Articles | Volume 27, issue 15
https://doi.org/10.5194/hess-27-2865-2023
https://doi.org/10.5194/hess-27-2865-2023
Research article
 | 
01 Aug 2023
Research article |  | 01 Aug 2023

Routing stemflow water through the soil via preferential flow: a dual-labelling approach with artificial tracers

Juan Pinos, Markus Flury, Jérôme Latron, and Pilar Llorens

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Short summary
We investigated how stemflow (intercepted rainwater by the tree crown that travels down the stem) infiltrates within the soil. We simulated stemflow, applying coloured water along a tree trunk. Coloured patterns, observed when we excavated the soil after the experiment, were used to view and quantify preferential flow in the soil. We found that stemflow was mainly funnelled belowground along tree roots and macropores. Soil moisture near the trunk was affected both vertically and horizontally.