نتایج جستجو برای: main faults and protected areas also

تعداد نتایج: 16899977  

2003
J Hanks A M Attwell

Protected Areas (PAs) are fundamental for biodiversity conservation, for the provision of ecosystem services, and for tourism. In Africa, they are subject to increasing pressures of two kinds: objective factors, like high human fertility rates, that are generally not open to human manipulation, and subjective factors that are under human control. A major subjective component has been reduction ...

Journal: :محیط زیست طبیعی 0
منا عزیزی جلیلیان دانش آموخته کارشناسی ارشد محیط زیست، دانشگاه تهران، ایران افشین دانه کار دانشیار دانشکده منابع طبیعی، دانشگاه تهران، ایران آرش جوانشیر استادیار دانشکده منابع طبیعی، دانشگاه تهران، ایران حسین شعبانعلی فمی دانشیار دانشکده اقتصاد و توسعه کشاورزی، دانشگاه تهران، ایران افشین علیزاده استادیار دانشکده منابع طبیعی، دانشگاه تهران، ایران حمید گشتاسب میگونی استادیار دانشگاه محیط زیست، ایران

the protection and use of recreational areas as a sustainable resource can be a very significant issues, especially when they are located within a protected areas. different management approaches such as limits of acceptable changes (lac) can be performed to provide the balance between the use and the protection of resources. lac method is one of the planning frameworks that are used in tourism...

Journal: :محیط زیست طبیعی 0
آزاده مهری کارشناس ارشد محیط‏زیست، دانشگاه علوم کشاورزی و منابع طبیعی گرگان عبدالرسول سلمان ماهینی دانشیار گروه محیط‏زیست، دانشگاه علوم کشاورزی و منابع طبیعی گرگان سید حامد میرکریمی استادیار گروه محیط‏زیست، دانشگاه علوم کشاورزی و منابع طبیعی گرگان حمیدرضا رضایی استادیار گروه محیط‏زیست، دانشگاه علوم کشاورزی و منابع طبیعی گرگان

to preserve wildlife habitats and populations, it is normal practice to select representative natural areas. the aim of this research is prioritization of candidate sites for environmental protection in mazandaran province. for this purpose, 26 forest cover types, habitats of 8 mammal species and important distribution areas for 4 groups of birds were used as input criteria. simulated annealing...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده ادبیات و زبانهای خارجی 1393

for several years, researchers in familiarity of efl teachers with post-method and its role in second and foreign language learners’ productions have pointed out that the opportunity to plan for a task generally develops language learners’ development (ellis, 2005). it is important to mention that the critical varies in language teaching was shown is the disappearances of the concept of method ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده ریاضی 1389

one of the most important number sequences in mathematics is fibonacci sequence. fibonacci sequence except for mathematics is applied to other branches of science such as physics and arts. in fact, between anesthetics and this sequence there exists a wonderful relation. fibonacci sequence has an importance characteristic which is the golden number. in this thesis, the golden number is observed ...

Journal: :زیست شناسی جانوری تجربی 0

abstract caracal (caracal caracal) is a species of felidae which has a vast distribution in the central area ofiran. in this study, we gathered all records of caracal in yazd province during nine years (2002-2011). we also analyzed the results of intensive camera-trapping in 3 protected areas inyazd province. based on the results of the study 96 records of caracal were obtained in the study are...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند - دانشکده ادبیات و علوم انسانی 1392

in new management approaches, in the organizations with inflexible structure, existing of red tapes and interruptions caused by limitations and also non-compliance with environmental changes, create demotivation among staff. with regard to the influence of job motivational potential and its relationship to the type of organizational structure( enabling and dissuasive), the goal of this research...

Journal: :Current Biology 2010
Nigel Williams

at 700 studies into cloned food, the FDA said there was no evidence that produce from clones was harmful to health, " MailOnline (2 August) reported. " The FDA found no science-based reason to require labels to distinguish between products from clones and products from conventionally produced animals. " After ignoring the story for two days, other newspapers, as well as broadcasting media, did ...

Journal: :پژوهش های محیط زیست 0
صلاح الدین ابراهیم پور دانشجوی کارشناسی ارشد زمین شناسی محیط زیستی، مرکز تحقیقات آب های زیرزمینی (متآب)، دانشکده علوم، دانشگاه فردوسی مشهد حسین محمدزاده استادیار، مرکز تحقیقات آب های زیرزمینی (متآب)، دانشکده علوم، دانشگاه فردوسی مشهد

nowadays, the machinery dependent life makes the people take refuge in natural recreational places. therefore, evaluating the recreational value of natural promenades has great importance to lead to more protection. in this research, economic valuation of sorkheh hesar national park, and protected area of geno were computed, and socio-economic factors compared in each area. geno protected area ...

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