مقایسه هدر رفت ربایشی در تاج پوشش درختان همیشه سبز و خزان‌کننده مورد استفاده در پروژه‌های جنگل‌کاری

This research was carried out in a reforest at ShirvanAgricultureCollegein two years (2005-2007). The aim of this research was to determine of canopy interception loss, throughfall and stemflow. Four trees species were used including pinus nigra, Cupressus sempervirens, Robinia pseudacacia and platanus orientalis with three replications. The results showed that the amount of canopy interception loss, throughfall and stemflow of pinus nigra and Cupressus sempervirens was 34.77, 63.73, 1.43 and 44.97, 53.08, 1.63 percent, respectively. These amounts for Robinia pseudacacia and platanus orientalis species were 9.78, 89.42, 0.8 and 5.5, 93.97, 0.53 percent, respectively. There was a significant difference in canopy interception loss between pinus nigra and Cupressus sempervirens (P<0.05). However, there was no significant difference (P<0.05) in interception loss between Robinia pseudacacia and platanus orientalis species. Furthermore, a significant difference (P<0.01) was observed in interception loss between evergreen and deciduous trees. The results showed that Cupressus sempervirens had the highest interception loss than other trees species.