Hydrological and geochemical data from soils, natural waters and plants in the Kervidy-Naizin catchment, Britanny, France

This publication contains the dataset of the manuscript submitted to Biogeosciences Discussions entitled "Quantifying the agricultural footprint on the silicon cycle: Insights from silicon isotopes and Ge/Si ratios" by López-Urzúa et al. This dataset presents geochemical data and discharge data from the Kervidy-Naizin catchment, which is part of the ORE ArgHys observatory and the National Research Infrastructure “Observatoires de la Zone Critique: Applications et Recherche” (OZCAR) of the French “Centre National de la Recherche Scientifique” (CNRS). The presented data are originally contained in López Urzúa, S. (2024), Isotopic tracer constraints on concentration-discharge relations in the Critical Zone [Doctoral dissertation, Université Paris Cité, Institut de Physique du Globe de Paris] and in Fovet, O. (2023), Plan de gestion de données de l'observatoire ORE AgrHyS. [INRAE, https://hal.inrae.fr/hal-04707622] Contents Table 1. Analyses of stream, soil solution, and groundwater samples in the Kerdivy-Naizin catchment Table 2. Analyses of soil and rock samples in the Naizin Kervidy catchment Table 3. Silicon isotopes and Ge/Si signatures in leaf samples from the Kervidy-Naizin catchment Table 4. Silicon concentration and discharge data at the outlet of the Naizin-Kervidy catchment complied from López-Urzúa, S. (2024) and Fovet, O. (2023) Table 5. Hourly discharge data from 2000 to 2022, complied from Fovet, O. (2023)