نتایج جستجو برای: environment and conservation of natural resources
تعداد نتایج: 24112658 فیلتر نتایج به سال:
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introduction continuing environmental crisis, human was aware of the necessity for revising its method of dealing with the environment during the development. therefore, changing the development paradigm from classical to modern, sustainable development and environmental issues become major pillars of development and achieve sustainable development depends on the complete recognition of environ...
We develop a one-sector endogenous growth model in which renewable natural resources are both a factor of production and measure of environmental quality. Along the balanced growth path, sustained economic growth and a non-deteriorating environment are shown to coexist. Moreover, steady-state economic growth and natural-resource utilization are positively related. Empirically, a cross-country g...
This chapter concerns the role of pollinators, especially bees, in relation to our agriculture and economy. Besides being a critical participant reproductive process most flowering plants, bees’ pollination services increase crop yields, improve nutritional quality, contribute significantly global However, beekeepers that manage domesticated European honey bee had noticed huge numbers their bee...
دسته ای از ترکیبات شیمیائی که مخصوصا با گسترش زندگانی جدید (ماشینی)اهمیت فرآینده ای پیدامی کنند، افزودنیهای مختلف غذائی میباشند که در صنایع مربوطه بکار گرفته می شوند بکارگیری بخشی از این موا تحت عنوان طعم دهنده ها بمنظور تامین طعم و مزه طبیعی درفرآورده های صنعتی تقریبا اجتناب ناپذیر گشته و همگام با توسعه تولیدات روبه توسعه می رود. یک شناخت سیستماتیک و جامع از خواص و آثار اینگونه مواد طبیعتا مست...
the importance of environmental protection in modern communities is vital, the action and implementation of any program requires the sufficient knowledge and understanding of environment. one of the methods to preserve natural resources and achieving sustainable development, especially sustainable agriculture, is the environmentally evaluation of agriculture production processes. life cycle ass...
This paper brings out the issues related to natural resource exists, management and erosion right from the ancient to modern era. The natural resource such as forests and forest products were found as a basic source of survival for living organisms during the initial period. Later, the natural resources started degrading slowly and steadily due to increased human activities. In the beginning, n...
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