Trees can improve air quality, but at the same time, pollution might put them at risk. Plane(Platanus orientalis L) and willow trees (Salix babylonicaL) are important trees in the green space of Tehran. Plane trees in Tehran have experienced early autumn in recent years due to severe air pollution. The present study, investigated some physiological traits of these trees under study to determine...

A growing body of research shows positive association between parks and physical activity, but very few studies have investigated the characteristics of users and how the activities vary according to different user groups. The purpose of this study was to investigate the socio-demographic profile of the users, their activities and motivation of visiting the park. Total 400 users of Ramna Park w...

iranian women who, in the traditional conditions of the past and norms of the iranian society, have had a limited access to the public spaces of the city, with the changes taken place in our modern day society and factors such as education, employment and so on. nowadays, they have distinguished themselves in various fields and introduced their own issues and concerns to the society. however, i...

Boujagh National Park is the first founded land-marine national park in Iran and the first national park in Gilan Province, N. Iran. This area is a critical refuge for a lot of migratory birds and so many valuable coastal flora and fauna. The present study revealed that, the flora of this area comprises 248 vascular plants and 10 bryophytes out of which six taxa are endemic for the flora of Ira...

Abstract Urban parks are important public multifunctional space used for a wide range of activities. The usage levels of parks depend on the spatial characteristics of the spaces, where its forms and occupancies are referred as the usage-spatial relationship. Natural elements spatial complexity and park usability is of interest in this study. A photo - questionnaire was conducted among 296 of p...

parks and urban green spaces have always been places to spend hours away from the bustling life and its numerous problems. in the meantime, elderly people also have the same share from such spaces as other people. elderly, including old social groups with old age and decreasingly activities, have very leisure time and the possibility of using the urban park for voluntary and community activitie...

This paper is an addendum to [4], in which the authors constructed a simply connected minimal complex surface of general type with pg = 0 and K 2 = 3. Motivated by Y. Lee and the second author’s recent construction on a surface of general type with pg = 0, K 2 = 2 and H1 = Z/2Z [3], we extend the result to the K = 3 case in this paper. That is, we construct a new non-simply connected minimal su...