نتایج جستجو برای: fragile and unsustainable areas controlling green spaces changes process
تعداد نتایج: 17092338 فیلتر نتایج به سال:
land use changes are one of the important consequences of urban spatial extent. regarding the role of green space as one of important land use classes in urban ecosystems, the investigations of its changes seem to be crucial. in this study, to estimate the changes of green space, the ndvi index was applied to tm and irs images of 1990 and 2006 and green space maps of district 1 of tehran munici...
Plants as the life giving entities have important role in mental and physical health of human. In the modern time with expansion of the cities and increase of industrial centers and living style change and decrease of social negligence about green spaces as the factor for mental diseases, altogether have been propounded for many psychologists and physicians. In this way considering green space...
rivers and runoff have always been of interest to human beings. in order to make use of the proper water resources, human societies, industrial and agricultural centers, etc. have usually been established near rivers. as the time goes on, these societies developed, and therefore water resources were extracted more and more. consequently, conditions of water quality of the rivers experienced rap...
Introduction: The city as a living system and a dynamic structure has shown a flexible attitude to the challenges ahead and has been constantly trying to overcome the challenges and reproduce its elements to become efficient and usable in the future. In the face of the corona pandemic challenge, the city has acted in the same way, shown reciprocal behavior, and tried to overcome this crisis eff...
given the critical role played by urban green spaces and the emergence of remote sensing as avaluable natural resource management tool, this study sought to identify trends in green spaces within thecontext of south africa’s transition period (1990 - 2000). using the city of port elizabeth as a case study, threesets of landsat - 5 thematic mapper images (1990, 1995 and 2000) were geo-processed,...
abstract this research is about a longitudinal case study of english morpheme acquisition by a persian speaking child l2 learner of english (2 .9-3).the goal of this research has been discovery of the child ‘s ability in acquiring of english morphemes in a persian context while only one person (the child’ s father)has been talking to her.this child has also been exposed to english languag...
The dam, as one of the hydrological structures, has imposed to rural areas many debates and problems on population deployment, the type and quality of livelihoods, and how to exploit natural resources such as water and soil. Recognizing and analyzing these effects in describing the unsustainable rural development process and the necessity of its transformation with regard to the dominant positi...
Previous studies have shown that contact with urban green spaces can produce positive effects on people's stress, health and well-being levels. However, much of this research has been conducted in the temperate regions of Europe or North America. Additionally, most studies have only compared the effects of urban and natural areas on health and well-being, but not made a finer distinction betwee...
Irregular and unstable urban development has increased marginalization, destruction of urban green areas and increased demand for urban land, which in itself has led to the disappearance of urban green spaces and land use change of such lands and is possible. Cause certain global environmental problems such as the formation of urban heat islands, because urban green space is one of the importan...
this paper identifies effective criteria in locating urban parks land use in district 9 of mashhad. this recognition is in three scale of neighborhood, local and regional with emphasis on the principles of minimum distance.finally, surveying the potential of district 9 to build these kind of parks is the main purpose. therefore, by using document anf field research method ,first we survey the l...
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