Raw data for the manuscript: 'Water-extractable organic matter in soils of an organic dairy farming crop rotation: drivers of content and quality

The water-extractable organic carbon (WEOC/WEOM) content and quality of soils on an organically managed dairy farm (Aumenau, Hesse, Germany) were assessed using specific UV absorption values SUVA254 and fluorescence indices (HIX, BIX, FI) from 2022 to 2024 in six sampling campaigns. The results were analysed in conjunction with meteorological data, soil and site characteristics, and management methods using mixed linear effect models. The raw data includes: concentration and content of water-soluble organic carbon, SUVA254, HIX, BIX, FI, soil texture, bulk density, pH, electrical conductivity, gamma radiation, slope, soil organic carbon, soil mineral nitrogen Nmin, air and soil temperature, precipitation, water content, and information on crops with sowing and harvesting times, tillage intensity, and cow manure application data.The data can be found with an explanation in ‘Water_extractable_orgC_controllingDrivers.xlsx’. The locations of the trial areas can be found in the geopaket ‘subplot_cropland.gpkg’.2022—2024年，研究团队针对德国黑森州奥门瑙（Aumenau）一处有机管理型奶牛场的土壤，依托6轮采样活动，采用254 nm处的比紫外吸收值（SUVA254）以及荧光指数（HIX、BIX、FI），评估了土壤中水提取有机碳（Water-extractable organic carbon, WEOC/WEOM）的含量与质量特征。随后结合气象数据、土壤与立地特征、田间管理措施，采用混合线性效应模型对试验结果开展联合分析。本数据集的原始数据涵盖：水溶性有机碳的浓度与含量、SUVA254、HIX、BIX、FI、土壤质地、容重、pH值、电导率、γ辐射、坡度、土壤有机碳、土壤矿质氮（Nmin）、空气与土壤温度、降水量、土壤含水量，以及作物相关信息（含播种与收获时间、耕作强度）和牛粪施用数据。相关数据及说明文档可在文件‘Water_extractable_orgC_controllingDrivers.xlsx’中获取，试验样地的空间位置信息则可在地理数据包‘subplot_cropland.gpkg’中查看。