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Xylem hydraulic safety and efficiency are key traits determining tree fitness in a warmer and drier world. While numerous plant hydraulic studies have focused on branches, our understanding of root hydraulic functioning remains limited, although roots control water uptake, influence stomatal regulation and have commonly been considered as the most vulnerable organ along the hydraulic pathway.
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Plant hydraulic traits are key for understanding and predicting tree drought responses. Information about the degree of the traits’ intra‐specific variability may guide the selection of drought‐resistant genotypes and is crucial for trait‐based modelling approaches.
For the three temperate minor broadleaf tree species Acerplatanoides, Carpinus betulus and Tilia cordata, we measured xylem embolism...
Key message For three widespread European Acer species with different climate envelopes, hydraulic traits, but not wood anatomical or leaf morphological traits, were good indicators for habitat preferences. Abstract Prediction of drought impacts on trees requires knowledge about species differences in hydraulic traits and how the hydraulic constitution changes along water availability gradients...
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