نتایج جستجو برای: central zagros
تعداد نتایج: 471269 فیلتر نتایج به سال:
introduction forest ecosystems have continuously downgraded due to every environmental pressure including climate change, aerosols deposits, industrial pollutions and other degradation factors. the output soon or late would be a different forest. forest monitoring is a well-regulated and usually long running procedure, which has the ability to detect these phenomena and reactions based on aims ...
1. introduction the zagros mountains present a great potential for paleo-environmental studies for the reconstruction climates of the late-pleistocene and holocene. iranian zagros mountains form the northeastern boundary of the fertile crescent and separating the mesopotamian lowlands from the iranian plateau. it is postulated that near east was a place for the domestication of plants and anima...
flora of jahanbin mountain area in chaharmahal and bakhtiari province, located between shahrekord and hafshejan cities, with 12’187 hectares and 2’150 to 3’300 m elevation above sea level, is investigated. vegetation of this area comprises of 273 species, 189 genera and 42 families. asteraceae (37 species, 13.5%), poaceae (31 species, 11.3%) and fabaceae (25 species, 9.1%) were the most importa...
study crust and upper mantle structure below the surface of earth is one of the important objectives of geophysics. teleseismic body waveforms have been used to infer crust and upper mantel structure. the iranian plateau is part of the alpine-himalayan orogenic belt. the zagros mountain belt in southwestern iran has resulted from the collision of arabian plate with the continental crust of cent...
abstract focusing on geographic and environmental factors, this article discusses recent recurring shifts in the mode of subsistence – from transhumant to sedentary pastoralism – observed among the bakhtiaris of central zagros. the article suggests that the evolutionary changes have been part of an adaptation strategy followed by bakhtiari communities in the face of new environmental conditions...
simulation of climate change in iran during 2071-2100 using precis regional climate modelling system
parameters such as future precipitation, temperature, snowfall, and runoff were modeled using precis regionalclimate modeling system in iran with the horizontal resolutions of 0.44×0.44°c in latitude and longitude under sresa2 and b2 scenarios. the dataset was based on hadam3p during the periods of 1961-1990 and 2071-2100. theoverall precipitation error of the model in the period of 1961-1990 w...
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