a subset of 20 farms, which were routinely sampled every year. I measured the following parameters redox potential Eh, with an ORP meter + electrode reference voltage at 50% pore filled moisture pH in distilled water 10:1 water:soil mixture VESS soil structure on the field CO2burst by rewetting dried soil and measuring how much CO2 was respired in 24 hours pH and Eh were used to calculate a rH2 hydrogen potential, which combines Eh and pH Background information for clay and organic matter content was determined separately the clay content was defined by sieving and the organic matter content by loss of ignition. The analysis of the results is published in Plant and Soil journal in 2023. Mattila, T.J., 2023. Redox potential as a soil health indicator - how does it compare to microbial activity and soil structure? https://doi.org/10.1007/s11104-023-06305-y本数据集采集自2021年实施的“碳行动”（Carbon Action）田间试验项目。该试验于2019至2023年间选取100家农场开展碳农业实践测试。本次使用的样本来自其中20家农场组成的子样本集，该子样本的参与农场每年均接受常规采样。本研究测定了以下土壤参数：氧化还原电位Eh（redox potential Eh），采用氧化还原电位计（ORP meter）及配套电极，在孔隙填充湿度达50%的条件下测定参比电压；pH值采用10:1水土比的蒸馏水悬浮液法测定；田间VESS土壤结构目视评分（Visual Evaluation of Soil Structure）；通过复湿风干土壤并培养24小时后测定其呼吸释放的CO₂量，得到CO₂爆发（CO₂ burst）值。基于pH与Eh可计算得到整合了二者信息的rH₂氢电位。黏土含量与有机质含量的背景参数另行测定：其中黏土含量通过筛分法确定，有机质含量通过烧失量法测定。本数据集的结果分析已发表于2023年的《植物与土壤（Plant and Soil）》期刊，论文作者为Mattila T.J.，题为《氧化还原电位作为土壤健康指标——其与微生物活性及土壤结构的对比研究》，DOI：10.1007/s11104-023-06305-y