Data of characteristics of particulate organic matter separated from different soils in the Yellow River Delta

We provide several data in this paper used in the research article “Spatial heterogeneity of particulate organic matter (POM) for the sorption of ciprofloxacin at the microstructure scale”. POM is an organic-mineral complex comprising of organic debris, light-density organic matter and has a relatively high turnover rate in the soil active organic carbon pool. POM has complex morphological structure, containing varying surface and inner interspacing pore structure, depends on the parent plants species and fragments as well as on its decomposition degree [1,2]. POM fragments were colonized by the microbial population, and simultaneously adsorbed clay-sized minerals [2,3]. Thus, the porous characteristics of POM containing the surface and inner interspacing pore structure showed in Table 1, the components and the proportion of organic functional groups detailed information showed in Fig.1.
Samples were analyzed using SEM (Hitachi S-4800, Japan) to determine the organic-mineral of POM and the SEM images of the POM on the silicon wafer showed in Fig.2(a) and Fig.2(b), subsequently this data were the foundation for further analyzed by NanoSIMS in the related research article showed in Fig.2(c).

本文提供了发表于《微观尺度下颗粒有机质（POM）对环丙沙星吸附的空间异质性》研究论文中的多组数据集。颗粒有机质（POM）是由有机残体、轻密度有机质构成的有机-矿物复合体，在土壤活性有机碳库中具备相对较高的周转速率。POM具有复杂的形貌结构，包含各异的表面与内部间隙孔隙结构，其结构特征取决于母源植物种类、残体组分以及分解程度[1,2]。POM碎片可被微生物群落定殖，并同时吸附黏土级矿物颗粒[2,3]。因此，包含表面与内部间隙孔隙结构的POM孔隙特征详见表1，其有机官能团的组成与占比详细信息见图1。
采用扫描电子显微镜（SEM，日立S-4800，日本）对样品进行分析，以测定POM的有机-矿物组成；硅片上POM的SEM图像见图2(a)与图2(b)，后续相关研究中采用纳米二次离子质谱（NanoSIMS）开展进一步分析的基础数据即源于此，相关结果见图2(c)。