نتایج جستجو برای: central zagros

تعداد نتایج: 471269  

Journal: :محیط شناسی 0
علی جعفری استادیار گروه علوم جنگل دانشکدۀ منابع طبیعی دانشگاه شهرکرد زهرا آرمان دانشجوی کارشناسی ارشد جنگل داری، دانشکدۀ منابع طبیعی و علوم زمین، دانشگاه شهرکرد علی سلطانی استادیار گروه علوم جنگل، دانشکدۀ منابع طبیعی و علوم زمین، دانشگاه شهرکرد علی لطفی هیات علمی دانشگاه صنعتی اصفهان

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 ...

Journal: :جغرافیا و مخاطرات محیطی 0
رضا صفایی راد قاسم عزیزی حسین محمدی حمید علیزاده لاهیجانی

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...

Journal: :Geophysical Journal International 2017

Journal: :journal of genetic resources 0
masoumeh jalali university of shahrekord, faculty of science, department of biology majid sharifi-tehrani department of biology, university of shahrekord hamze-ali shirmardi research institute of agriculture and natural resources, shahrekord

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...

Journal: :فیزیک زمین و فضا 0
نرگس افسری استادیار، گروه مهندسی عمران، دانشگاه آزاد اسلامی، واحد نوشهر، ایران فتانه تقی زاده فرهمند استادیار، گروه فیزیک، دانشگاه آزاد اسلامی، واحد قم، ایران محمدرضا قیطانچی استاد، گروه فیزیک زمین، موسسه ژئوفیزیک دانشگاه تهران، ایران اعظم سلیمانی کارشناس ارشد زلزله شناسی، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران، ایران

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...

Journal: :پژوهش های جغرافیایی (منتشر نمی‏شود) 0
جلال الدین رفیع فر استاد گروه انسان شناسی، دانشکده علوم اجتماعی، دانشگاه تهران حمیدرضا قربانی کارشناس ارشد، دانشگاه تربیت مدرس

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...

Journal: :desert 2015
iman babaeian raheleh modirian maryam karimian mahdi zarghami

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...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید