Dataset to: Cereal yield, yield stability, and nitrous oxide release in European conservation agriculture: A meta-analysis

Dataset 1: Cereal yield and yield stabilityDataset 1 compiles 58 field experiments reported in 48 peer‑reviewed articles published between 1986 and 2024. The studies span 19 countries and 10 European environmental zones, with annual precipitation ranging from approximately 300 to 1,800 mm and mean annual temperatures from 2.6 to 20 °C.Each record includes geo‑referencing information, soil characteristics, climatic variables, experimental design details, cropping practices, agronomic management, and yield statistics (means, standard deviations (SD), and sample sizes in years) for conventional agriculture (CONV) and conservation agriculture (CA).Derived variables include effect sizes on yield (ln R) and the relative coefficient of temporal yield variation (as inverse measure of yield stability), (ln CVR), their variances, random‑effects weights, 95% confidence intervals, percentage change attributable to CA relative to CONV. Dataset 2: N₂O emissionsDataset 2 compiles 11 field experiments conducted across 8 countries and 5 environmental zones, with N₂O monitoring periods ranging from 79 to 365 days. These studies were published in 11 peer‑reviewed scientific articles between 2003 and 2018.The dataset contains the same core variables as Dataset 1, and additionally specifies the measurement season (growing season vs. full year) and the crop grown during the measurement year.Outcome variables include cumulative N₂O emission means, standard deviations (SDs), and sample sizes (replicates) for CONV and CA. Derived metrics comprise the log response ratio for N₂O (ln RN₂O), its variance, random‑effects weights, 95% confidence limits, p‑values, and the percentage change in N₂O emissions under CA relative to CONV.数据集1：谷物产量与产量稳定性 数据集1整合了1986年至2024年间发表的48篇同行评议论文中报道的58项田间试验。该项研究覆盖19个国家与10个欧洲环境分区，年降水量范围约为300至1800毫米，年均气温介于2.6至20摄氏度之间。 每项记录均包含地理参考信息、土壤特性、气候变量、试验设计细节、耕作措施、农艺管理方案，以及常规农业（conventional agriculture, CONV）与保护性农业（conservation agriculture, CA）的产量统计数据（均值、标准差（standard deviations, SD）及年度样本量）。 衍生变量包括产量效应量（ln R）、作为产量稳定性反向衡量指标的时间性产量变异相对系数（ln CVR）、二者的方差、随机效应权重、95%置信区间，以及相较于常规农业，保护性农业带来的产量变化百分比。 数据集2：氧化亚氮（N₂O）排放 数据集2整合了2003年至2018年间发表的11篇同行评议科学论文中的11项田间试验，试验覆盖8个国家与5个环境分区，氧化亚氮监测周期介于79至365天之间。 该数据集包含与数据集1相同的核心变量，此外还额外标注了监测季节（生长期vs全年）以及监测年度种植的作物种类。 结果变量包括常规农业与保护性农业的累积氧化亚氮排放均值、标准差（SDs）以及样本量（重复次数）。衍生指标包括氧化亚氮的对数响应比（ln RN₂O）、其方差、随机效应权重、95%置信限、p值，以及相较于常规农业，保护性农业下氧化亚氮排放的变化百分比。