نتایج جستجو برای: rodna mountains national park

تعداد نتایج: 429388  

Journal: :international journal of environmental research 0
e. salehi graduate faculty of environment, university of tehran, p.o.box 14135-6135, tehran, iran l. zebardast graduate faculty of environment, university of tehran, p.o.box 14135-6135, tehran, iran a.r. yavri graduate faculty of environment, university of tehran, p.o.box 14135-6135, tehran, iran

fragmentation, or breaking apart of habitats, is one of the major causes of decline in biological diversity. mature ecosystems, especially dense forests are very sensitive to this phenomenon and roads are one of the major causes of fragmentation in forest landscapes. present investigation aims to trace landscape fragmentation in dense forests of golestan national park in northeast of iran betwe...

Journal: :international journal of environmental research 0

population growth and urbanization increase the demand for developing new roads. heavy traffic of the east of tehran imposes high pressure on transportation. network of this city and old road of tehran-rudehen does not meet this need. therefore, constructing the new highway (tehran – pardis) in the east of tehran would be needed. but the new highway passes through protected area of jajrood an...

2014
Kyle C. Cavanaugh J. Stephen Gosnell Samantha L. Davis Jorge Ahumada Patrick Boundja David B. Clark Badru Mugerwa Patrick A. Jansen Timothy G. O’Brien Francesco Rovero Douglas Sheil Rodolfo Vasquez Sandy Andelman

Smithsonian Institution, 647 Contees Wharf Road, Edgewater, MD 21037-0028, USA, Department of Ecology and Evolutionary Biology , Brown University, Providence, RI 02912, USA, Department of Ecology, Evolution, and Marine Biology, University of California, Santa Barbara, CA 93106, USA, Tropical Ecology Assessment and Monitoring Network, Moore Center for Ecosystem Science and Economics, Conservatio...

Journal: :علوم و تکنولوژی محیط زیست 0
مریم امیدی محمد کابلی محمود کرمی

numbers of persian leopards have considerably decreased in recent years and for this reason it has been categorized as endangered in the iucn classification. habitat destruction is believed to be the main cause of the species population decline. hence, attempts to preserve the remaining habitats of this kind of animal effectively are deemed essential in reversing its downgrading trend. to hit t...

Journal: :محیط زیست طبیعی 0
آمنه نیکبختی کارشناس ارشد محیط زیست دانشگاه علوم کشاورزی و منابع طبیعی گرگان سید حامد میرکریمی استادیار محیط زیست دانشگاه علوم کشاورزی و منابع طبیعی گرگان مژگان میرزایی کارشناس ارشد محیط زیست دانشگاه علوم کشاورزی و منابع طبیعی گرگان

this is a year field study to evaluate the recreational needs of visitors bamu national park. bamu national park has the potential ecotourism capabilities to attract ecotourist which should be utilizing of this ability in regional planning. in this study clawson method used that one of the most common methods of evaluation systems resorts in aware of the people comments. about 225 questionnaire...

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