نتایج جستجو برای: so decrease biodiversity increase agricultural value added

تعداد نتایج: 2313345  

Journal: :International Journal of Agricultural Management and Development 2015

2011
Emile A. Frison

Agricultural biodiversity has hitherto been valued almost exclusively as a source of traits that can be used in scientific breeding programs to improve the productivity of crop varieties and livestock breeds. We argue that it can make a far greater contribution to increased productivity. In particular, a wider deployment of agricultural biodiversity is an essential component in the sustainable ...

2003

Regimes of protection for biodiversity throughout the agricultural landscape are needed to support the agriculture sector in general and farmers in particular. There are many opportunities to establish protective regimes that will contribute to the agriculture sector through “protect-and-connect” policies and practices. These can also contribute to the biodiversity value of natural protected ar...

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2014
Lyndon D Estes Lydie-Line Paroz Bethany A Bradley Jonathan M H Green David G Hole Stephen Holness Guy Ziv Michael G Oppenheimer David S Wilcove

Much of the biodiversity-related climate change impacts research has focused on the direct effects to species and ecosystems. Far less attention has been paid to the potential ecological consequences of human efforts to address the effects of climate change, which may equal or exceed the direct effects of climate change on biodiversity. One of the most significant human responses is likely to b...

Journal: :پژوهش ها و سیاست های اقتصادی 0
تیمور رحمانی پوریا اصفهانی

corruption defined as abuse of power by governmental officials for personal goals.in recent years, many articles about determinants of corruption have been written that introduced so many variables as determinants of corruption. these factors can be divided into two categories: economic and non-economic factors.in these article we examine the effect of economic activities combination on corrupt...

Journal: :Revista de biologia tropical 2009
Javier Otero Miren Onaindia

Changes in land use have generated a new landscape configuration in the Andino orobiome (mountain range) of the tropical Andes, resulting in a mosaic of cultivation and pastures interrupted by small fragments of forest and live fences. This has resulted in an ongoing decrease in the biodiversity of this biome. In the upper basin of the Cane-Iguaque River (Villa de Levya-Boyacá, Colombia), locat...

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2008
Les G Firbank Sandrine Petit Simon Smart Alasdair Blain Robert J Fuller

Agricultural intensification is best considered as the level of human appropriation of terrestrial net primary production. The global value is set to increase from 30%, increasing pressures on biodiversity. The pressures can be classified in terms of spatial scale, i.e. land cover, landscape management and crop management. Different lowland agricultural landscapes in Great Britain show differen...

This study investigates the relationship between renewable energy consumption, agricultural value added and per capita GDP with CO2 emissions in selected countries of MENA region. The study estimates the values of cointegration amongst the selected varaiables  using panel data from selected countries for the period 1990 to 2014. The results indicated a long-run relationship between these variab...

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