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Investigation on the effects of crown canopy of trees on pasture yield and quality of understory vegetation in central Zagros

1. M. Tashakori zadeh*
2. S.H. Matinkhah2 
1 Instrutor of Payame Noor University, I. R. Iran 
2 Assistant Prof., Faculty of Natural Resources, Isfahan University of Technology, I. R. Iran 
 (Received: 8 August 2009, Accepted: 13 December 2009) 
 
Abstract 
The western forests of Iran are among the richest biological resources and their understory vegetation is the 
main source of forage for rural and nomadic livestock. So these forests are the focus of animal husbandry in 
Iran. Pasture yield and quality were compared between zones under trees and open areas near the trees. Trees 
affected pasture quality and yield. In this study, two species of trees were studied: Quercus brantii lindl and 
Acer monspesulanum. These trees influenced pasture yields grown under the trees. Pasture yields in open 
areas near the trees (without trees land) were greater than under trees but forage quality factors were higher 
under trees than in open areas. These results indicate that, while removing trees may enhance pasture 
productivity, this benefit may be offset by a reduction in pasture quality. 
 
Key words: Agroforestry, Pasture cover, Pasture quality, Pasture yield, Zagros, Forest. 
Journal Papers
Month/Season: 
Winter
Year: 
2009
File: 

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