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- فارسی
Microclimate effects of trees on the soil qualification and specification in understory
Abstract
Western forests of Iran are one of the richest biological resources in Iran. They are very
important in soil protection and Soil erosion control. The main purpose of this study is to
evaluate the effects manner and intensity of the woody covers on the soils in the understory.
The present study has been done on Pashandegan enclosed rangeland which is situated in
Dez watershed. The whole study area divided into four sections; two altitudinal sections and
two forest species sections. Sample number of each section was determined based on
vegetative parameters. In order to decide about the number of trees the variance in the pilot
samples were used. Soil qualification and specification and its changes in understory of the
trees an also in the open space was determined by sampling up to 30 cm in two depth of the
soil. The results show that soil organic matter percentage and absorbable phosphate in either
of the depth below the trees coverage is more than the open space. It is because of the trees
litter and positive effect of microclimate in the understory and also better nutrient cycling.
Keywords: Zagros forests, understory soil, microclimate, Pashandegan
Conference Papers
Month/Season:
Summer
Year:
2012
File:
