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Recent increases in population and economic growth have increased the demand for land-plant biomass for food, fuel and other purposes, but the supply of leaf, stem, root, fruit and other terrestrial plant-based materials has been hampered by a limit to what can naturally be produced.
Those making land use decisions to reduce the harmful effects of climate change have focused almost exclusively on greenhouse gases – analyzing, for example, how much carbon dioxide is released when a forest is cleared to grow crops.
Growing perennial grasses on the least productive farmland now used for corn ethanol production in the US would result in higher overall corn yields, more ethanol output per acre and better groundwater quality, researchers report in a new study.
Researchers at the University of Illinois have developed a new, more accurate method of calculating the change in greenhouse gas emissions that results from changes in land use.
Converting forests or fields to biofuel crops can increase or decrease greenhouse gas emissions, depending on where â€“ and which â€“ biofuel crops are used, University of Illinois researchers report this month.
- In medieval musical notation, a sign or neume denoting a shake or trill.