نتایج جستجو برای: ecological urban landscape

تعداد نتایج: 325625  

Journal: :آمایش سرزمین 0
مهدی ایرانخواهی دکتری محیط زیست- ارزیابی و آمایش سرزمین، دانشکدة محیط زیست و انرژی، دانشگاه آزاد اسلامی- واحد علوم و تحقیقات، تهران، ایران سیدعلی جوزی دانشیار، دانشکدة فنی و مهندسی، دانشگاه آزاد اسلامی- واحد تهران شمال، تهران، ایران

the present study has been conducted on shemiranat county landscape, using lattice hexagon approach, for the first time, in order to achieve homogeneous units in degradation model. to this aim, with respect to the extent of the studied area, a lattice hexagon composed of 36 units (cells) was created and each grid cell was considered as a sub landscape. next, ecological vulnerability, degradatio...

Journal: :ecopersia 2013
hamid reza kamyab abdolrassoul salman mahiny

logistic regression (lr) was used to model urban growth between the years 1987 and 2001 in gorgan city, north east of iran. three groups of variables including economic-social, land use and biophysical variables were used in the modeling practice. using covariance of the independent variables, distance to administrative and sporting centers plus distance to cities were removed. roc (relative op...

Journal: :international journal of environmental research 0
s. rasouli graduate faculty of environment, university of tehran, p.o. box 14155-6135, tehran, iran m. makhdoum farkhondeh faculty of natural resources, university of tehran, p.o. box 4111, karaj , iran h.r. jafari graduate faculty of environment, university of tehran, p.o. box 14155-6135, tehran, iran r. suffling faculty of environment, university of waterloo, 200 university avenue west, waterloo, on n2l 3g1, canada b. kiabi faculty of biological science, shahid beheshti university, p.o. box 1983963113, tehran, iran a.r. yavari graduate faculty of environment, university of tehran, p.o. box 14155-6135, tehran, iran

identification of rapid degradation of ecological resources requires effective environmental monitoring including ecological integrity assessment .our first aim is to analyze ecological integrity in a landscape context while developing a method to assess integrity in spite of a dearth of historical data. we used a spatial-temporal reference framework for land cover maps for assessing ecological...

Journal: :AGIT Journal 2016
Ulrich Schumacher Iris Lehmann Martin Behnisch

Compactness, efficiency and environmental quality are perceived as key topics of sustainable urban development. Density and green infrastructure can be a complementary accomplishment. Based on this issue, a complex methodological approach for spatial analysis of large and medium-sized cities was developed. In addition to spatial basic parameters, modified indices of the landscape ecological str...

Journal: :علوم و تکنولوژی محیط زیست 0
صدیقه سروری سید جمال فرج اله حسینی سحر ده یوری

urban population is growing rapidly and also its requirements are growing fast. this problem needs further attention on sustainability urban landscape. citizen’s participation and gradual cultural change considered among the best methods for developing and conserving the urban landscape. the aim of this study was to assess the impact of extension and education classes of plant clinics on sustai...

Journal: :ISPRS Int. J. Geo-Information 2015
Jihong Dong Wenting Dai Guoquan Shao Jiren Xu

With economic growth and the improvement of the urbanization level, human activities have constantly interfered with landscape patterns, resulting in serious threats to regional ecological security. Therefore, it is of great significance to study the evolution and optimization of the landscape patterns. Based on three TM images from 1990, 2000, and 2010, and selected landscape pattern indexes, ...

Journal: :منظر 0
فردریک پوزن استاد / مدرسه ملی عالی معماری پاریس- بل ویل.

the present research with historical and epistemological dimensions, firstly studies the perception of urban landscape and its position in environmental interventions and also as a tool for analyzing the city during three temporal periods from 1960 till 1980; then by surveying the works in the fields of photography and cinema, studies the position of artistic visualization in urban landscape. t...

Journal: :The American naturalist 2001
C C Vos J Verboom P F Opdam C J Ter Braak

Nature conservation is increasingly based on a landscape approach rather than a species approach. Landscape planning that includes nature conservation goals requires integrated ecological tools. However, species differ widely in their response to landscape change. We propose a framework of ecologically scaled landscape indices that takes into account this variation. Our approach is based on a c...

2014
Ebenezer Howard

Urban greenery remains the bastion of urban landscape and a key to sustainable development due to its integral connections to the general health and wellbeing of urban residents. However, in an era of rapid urbanisation, recent studies indicate that urban greenery, especially ecologically sensitive areas, in many African cities is becoming increasingly depleted. Given the scale and rate of natu...

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