نتایج جستجو برای: plant resources

تعداد نتایج: 650575  

Journal: Journal of Herbal Drugs 2011
Asghar Shahrokhi, Hamzeh Ali Shirmardi Maryam Ghaedamini

Background & Aim: Chaharmahal va Bakhtiari province contains several major floristic plant associations of central Zagros Mountains. Kallar species were used for medicines nutrias in this area. However, these valuable species have been threatened and even become at risk of extinction due to habitat fragmentation and disturbance. Therefore, the first step in protecting theses species is identify...

The growth and development of human societies has always been parallel to the production and consumption of energy. Rapid and sustainable development in any country requires establishing a dynamic and stable balance between technical, economic, social and environmental categories while taking into account conditions that do not cause risks or reduce opportunities for progress. Energy and clean ...

The growth and development of human societies has always been parallel to the production and consumption of energy. Rapid and sustainable development in any country requires establishing a dynamic and stable balance between technical, economic, social and environmental categories while taking into account conditions that do not cause risks or reduce opportunities for progress. Energy and clean ...

          In natural resources, economic evaluation is poor in terms of study due to the uncertainty of non-consuming value of resources. In the present study, the evaluation of water, soil and plant resources in watershed management projects and expert questioning was done to enable the projects to be evaluated and prioritized economically. Three sub-watersheds were selected from the Parcel A ...

Journal: Journal of Herbal Drugs 2011
Asghar Shahrokhi, Hamzeh Ali Shirmardi Maryam Ghaedamini

Background & Aim: Chaharmahal va Bakhtiari province contains several major floristic plant associations of central Zagros Mountains. Kallar species were used for medicines nutrias in this area. However, these valuable species have been threatened and even become at risk of extinction due to habitat fragmentation and disturbance. Therefore, the first step in protecting theses species is identify...

Journal: :تحقیقات نوین در برق 0
محمد صفرعلی نجار mohammad safar ali najjar محسن صنیعی mohsen saniei

abstract: enviromental concerns, improvements in renewable energy technologies, governmental incentives for the use of these resources, and increased t&d; costs, are the main factors driving the energy sector into a new era, where considerable portions of electrical demand will be met through widespread installation of distributed energy resources (ders). the virtual power plant (vpp) is a dece...

2014
A Bargués Tobella H Reese A Almaw J Bayala A Malmer H Laudon U Ilstedt

Water scarcity constrains the livelihoods of millions of people in tropical drylands. Tree planting in these environments is generally discouraged due to the large water consumption by trees, but this view may neglect their potential positive impacts on water availability. The effect of trees on soil hydraulic properties linked to groundwater recharge is poorly understood. In this study, we per...

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