The effect of the ash-tree (Fraxinus angustifolia Vahl) crown on characteristics of throughfall and stemflow solutions was assessed in wet pastures located in north eastern Portugal. The amounts de gross rainfall, throughfall and stemflow were measured continuously and samples were periodically collected to determine pH, dissolved organic C (DOC) and N (DON), and nutrients. The annual fluxes of DOC, DON, Cl, K,...
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