نتایج جستجو برای: agricultural sustainability

تعداد نتایج: 160795  

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2008
Jingzhu Zhao Qishan Luo Hongbing Deng Yan Yan

This paper introduces the concepts and aims of sustainable agriculture in China. Sustainable agricultural development comprises sustainability of agricultural production, sustainability of the rural economy, ecological and environmental sustainability within agricultural systems and sustainability of rural society. China's prime aim is to ensure current and future food security. Based on projec...

Journal: :تحقیقات اقتصاد و توسعه کشاورزی ایران 0
زهرا رنجبر کارشناس¬ارشد بخش ترویج و آموزش کشاورزی دانشگاه شیراز عزت اله کرمی استاد بخش ترویج و آموزش کشاورزی دانشگاه شیراز

iranian farmers are faced with many challenges. they must be economically efficient, produce enough food for the growing population and must be sensitive to environmental concerns. however, there is a growing concern related to the aftermath and side-effect of some agricultural activities on environment. these concerns made researches to consider agricultural activities with profound care in or...

2013
Fengxia Dong Paul D. Mitchell Jed Colquhoun

Measuring farm sustainability performance is a crucial component for improving agricultural sustainability. While extensive assessments and indicators exist that reflect the different facets of agricultural sustainability, because of the relatively large number of measures and interactions among them, a composite indicator that integrates and aggregates over several variables is particularly us...

2013

Measuring farm sustainability performance is a crucial component for improving agricultural sustainability. While extensive assessments and indicators exist that reflect the different facets of agricultural sustainability, because of the relatively large number of measures and interactions among them, a composite indicator that integrates and aggregates over several variables is particularly us...

2004
Heikki Lehtonen Jyrki Aakkula Pasi Rikkonen

In this article, we assess ecological, economic and social sustainability impacts of four alternative agricultural policy scenarios relevant to the European perspective. The analysed scenarios are: Prolonged Agenda 2000, On-going CAP reform, Integrated rural and environmental policy, and Liberalised Agricultural Trade. An economic agricultural sector model of Finnish agriculture is used in the ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2007
David R Montgomery

Data drawn from a global compilation of studies quantitatively confirm the long-articulated contention that erosion rates from conventionally plowed agricultural fields average 1-2 orders of magnitude greater than rates of soil production, erosion under native vegetation, and long-term geological erosion. The general equivalence of the latter indicates that, considered globally, hillslope soil ...

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2008
Elizabeth S Dennis Jeffrey Ellis Allan Green Danny Llewellyn Matthew Morell Linda Tabe W J Peacock

The current tools of enquiry into the structure and operation of the plant genome have provided us with an understanding of plant development and function far beyond the state of knowledge that we had previously. We know about key genetic controls repressing or stimulating the cascades of gene expression that move a plant through stages in its life cycle, facilitating the morphogenesis of veget...

2012
Vandana Shiva Poonam Pandey

Sustainability in agriculture has two dimensions: a. Natural Resource Sustainability b. Socioeconomic Sustainability Natural Resource Sustainability is based on the stability of the ecology of agricultural ecosystems based on interactions between soil, water and biodiversity. This Sustainability measures the wealth of' nature's economy' and the foundation of all other economies. Nature's econom...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1999
V W Ruttan

The transition to sustainable growth in agricultural production during the 21st century will take place within the context of a transition to a stable population and a possible transition to a stable level of material consumption. If the world fails to successfully navigate a transition to sustainable growth in agricultural production, the failure will be due more to a failure in the area of in...

ژورنال: علوم آب و خاک 1999
کرمی, عزت اله, حیاتی, داریوش ,

Studies on sustainable agricultural have not paid adequate attention to farmers' behaviour regarding sustainability. The objectives of this research were: 1) to determine the relationship between socio-economic and farming factors with “sustainable agricultural knowledge”, 2) to predict “sustainable agricultural knowledge” based on socio-economic and farming factors, and 3) to determine the rel...

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