Modeling Herbicides Movement in Railway Embankments in Germany

The input dataset for the groundwater contamination modeling project is structured to capture spatial, temporal, and chemical variability across five railway embankment sites in Germany: Burgdorf, Krefeld, Ingolstadt, Oftersheim, Weinböhla and a reference site (control with a homogeneous layer). Each site includes multiple simulation scenarios to reflect different herbicide application strategies and environmental conditions. The “site_12m” configuration represents full embankment-wide pesticide application, while “site_6m” simulates application limited to the upper 6 meters of the embankment. Temporal dynamics are incorporated through the “site_6y” setup, which spans six years of simulation time (2018–2024) to capture seasonal variation and long-term trends. For each site and scenario, selectors define the properties of four herbicidal compounds: glyphosate, its metabolite AMPA, flumioxazin, and flazasulfuron. These selectors include compound-specific parameters such as sorption coefficients, degradation rates, and mobility characteristics.本数据集为地下水污染建模项目的输入数据集，旨在捕获德国5处铁路路堤站点（布尔格多夫、克雷费尔德、因戈尔施塔特、奥夫特沙伊姆、魏因伯拉）及1处带有均质层的对照参考站点的空间、时间与化学变异性。各站点均包含多组模拟情景，用以反映不同除草剂施用策略与环境条件。其中"site_12m"配置代表全路堤范围的农药施用方案，"site_6m"则模拟仅局限于路堤上部6米范围内的施用场景。时间动态维度通过"site_6y"设置实现，该情景涵盖6年模拟时长（2018—2024），以捕捉季节波动与长期演变趋势。针对每个站点与情景，均通过选择器定义4种除草剂化合物的属性：草甘膦、其代谢产物AMPA、氟烯草酸以及氟磺隆。此类选择器包含化合物专属参数，如吸附系数、降解速率与迁移特性。