The suitability of Aleppo pine trees to these climates has encouraged reforestation efforts utilising this species since the nineteenth century, accounting for approximately 5 105 ha of reforested land in Spain (Pemán García and Vadell Guiral,2009). However, most of the Aleppo pine stands growing as part of these reforestation programmes suffer from a lack of management, which is a result of the absence of sufficient economic incentives from their conventional forest products. This management vacuum leads to high-density forest stands that can exacerbate rainfall interception losses and contribute to a substantial decrease of river flows in forested watersheds (Gallart and Llorens, 2003)