نتایج جستجو برای: depletion of water resources

تعداد نتایج: 21232585  

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2012
Juana Paul Moiwo Wenxi Lu Fulu Tao

Water storage depletion is a worsening hydrological problem that limits agricultural production in especially arid/semi-arid regions across the globe. Quantifying water storage dynamics is critical for developing water resources management strategies that are sustainable and protective of the environment. This study uses GRACE (Gravity Recovery and Climate Experiment), GLDAS (Global Land Data A...

Journal: :مهندسی بیوسیستم ایران 0
اله یار محمدی برسری کارشناس ارشد مدیریت، دانشکده کشاورزی، دانشگاه آزاد اسلامی واحد رشت، رشت، ایران سعید فیروزی دانشگاه آزاد اسلامی واحد رشت هاشم امین پناه گروه زراعت، واحد رشت، دانشگاه آزاد اسلامی، رشت، ایران

iran is among the biggest emitters of greenhouse gasses in the world. agricultural sector has a remarkable role in non-renewable energy consumption and then, the environmental impacts in this country. in this regard, the environmental impacts of watermelon production as the most important melons produced in guilan province of iran were investigated through the life cycle assessment (lca) approa...

Journal: :international journal of environmental research 2009
d. nasr m.a. massoud r. khoury v. kabakian

significant damages incurred across lebanon during the july 2006 war encompassing the destruction of road networks, bridges and overpasses as well as a vast number of dwelling units. it is anticipated that reconstruction works after the war shall unavoidably create a newly founded demand for natural resources, most notably primary and secondary construction material. this paper assesses the war...

Journal: :محیط زیست طبیعی 0
حمزه میرحاجی کارشناس ارشد مکانیزاسیون دانشگاه فردوسی مشهد مهدی خجسته پور دانشیار گروه ماشین های کشاورزی، دانشگاه فردوسی مشهد محمدحسین عباسپورفرد دانشیار گروه ماشین های کشاورزی، دانشگاه فردوسی مشهد

life cycle study of a product is an accepted method for determining the side effects of its production process on environment during its complete life cycle. in this research, the impacts of global warming, acidification, terrestrial eutrophication and fossil resources depletion per unit yield of wheat (ton) on environment were investigated using life cycle assessment method in marvdasht region...

2013
T. Haque

The term ‘resource use efficiency in agriculture’ may be broadly defined to include the concepts of technical efficiency, allocative efficiency and environmental efficiency. An efficient farmer allocates his land, labour, water and other resources in an optimal manner, so as to maximise his income, at least cost, on sustainable basis. However, there are countless studies showing that farmers of...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان 1389

wireless sensor networks (wsns) are one of the most interesting consequences of innovations in different areas of technology including wireless and mobile communications, networking, and sensor design. these networks are considered as a class of wireless networks which are constructed by a set of sensors. a large number of applications have been proposed for wsns. besides having numerous applic...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم تربیتی و روانشناسی 1391

the purpose of this study was to examine the status of supervision on departments’ heads at ferdowsi university of mashhad (fum) and realize some applied themes to provide a fit model for supervising departments’ heads in fum. the method was case study under a research category aimed for applied one. using purposive sampling, interviews were conducted with top fum managers, head departments, an...

عالمی‌سعید, خلیل, بخـشنده, عبدالمهدی, بهنام‌فر, کورش, سـیادت, سید عطااله, کاشفی‌پور, سید محمود , ‌اشرف جعفری, علی,

In order to investigate the effect of water deficit on yield and morphological characteristics of four alfalfa cultivars an experiment was conducted as a split plot in randomized complete block design with 3 replications in Agriculture Research Center of Khuzestan, Ahwaz, Iran, during 201l-2012. Main plots included irrigation regimes (normal irrigation, irrigation at 50% available water content...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی 1389

the quest for power has formed much of the world history especially in 20th and 21st centuries. oil (energy) particularly after industrial revolution has been a tool for conquest and power and has been transformed to a geopolitical issue. from a geopolitical point of view this has been the case for the last two centuries in central asia and caucasus. central asia and caucasus has always been...

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