Geomorphological Processes and Human Impacts in River Basins (Proceedings of the International Conference held at Solsona, Catalonia, Spain, May 2004). IAHS Publ. 299, 2005, 31-36.


Runoff and soil moisture relationships in a small forested basin in the Sistema Central Ranges (Spain)

JOSÉ MARTÍNEZ-FERNÁNDEZ, ANTONIO CEBALLOS, SEGISMUNDO CASADO, CARLOS MORÁN & VIRGINIA HERNÁNDEZ

Department of Geography, University of Salamanca, Cervantes 3, 37002 Salamanca, Spain

jmf@usal.es

Abstract In the present work we analyse runoff yield in a small Mediterranean basin with respect to soil moisture dynamics. The aim was to observe the behaviour of the basin in terms of the generation of runoff in periods in which maximum water deficit occurs in the soil. Despite the abundant precipitation in the mountainous regions of the Mediterranean area, the joint action of the climatic conditions prevailing in the growing season and water interception and consumption by the forest may seriously affect the generation of runoff over a considerable part of the year.

Key words evapotranspiration; interception; Mediterranean climate; runoff yield; soil moisture; water deficit