Potassium limitation of wood productivity: A review of elementary processes and ways forward to modelling illustrated by Eucalyptus plantations

Potassium (K) is essential for a wide range of physiological functions in plants, and limiting element wood productivity numerous forest ecosystems. However, the contribution each K-sensitive processes to limitation poorly known. In trees, K deficiency acts both on source sinks carbon making it difficult disentangle its effects productivity. Here, we review literature dealing with influence K-limitation tree processes. Results from extensively studied tropical Eucalyptus plantations are used illustrate most impacted by deficiency. We identify main that limit availability trees circulation ions ecosystem. Then, describe bioavailability assimilation, water economy partitioning. conclude this identifying priorities towards process-based modelling cycles For process priority, options could be current conceptual framework eco-physiological models.