نتایج جستجو برای: spatial structure

تعداد نتایج: 1872091  

Journal: :معماری و شهرسازی آرمان شهر 0
musa pazhuhan ph.d candidate in geography and urban planning, faculty of geography, tehran university, tehran, iran. ahmad pourahmad professor of geography, faculty of geography, tehran university, tehran, iran. ahmad saeednia retired professor of geography, faculty of geography, tehran university, tehran, iran. karamatoola ziari professor of geography, faculty of geography, tehran university, tehran, iran. mehdi gharakhlou retired professor of geography, faculty of geography, tehran university, tehran, iran.

metropolitan regions as a result of the steady stream of urbanization in industrial period which have occurred during 20th century, become the engine of countries growth and development. in the process of formation and development in these areas, spatial structuring that define through two elements of population and activity with the communication structure interacting between them, has been ef...

Journal: :پژوهش های جغرافیای انسانی 0
مجتبی رفیعیان دانشیار گروه شهرسازی دانشگاه تربیت مدرس آزاده علیزاده کارشناس ارشد برنامه ریزی شهری دانشگاه تربیت مدرس علی اکبر تقوایی دانشیار گروه شهرسازی دانشگاه تربیت مدرس

introduction one of the critical issues associated with sustainability in the twenty-first century is how cities are growing and developing in the space. rapid urban growth and physical development of cities cause disintegration of the spatial organization of cities and consequently spatial inequality between urban spaces. this phenomenon can be considered as spatial segregation or fragmentatio...

The spatial structure of cities has been one of the influential elements in the development of cities in different periods.In the cities of Iran,the spatial structure of cities is sometimes organic and during the lifetime of cities ,based on the requirements of the times,such as socio_social needs and their religious-religious ideology,and in many cases,this structure is based on programs and g...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم کشاورزی و منابع طبیعی گرگان - دانشکده جنگلداری و مهندسی چوب و کاغذ 1391

درک الگوی توزیع مکانی ماکروفون خاک بدلیل اثرات آن روی فرآیندهای اکوسیستم بسیار مهم است. لیکن اطلاعات کمی در این خصوص وجود دارد. درمورد تنوع زیستی ارگانیسم ها وجانداران خاکزی که ازاجزای مهم وکلیدی درهرسیستم اکولوژیکی هستند و در بهبود حاصلخیزی خاک و تولیدات زمین وپایداری اکوسیستم ها(ازطریق فرآیندهای بیولوژیک)نقش عمده دارند تحقیقات کمی انجام شده است. این تحقیق جهت بررسی الگوی مکانی پارامترهای تنوع...

According to several types of research, one of the most important issues and principles of sustainable development that urban professionals pay attention to it recently is Just City. One aspect of Justice in cities, spatial justice, has particular significance by Unequal and discordant Expanding in cities regarding creating unequal areas. On the other hand, the urban spatial structure affects t...

Journal: :اقتصاد و توسعه کشاورزی 0
فاطمه کشیری کلایی سید علی حسینی یکانی سید مجتبی مجاوریان

introduction: market power is an important factor affecting welfare. existence of market power on the purchase side reduces supplier welfare. however, existence of market power on the sales side reduces supplier welfare. some believe that the agricultural market structure is a monopoly. in fact, most of the agricultural products can be purchased by small firms and then delivered to consumers be...

دیوسالار, اسداله, رنجبر, زینت, غلامیان آقامحلی, طاهره, قدمی, مصطفی,

The spatial structure of a city is the result of current spatial processes in a city and in a long run, has close relationship with the efficiency of urban development. Such a concept has a significant effect on the quality of competitiveness, livability, desirability, and the environmental invulnerability of the cities. In this regard, formulating a sustainable spatial structure depends on suc...

صیاد, احسان, غلامی, شایسته,

In Zagros forest ecosystem, spatial variability of soil and vegetation properties are controlled by series of physical and biological parameters including topographical and anthropogenic factors. Distribution patterns of these properties are greatly variable. In the current study, geostatistics and fractal theory were used to assess the spatial variability of tree canopy and soil bulk density i...

Background and objective: The spatial structure of cities depends on the different and mutual relationships of all forces and factors in the city. These factors include market forces, activities, urban infrastructures and various services, which always have a complex and reciprocal relationship. In today's world, one of the basic challenges in cities is to create a balanced spatial structure th...

Functional and structural changes of regional system are ongoing spatial changes that form patterns of spatial organization, depending on dominant regional forces and factors. Spatial structure of West Azerbaijan province experienced significant changes during 15 years; thus, the present research aim to investigate the manner of spatial distribution of two variables of population and activity, ...

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