Rainfall interception loss (I) is the proportion of gross rainfall (GR) that is intercepted, stored and subsequently evaporated from the leaves, branches and stems of vegetation. Canopy storage capacity (S) is one of the important variables influencing I. Hence, I, and S are important components of the water balance in arid and semiarid climate zones. The aim of this project was to quantify S by using Mean method in a mature semiarid Pinus eldarica Medw afforestation planted in the Chitgar Forest Park near Tehran city, Iran. Measurements of GR and throughfall (TF) were recorded on an event basis from June 2012 to April 2013. For the measurement period, GR totaled 191.9 mm and I totaled 36.4 mm. I was calculated as the difference between GR and TF. The mean method estimated S to be 0.80 mm. Lack of information about I and S in arid climate zones needs further attention, particularly with respect to the planting of exotic trees in Iran. To help fill this knowledge gap, this research examines, for the first time, the influence of stand, exotic trees on I in afforested regions located in a semiarid climate zone.
کلید واژگان :Afforestation, Canopy storage capacity, Iran, mean method.
ارزش ریالی : 1200000 ریال
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