26 August 2015, The Carbon Brief, Celebrating soils: Why are they so important for our climate? From the 800th anniversary of the Magna Cartato the 60th birthday of the Birds Eye Fish Finger, there are plenty of reasons to mark 2015 as an important year. But you could be forgiven for being unaware that 2015 is also theUN International Year of Soils. By putting soils centre stage, the UN Food and Agricultural Organisation (FAO) aims to raise awareness of how important soils are for producing food and fuel, and keeping ecosystems healthy. But soils have also been thrust to the forefront of international science because of climate change. Globally, the top metre of soils contains about three times as much carbon as in our entire atmosphere. Losing carbon from the soil into the atmosphere can add to climate warming. But if soils can be managed in a way that means they store more carbon, they can help to reduce the amount of carbon in the atmosphere, and thereby help limit climate change. Read More here
Tag Archives: Agriculture
9 June 2015, Science Daily, Land management practices to become important as biofuels use grows: The handling of agricultural crop residues appears to have a large impact on soil’s ability to retain carbon, making land management practices increasingly important, especially under a scenario where cellulosic materials become more heavily used as a feedstock for ethanol production, according to a recently published study led by researchers at the U.S. Department of Energy’s Argonne National Laboratory. “Plants and soil are carbon sinks,” said Argonne climate scientist Beth Drewniak, who led the study. “Soils lock carbon away for long periods of time. But when plant residues are harvested, not only are inputs of carbon and other nutrients to soil lost, but decomposition is accelerated, causing soils to lose additional carbon.” Read More here
14 May 2015, The Conversation: Single-crop farming is leaving wildlife with no room to turn. Rolling plains of wheat, endless fields of flowering canola, row upon row of fruit trees: these agricultural landscapes are the stuff of stunning photographs. Filling these paddocks with just one crop, known as monoculture, is a relatively easy, common and efficient way to produce food and fibre. But international research shows that these monocultures can be bad for the environment and production through effects on soil quality, erosion, plants and animals, and ultimately declining crop yields. Research I have published this week in the International Journal of Agricultural Sustainability shows a possible link between monoculture landscapes and fewer wild pollinators. Read More here
8 May 2015, ClimateWire: New England city turns to its wastes to ensure year-round supply of fresh vegetables and fish. By this time next year, residents in Keene, N.H., will have year-round access to local and sustainable fish and vegetables, thanks to their municipal landfill. Keene’s city officials are partnering with an organization called the Local Farms Project with plans to construct a 1-acre greenhouse and a recirculating aquaculture system on the grounds of the closed Keene Landfill. Once it is fully operational, the Keene Energy and Agriculture Project is expected to produce 500,000 pounds of fresh lettuce and herbs and 66,000 pounds of live tilapia for local grocery wholesalers each year. Read More here