نتایج جستجو برای: different climate zones ofiran especially climate factors and local variables are neither studied nor recognized hence

تعداد نتایج: 17323688  

2015
Yinghui Xiao

The Koppen Climate Classification system is one of the examples dissecting global climate process into uniform zones. Due to the fractal structure of geographic phenomenon, the classification of climate zones may be applied at different scales to promote further understanding of climate system at the human-environment interface. This research presents a workflow of classifying climate zones by ...

Journal: :Environmental pollution 2008
S Blenkinsop H J Fowler I G Dubus B T Nolan J M Hollis

A climatic classification for Europe suitable for pesticide fate modelling was constructed using a 3-stage process involving the identification of key climatic variables, the extraction of the dominant modes of spatial variability in those variables and the use of k-means clustering to identify regions with similar climates. The procedure identified 16 coherent zones that reflect the variabilit...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده ادبیات و زبانهای خارجی 1391

this study was intended to analyze the listening tapescripts of the elementary and pre-intermediate levels of total english textbooks from the pragmatic dimension of language functions and speech acts in order to see whether the listening tasks are pragmatically informative or not. for this purpose, 8 conversations from the two books were selected randomly, and then, the two pragmatic models of...

ژورنال: علوم آب و خاک 2010
حمیدرضا کریم‌زاده, , امیرحسین قره‌شیخلو, , محمدرضا وهابی, ,

In order to classify and determine the plant communities in Karkas mountainsides, central Iran, quantitative data of 46 environmental characteristics including climate (12 characteristics), soil (26 characteristics), geology and physiology (8 characteristics), were analyzed based on partial Euclidean distance indicator using minimum variation method. The results showed the clustered separation ...

2018
Ian R MacLachlan Sam Yeaman Sally N Aitken

Hybrid zones contain extensive standing genetic variation that facilitates rapid responses to selection. The Picea glauca × Picea engelmannii hybrid zone in western Canada is the focus of tree breeding programs that annually produce ~90 million reforestation seedlings. Understanding the direct and indirect effects of selective breeding on adaptive variation is necessary to implement assisted ge...

2015
Philip-Edouard Shay Richard S. Winder J. A. Trofymow

Microbes such as fungi and bacteria play fundamental roles in litter-decay and nutrient-cycling; however, their communities may respond differently than plants to climate change. The structure (diversity, richness, and evenness) and composition of microbial communities in climate transects of mature Douglas-fir stands of coastal British Columbia rainshadow forests was analyzed, in order to asse...

2015
Dong-Seok Lee Sung-Han Koo Byung-Yun Lee Marc A. Rosen

The energy performance of buildings depends on how effectively the building envelope responds to climate. Architects, therefore, need to design building envelopes with the consideration of local climate characteristics in the early design stage. Simplified formulas were used that evaluate the heating and cooling energy demand of building envelopes, which were applied to a model building with en...

Background: "motivation" is an influential factor in the learning process, whose absence can prevent the learner from learning. Motivation affects both new learning and performance, skills, strategies, and pre-learned behaviors. "Educational motivation" is an essential aspect of education and the learning process. Educational motivation is generally referred to as the desires, needs, and factor...

Journal: :محیط شناسی 0
پیمان گلچین کارشناس ارشد مهندسی طراحی محیط زیست دانشگاه تهران، عضو هیئت علمی گروه مهندسی فضای سبز دانشگاه سیستان و بلوچستان هما ایرانی بهبهانی دانشیار گروه مهندسی طراحی محیط زیست دانشکده محیط زیست، دانشگاه تهران

introduction  nowadays, landscape recounts the land components, elements and components which each alone and together have a key role in building and shaping the natural environment and consequently the natural landscape and eventually the built environment and landscape. although humans connection with its surrounding is achieved through different senses, but still more than 80% of its connect...

Zagros Mountains in west of Iran are covered by unique forests and rangelands. Increasing population, low level of development and high dependence of local people on natural resources for primary livelihood needs resulted in degradation of Zagros forests and rangelands. Along with these factors, since the last decade, climate change including severe drought is an important issue in the world, p...

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