IHSS&IWA26 / BRNO / CZECHIA / 23–28 August 2026 BOOK OF ABSTRACTS 210 Poster Session / NOM and Aquatic Systems Hall A under simulated rainfall conditions. Taken together, this study deepens our understanding of the fate, stability, and environmental implications of BC in contrasting soil environments, and informs the development of sustainable BC management strategies in the context of future climate scenarios. References 1. Nayak, S., Takemi, T. Regional and vertical scaling of water vapor with temperature over Japan during extreme precipitation in a changing climate. Sci Rep 15, 34826 (2025). https://doi.org/10.1038/s41598-025-22287-6 2. Zhao, K., Shang, J. Optical and molecular insights into dissolved organic matter release in soils induced by downward migration of biochar colloids. Carbon Res. 3, 51 (2024). https://doi. org/10.1007/s44246-024-00136-x 3. Mitschke, N., Vemulapalli, S.P.B. & Dittmar, T. NMR spectroscopy of dissolved organic matter: a review. Environ Chem Lett 21, 689–723 (2023). https://doi.org/10.1007/s10311-022-01528-4 Acknowledgement This work was supported by the EU through the TwinSubDyn project (Grant Agreement No: 101059546). The authors thank the Soil Science group at Kobe University for providing laboratory facilities and equipment, and the IHSS for the training award that funded travel and living expenses during the research stay.
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