The goal of this research was to quantify rainfall interception (I) in a mature semirid Cupressus arizonica stand afforested in the Chitgar Forest Park near Tehran city, Iran. Measurements of gross precipitation (GR) and through fall (TF) were recorded on an event basis from September 2011 to April 2012. For the measurement period, GR totaled 218.1 mm and I totaled 73.1 mm. I was calculated as the difference between GR and TF. On the event-based scale, the ratio of I:GR ranged between 1.3% and 97.2%, and averaged 36.8%. There was a strong logarithmic correlation between I:GR and GR (R2 = 0.650; P value ≤ 0.01). As the amount of rainfall events increased, I:GR decreased. The results indicate that intercepted rainfall represents a considerable portion of GR in P. eldarica afforested regions of the semiarid climate zone of Iran.
کلید واژگان :Afforestation, Cupressus arizonica, Estimation, Iran
ارزش ریالی : 600000 ریال
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