نتایج جستجو برای: ecosystem

تعداد نتایج: 83322  

Elahe Yaribeigi, Farhad Lashgarara Maryam Omidi Najafabadi Seyed Jamal Hosseini Seyed Mehdi Mirdamadi

Entrepreneurship in the world, especially in Western developed countries, the much interest in recent years the concept of entrepreneurial ecosystems and integrating the separation of infrastructure services needed by entrepreneurs and governments innovative citizens, industrialists and entrepreneurs to create. a person apart from the idea of an entrepreneur, long way to run and deliver it to t...

Journal: :international journal of advanced biological and biomedical research 2014
elahe yaribeigi seyed jamal hosseini farhad lashgarara seyed mehdi mirdamadi maryam omidi najafabadi

entrepreneurship in the world, especially in western developed countries, the much interest in recent years the concept of entrepreneurial ecosystems and integrating the separation of infrastructure services needed by entrepreneurs and governments innovative citizens, industrialists and entrepreneurs to create. a person apart from the idea of an entrepreneur, long way to run and deliver it to t...

Journal: :مرتع و آبخیزداری 0
امید اسدی نلیوان دانشجوی دکتری آبخیزداری، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، ایران محسن محسنی ساروی استاد دانشکده منابع طبیعی، دانشگاه تهران، ایران قوام الدین زاهدی امیری استاد دانشکده منابع طبیعی، دانشگاه تهران، ایران علی اکبر نظری سامانی استاد دانشکده منابع طبیعی، دانشگاه تهران، ایران

sustainability is a concept that emphasizes substantially on investments conservation (natural, social and economic) toward intra-generation equity. when sustainable development is achieved an overlapping is created between ecological, economic and social classes. the goal of this study is to measure and evaluate watershed sustainability. in order to evaluate sustainability in zidasht basin 1, ...

Journal: :desert 2013
k. rezaei tavabe h. azarnivand

qanat is one of the important inland aquatic ecosystems commonly containing freshwater in arid and semi-aridregions. there are 37 qanat chains in kerman county in the kerman province of iran. during past years, some ofthem have been dried as a result of deep wells digging in their vicinities. the present study used morphomeristicanalysis to characterize fishes and invertebrate fauna in the qana...

Journal: مدیریت شهری 2015
Ali Asghar Ehsani Fard, Mohammad Zarqani, Zohreh Farshi Haqqi,

In response to the facts that some Asian developing countries were experiencing the fastest rate of industrialisation and urbanisation, several international initiatives called for a better and ‘sustainable’ urban management. Development of management tools including strategic environmental assessment (SEA), life cycle assessment (LCA), cost benefit analysis (CBA), and environmental managemen...

The analysis of Iran's knowledge economy suggests that the main weakness of the Iranian economy is the lack of processes of innovation and innovative entrepreneurship for the exploitation of new knowledge and technology. These processes fundamentally formed in the knowledge-based entrepreneurship ecosystems that did not developed in Iran economy and has not even known. Therefore, the purpose of...

Background. It cannot be denied that sport ecosystem consists of complex stakeholders. According to that, smart orchestration was needed to permit integration and promote active cross-sectoral. It required a suitable strategy to integrate and engage the entire system at any individual group, enterprise-level, and public sector. Therefore, the practical strategy will engage the entire system, so...

ژورنال: زیست شناسی دریا 2019
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AMBI is an ecological marine ecosystem indicator, which provides a more intelligent assessment of ecosystems of sensitivity and resilience, and ecological role, compared to famous diversity and dominance. This study assesses ecosystem health status from the AMBI's perspective by examining the distribution and biodiversity of macrobenthoses from mangrove of Mel-e-Gonzeh in the Bushehr province. ...

2012

An ecosystem consists of all the biological organisms and the physical environments they occupy together within a defined area [1]. The actual boundaries of an ecosystem are generally defined by researchers studying the ecosystem, who are usually interested in understanding the processes that control some aspects of ecosystem dynamics. Thus, the spatial domain of an ecosystem might range in siz...

Journal: :journal of rangeland science 2013
gholam ali heshmati zahra mohebbi

the main objective of an ecosystem sustainable management is to preserve itscapacity to respond and adapt to current disturbances and/or future changes, and maintain theprovision of environmental goods and services. two very important properties linked to thisobjective are the ecosystem resilience and resistance to disturbance factors. the objective ofthis paper is to recommend conceptual modif...

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