نتایج جستجو برای: urban forest etc among green spaces

تعداد نتایج: 1730756  

2017
Sohyun Park Audrey L. Mayer

Green spaces in residential communities are important yet understudied features of the urban ecological system. While large urban parks and remnant wildlands in urban areas tend to receive public attention from conservation and management perspectives, less is known about the importance of spatial and ecological characteristics of the community-scale green space. This study investigates natural...

Journal: :Journal of environmental management 2015
Camilo Ordóñez Barona

Urban trees are a dominant natural element in cities; they provide important ecosystem services to urban citizens and help urban areas adapt to climate change. Many rationales have been proposed to provide a purpose for urban forest management, some of which have been ineffective in addressing important ecological and social management themes. Among these rationales we find a values-based persp...

Journal: :تحقیقات جغرافیایی 0
محمدرضا پورمحمدی محمد جام کسری

â  regional and urban planning instruments contain an extensive range of concepts and methods. these methods are important for understanding the complex identity of cities and the prediction of their future. today majority of planners and urban planning authorities believe that the use of these methods can help us to better understand urban systems and predict their behavior. in this regard the...

Journal: :Remote Sensing 2011
Peter Hofmann Josef Strobl Ainura Nazarkulova

Within urban areas, green spaces play a critically important role in the quality of life. They have remarkable impact on the local microclimate and the regional climate of the city. Quantifying the ̳greenness‘ of urban areas allows comparing urban areas at several levels, as well as monitoring the evolution of green spaces in urban areas, thus serving as a tool for urban and developmental plann...

Journal: :محیط شناسی 0
طاهره کوخائی کارشناسی ارشد مهندسی طراحی محیط زیست، دانشکدۀ محیط زیست، دانشگاه تهران محمدرضا مثنوی دانشیار گروه مهندسی طراحی محیط زیست، دانشکدۀ محیط زیست، دانشگاه تهران

introduction the urban population experienced rapid growth in the recent decades, particularly between 1975 and 2000 when it has reached from 1.5 to more than 2 billion people. by turn of the century; half of the world's populations are concentrated in cities. this would severely affect the quality of life in urban areas. accordingly, cities will be faced with significant challenges in inf...

Bilal Ahmad Sadaf Saqlain,

Urbanization is the process in which green space (fields, trees, wetlands, etc.) is converted into black space (concrete and asphalt). Urbanization occurs because people move from rural areas to urban areas. This usually occurs when a country is still developing. Slums and its consequences of overcrowding lack of sanitation, global warming, air pollution, water pollution and loss of forest cove...

2010
Konstantinos TZOULAS Philip JAMES

Cultural services provided by green space networks and in particular leisure and recreational opportunities are central to the quality of life of those living in urban areas. However, the literature concerned with green space networks has mainly focussed on planning aspects rather than on recreational use. The aim of this study was to evaluate the recreational use of, and concerns about, a natu...

2007
Kathleen T. Ward Gary R. Johnson

Urban forests are unique and highly valued resources. However, trees in urban forests are often under greater stress than those in rural or undeveloped areas due to soil compaction, restricted growing spaces, high temperatures, and exposure to air and water pollution. In addition, conditions change more quickly in urban as opposed to rural and undeveloped settings. Subsequently, proactive manag...

Journal: :Int. J. Applied Earth Observation and Geoinformation 2014
Anne Puissant Simon Rougier André Stumpf

Since vegetation in urban areas delivers crucial ecological services as a support to human well-being and to the urban population in general, its monitoring is a major issue for urban planners. Mapping and monitoring the changes in urban green spaces are important tasks because of their functions such as the management of air, climate and water quality, the reduction of noise, the protection of...

2013
Abdullah Jamali

Literature indicates that comparative ratios provide ambiguous and inaccurate judgments in many cases. Quality forecasts have been relatively more successful when compared to quantitative estimates. The uncertainty in preferential judgment leads to uncertainty in classification of other options and difficulty in stabilization of preferences. The objective of this article was to study and evalua...

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