Soil gas concentration and flux data from two peatland forest harvesting experiments in Southern Finland

The dataset contains data analyzed in a scientific manuscript Peltoniemi et al., <em>Soil CO₂, CH₄ and N₂O concentrations and fluxes in peatland forests are associated with water table level - implications of selection harvesting on soil emissions</em>, in review. The data was collected from two peatland forests. The sites Lettosuo (60.63° N, 23.95° E ) and Paroninkorpi (61.01°N, 24.75°E) locate in southern Finland, and they are fertile drained spruce mires. Both sites have unharvested control and selection harvested treatments. The dataset contains CO₂, CH₄, N₂O and O₂ concentrations analyzed by gas chromatograph from soil gas samples collected with silicon rubber tubes inserted into soil at different depths over the year 2018-2020. The dataset additionally contains soil gas flux measurements in 2020 with a portable gas analyzer. Air temperature and water table level were measured at both sites, rainfall in nearby meteorological stations, and soil redox potential at one of the sites (Paroninkorpi). More information about the research sites and data is available in the manuscript, and Laurila et al., 2020 (http://urn.fi/URN:ISBN:978-952-380-191-2).本数据集包含Peltoniemi等人已投稿待审的科学论文《泥炭地森林土壤CO₂、CH₄与N₂O浓度及通量与地下水位的关联——择伐对土壤排放的影响》（Soil CO₂, CH₄ and N₂O concentrations and fluxes in peatland forests are associated with water table level - implications of selection harvesting on soil emissions）中的分析数据。数据采集自两处位于芬兰南部的泥炭地森林样地：Lettosuo（60.63° N，23.95° E）与Paroninkorpi（61.01°N，24.75°E），二者均为肥沃的排水云杉泥炭沼泽，且均设置了未采伐对照与择伐两种处理方式。数据集包含2018-2020年间，通过插入不同深度土壤的硅橡胶管采集的土壤气体样本，经气相色谱仪（gas chromatograph）分析得到的CO₂、CH₄、N₂O及O₂浓度数据；此外还收录了2020年采用便携式气体分析仪测得的土壤气体通量数据。两处样地均测定了空气温度与地下水位，周边气象站记录了降雨数据，其中Paroninkorpi样地额外测定了土壤氧化还原电位。更多关于研究样地与数据集的详细信息可查阅该投稿论文，以及Laurila等人2020年的研究（http://urn.fi/URN:ISBN:978-952-380-191-2）。