منابع مشابه
Closing yield gaps: perils and possibilities for biodiversity conservation.
Increasing agricultural productivity to 'close yield gaps' creates both perils and possibilities for biodiversity conservation. Yield increases often have negative impacts on species within farmland, but at the same time could potentially make it more feasible to minimize further cropland expansion into natural habitats. We combine global data on yield gaps, projected future production of maize...
متن کاملClosing Yield Gaps: How Sustainable Can We Be?
Global food production needs to be increased by 60-110% between 2005 and 2050 to meet growing food and feed demand. Intensification and/or expansion of agriculture are the two main options available to meet the growing crop demands. Land conversion to expand cultivated land increases GHG emissions and impacts biodiversity and ecosystem services. Closing yield gaps to attain potential yields may...
متن کاملClosing the health gaps.
For several decades, epidemics of chronic, non-contagious diseases have been observed in the developed countries worldwide. However, considerable health differences are noted between countries, even on the same continent, as well as between individual population groups in particular countries. These differences are very clearly observable in Europe. Professor Zatoński in his studies (HEM, PONS ...
متن کاملClosing Achievement Gaps
groups are a prominent feature of today’s educational landscape, with black and Hispanic children regularly falling far behind white children. Although the achievement gaps narrowed somewhat during the 1970s and 1980s, they have since proved stubbornly resistant to closing further. If the nation is to achieve the goal of equal education as “a fact and a result,” to borrow President Lyndon Johns...
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ژورنال
عنوان ژورنال: Advances in Water Resources
سال: 2017
ISSN: 0309-1708
DOI: 10.1016/j.advwatres.2016.11.015