نتایج جستجو برای: sustainable 431 and unsustainable 267

تعداد نتایج: 16850958  

2006
Walter Scheidel Richard Saller

This paper seeks to relate proxy indices of economic performance to competing hypotheses of sustainable and unsustainable intensive economic growth in the Roman world. It considers the economic relevance of certain types of archaeological data, the potential of income-centered indices of economic performance, and the complex relationship between economic growth and incomes documented in the mor...

Journal: :desert 2015
hajar hassanshahi hooshang iravani zhila daneshvar ameri khalil kalantari

agricultural sustainability refers to the ability of a cropping system to produce, without causing irreversible damage tothe ecosystem. there is an increasing need to view cropping systems and identify management practices in a holisticindicator-based impact assessment. the main objective of this study was to compare and rank the cropping systems of themarvdasht plain in fars province; in order...

Journal: :کشاورزی (منتشر نمی شود) 0
حسن صدیقی استادیار، گروه ترویج آموزش کشاورزی، دانشکده کشاورزی، دانشگاه تربیت مدرس، تهران کوروش روستا مربی گروه ترویج و آموزش کشاورزی، دانشگاه آزاد اسلامی واحد بیرجند

the sustainability of farming system (sofs) is considered to be an important principle in a broad concept of sustainable agriculture. variables affecting sofs include alternate crop farming (using nitrogen-fixing plants as alternate crops), utilizing farm animal manure, using plants and crop residues back into the soil system, and utilizing a variety of protective plowing schemes. overuse and p...

Journal: :تحقیقات جغرافیایی 0
ناصر علیقلی زاده فیروزجایی مصطفی قدمی

sustainable tourism development is a process that interacts with host life quality, visitor′ demands and preservation of natural and human environment. in the sustainable tourism approach, with an emphasis on the key function of hosts and guests' perception to understand and constantly evaluate their beliefs and imaginations toward tourism development in destination, subjective indicator...

Journal: :معماری و شهرسازی آرمان شهر 0
mahin nastaran associate professor of art university of isfahan, faculty of architecture and urban planning, department of urban planning, art university of isfahan, isfahan, iran. mahmoud ghalehnoee assistant professor of art university of isfahan, faculty of architecture and urban planning, department of urban planning, art university of isfahan, isfahan, iran. alireza sahebgharani msc. of urban planning, art university of isfahan, faculty of architecture and urban planning, department of urban planning, art university of isfahan, isfahan, iran.

the rapid rate of population growth in developing countries leads to imbalances development in various urban levels. the trend of urban sustainability is declined due to these imbalances. this declination increases concerns of urban planners to improve the sustainability of urban environments. being aware of sustainability level of urban intervention areas before doing any action is inevitable....

Over the last 50 years the world’s population and industrialization have soared leading to increased resource use, pollution and waste, and in turn to problems including raw materials shortage and unsustainable increases in landfill areas environmental, social and economic expectation stakeholders of the company every day more and more. Designing products with reuse at end of life in mind is a ...

2011
Ryan R. Peterson

Despite the significance and growth of tourism in the Caribbean, ontologies and epistemologies of sustainable tourism in island societies remain fragmented, fragile, fleeting and fatalistic. In a review of, and reflecting on the classical canons of tourism, sustainable tourism, and islands, within contemporary Caribbean island societies, this paper contends that our current scientific modes, mo...

2011
Rüdiger Voss Hans-Harald Hinrichsen Martin F. Quaas Jörn O. Schmidt Olli Tahvonen

Rüdiger Voss 1*, Hans-Harald Hinrichsen2, Martin F. Quaas 1, Jörn O. Schmidt 1, and Olli Tahvonen3 Sustainable Fisheries, Department of Economics, University of Kiel, Wilhelm-Seelig Platz 1, 24118 Kiel, Germany Leibniz Institute of Marine Sciences, Düsternbrooker Weg 20, 24105 Kiel, Germany Department of Forest Sciences, University of Helsinki, Latokartanonkaari 7, PL 27, 00014 Helsinki, Finlan...

2004
Gregory S. Amacher Erkki Koskela Markku Ollikainen

We propose a framework with endogenous allocation of land between agricultural production, sustainable forest management, and unsustainable forest exploitation in the form of illegal logging to explore deforestation and agricultural and timber supplies when property rights are insecure. Uncertainty over property rights arises through risk of confiscation on sustainably-managed forest land, and ...

Journal: Desert 2015

Agricultural sustainability refers to the ability of a cropping system to produce, without causing irreversible damage tothe ecosystem. There is an increasing need to view cropping systems and identify management practices in a holisticindicator-based impact assessment. The main objective of this study was to compare and rank the cropping systems of theMarvdasht plain in Fars Province; in order...

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