نتایج جستجو برای: urban services boundary

تعداد نتایج: 616388  

Journal: :Journal of environmental management 2013
Izaskun Casado-Arzuaga Iosu Madariaga Miren Onaindia

Peri-urban ecosystems are often managed as recreation areas or to enhance aesthetic value on the urban fringe. Scholars and land-use practitioners lack a current understanding of the supply of and the demands for these peri-urban ecosystem services (ES). In this study, we analysed the perceptions of 500 users and interest groups regarding the ES provided by the Bilbao Metropolitan Greenbelt (BM...

Journal: :Nature communications 2016
Serdar Çolak Antonio Lima Marta C González

Rapid urbanization and increasing demand for transportation burdens urban road infrastructures. The interplay of number of vehicles and available road capacity on their routes determines the level of congestion. Although approaches to modify demand and capacity exist, the possible limits of congestion alleviation by only modifying route choices have not been systematically studied. Here we coup...

2004
A. Kuchin A. Baklanov

Introduction Conclusions References Tables Figures Back Close Abstract Introduction Conclusions References Tables Figures Back Close Abstract The urban boundary layer (UBL), in comparison with " rural " homogeneous atmospheric boundary layers, is characterised by greatly enhanced mixing, resulting from both the large surface roughness and increased surface heating, and by horizontal heterogene-...

Journal: :محیط شناسی 0
فرانک سیف الدینی دانشگاه تهران ، دانشیار دانشکدة جغرافیا حسین منصوریان دانشجوی دکترای جغرافیا و برنامه ریزی شهری، دانشکدة جغرافیا، دانشگاه تهران

one of the indicators of sustainable urban growth is the balance of development between different regions of the city, quality of the environment, equality in job opportunities, housing, basic services, social infrastructures, and transportation in urban areas. urban sprawl has some negative consequences. some of the consequences that are frequently mentioned are destroying green spaces, high c...

2010
Henrik Ernstson Stephan Barthel Erik Andersson Sara T. Borgström

Urban ecosystem services are crucial for human well-being and the livability of cities. A central challenge for sustaining ecosystem services lies in addressing scale mismatches between ecological processes on one hand, and social processes of governance on the other. This article synthesizes a set of case studies from urban green areas in Stockholm, Sweden—allotment gardens, urban parks, cemet...

2012
E. J. Cilliers

It is the living conditions in the cities that determine the future of our livelihood. “To change life, we must first change space”Henri Lefebvre. Sustainable development is a utopian aspiration for South African cities (especially the case study of the Gauteng City Region), which are currently characterized by unplanned growth and increasing urban sprawl. While the reasons for poor environment...

The boundary of quarter is among the subjects that have been widely addressed in urban planning and urban design research. Clearly, several studies have examined the issue of “quarter boundaries in the historical fabric of Iranian cities”, but the literature review shows that there are still ambiguities in this regard. There are two contradictory answers to this issue: one group of studies ...

2016
Jiyun Song Zhi-Hua Wang

Urban land–atmosphere interactions can be captured by numerical modeling framework with coupled land surface and atmospheric processes, while the model performance depends largely on accurate input parameters. In this study, we use an advanced stochastic approach to quantify parameter uncertainty and model sensitivity of a coupled numerical framework for urban land–atmosphere interactions. It i...

Journal: :تحقیقات جغرافیایی 0
اصغر ضرابی دانشگاه اصفهان اصغر ضرابی دانشگاه اصفهان میرنجف موسوی دانشگاه ارومیه میرنجف موسوی دانشگاه ارومیه

â  the purpose of this study is investigation of relationship between population dispersion and distribution of services in urban area of yazd city. descriptive-analytic methodology was used in this study according to physical devising housing and urbanization organization. yazd city is comprised of 11urban areas, with areas of 13415 (ha) and 447259 population spatial distribution of population...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده اقتصادو علوم اجتماعی 1390

today, the route for economic development in most countries is the same as international open competitive economy. economic institutes well known that supportive public economy belonged on the past and they may compete in the global economy. it is obvious that if they have no competitive potency or not familiar with competition technique, they may be devastated. banking system aims to collect t...

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