Ciclos biogeoquímicos en bosques de la Sierra de Béjar (Salamanca). Retorno de bioelementos por medio del agua de lluvia

Abstract

The annual return of bioelements by rainfall was estimated in afforested areas of scots pine (Pinus sylvestris L.) in the Candelario Basin (Central System, Spain). Of the total elements contributed to the soil in rainwater, most of the carbon, nitrogen, phosphorus, calcium, potassium, sodium and zinc enter the soil via throughfall, while only 10% do so through stemflow; 82% of the magnesium reaches the soil via throughfall and the rest by stemflow; manganese and iron do so at percentages of 70 and 30 % respectively, while the main contribution of copper is via stemflow (more than 60%).