نتایج جستجو برای: climate conditions

تعداد نتایج: 994343  

Azad ahmadi Behroz Aminzadeh Mohammad Reza Najafian Gorgi Moslem Torkiharchegani,

Climate is one of the most important factors that influence the quality and quantity of crops. Understanding the natural features of any region, especially about the climate, can play a major role in making plans and land use planning. Sugar beet, is one of the major industrial plants, that in addition to producing one of the most fundamental basic needs of society, namely sugar, it can have ot...

2009
Bethany A. Bradley David S. Wilcove

Most ecologists believe that climate change poses a significant threat to the persistence of native species. However, in some areas climate change may reduce or eliminate nonnative invasive species, creating opportunities for restoration. If invasive species are no longer suited to novel climate conditions, the native communities that they replaced may not be viable either. If neither invasive ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1390

in this thesis, a better reaction conditions for the synthesis of spirobarbiturates catalyzed by task-specific ionic liquid (2-hydroxy-n-(2-hydroxyethyl)-n,n-dimethylethanaminium formate), calcium hypochlorite ca(ocl)2 or n-bromosuccinimide (nbs) in the presence of water at room temperature by ultrasonic technique is provided. the design and synthesis of spirocycles is a challenging task becaus...

2013
Peter D. Howe Anthony Leiserowitz

This paper explores the phenomenon of local climate perception and the extent to which public perceptions match climate conditions as recorded in instrumental climate data. We further examine whether perceptions of changes in local climates are influenced by prior beliefs about global warming, through the process of motivated reasoning. Using national survey data collected in the United States ...

2010
Sarah E. Null Joshua H. Viers Jeffrey F. Mount

This study focuses on the differential hydrologic response of individual watersheds to climate warming within the Sierra Nevada mountain region of California. We describe climate warming models for 15 west-slope Sierra Nevada watersheds in California under unimpaired conditions using WEAP21, a weekly one-dimensional rainfall-runoff model. Incremental climate warming alternatives increase air te...

Journal: :Annual review of entomology 2016
Carla M Sgrò John S Terblanche Ary A Hoffmann

Plastic responses figure prominently in discussions on insect adaptation to climate change. Here we review the different types of plastic responses and whether they contribute much to adaptation. Under climate change, plastic responses involving diapause are often critical for population persistence, but key diapause responses under dry and hot conditions remain poorly understood. Climate varia...

Journal: :اقتصاد و توسعه کشاورزی 0
صادق خلیلیان کتایون شمشادی سید ابوالقاسم مرتضوی مجید احمدیان

agricultural sector will be most affected by climate change due to its extensive interaction with the environment. and as a result of changing production conditions, community welfare is changed. this study attempted at understanding the welfare effects of changes in climate parameters on the wheat product. therefore, the yield functions were initially estimated. supply, demand and import funct...

Journal: :Selected Scientific Papers - Journal of Civil Engineering 2019

Journal: :Nucleation and Atmospheric Aerosols 2022

The studies were carried out in the steppe zone of West Kazakhstan. object research was planting potatoes an irrigated area. An analysis climate change towards warming revealed increase heat supply during warm period year. sum positive air temperatures above +10 °С this 3251.1 °С, and duration vegetative 172 days. Under conditions increasing, experiments made for obtaining possibility two crops...

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