Processed XCT, pore-network, and DVC data for rainfall-induced physical crusting and drying-induced cracking in loess soil

This dataset contains processed and derived X-ray computed tomography (XCT), pore-network, and digital volume correlation (DVC) data from a laboratory study of rainfall-induced physical crusting and drying-induced cracking in loess soil. Soil cores were collected from an agricultural loess soil in Yangling, Shaanxi Province, China, and subjected to antecedent rainfall treatments of 0, 10, 15, and 25 min before controlled drying. The dataset includes surface-aligned porosity profiles, crust-thickness estimates, layer-resolved pore metrics for a 0–3 mm near-surface shell and a 3–10 mm subsurface band, pore-network descriptors, DVC-derived strain summaries, selected DVC raster outputs, figure source data, and processing code. These data were used to evaluate how rainfall-induced physical crusting modifies near-surface pore topology, pore isolation, and tensile-strain localization during drying. The package contains available processed and derived data rather than a complete raw XCT archive; original large-volume XCT projection data, full reconstructed grayscale volumes, and complete Avizo/Dragonfly project files are not included.本数据集包含经处理与衍生得到的X射线计算机断层扫描（X-ray computed tomography，XCT）、孔隙网络（pore-network）以及数字体相关（digital volume correlation，DVC）数据，源自一项针对黄土土壤降雨诱发物理结壳与干燥诱发开裂的实验室研究。研究土芯采自中国陕西省杨凌的一处农业耕作黄土样地，在受控干燥前分别施加0、10、15及25分钟的前期降雨处理。本数据集涵盖表面对齐孔隙率剖面、结壳厚度估算值、针对0–3 mm近表层壳层与3–10 mm次表层带的分层孔隙特征参数、孔隙网络描述符、DVC衍生的应变汇总数据、选定的DVC栅格输出文件、图表源数据以及处理代码。上述数据被用于评估降雨诱发的物理结壳如何改变干燥过程中近表层孔隙拓扑结构、孔隙孤立性与拉伸应变局部化特征。本数据包仅包含可用的经处理与衍生数据，而非完整的原始XCT存档；未提供原始大体积XCT投影数据、完整重建灰度体积文件以及完整的Avizo/Dragonfly项目文件。