Land-Use, Land-Use Change and Forestry - the IEA Bioenergy Task ...
Land-Use, Land-Use Change and Forestry - the IEA Bioenergy Task ...
Land-Use, Land-Use Change and Forestry - the IEA Bioenergy Task ...
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S.Subak – Addressing COP6 Decisions on Agricultural Soil Carbon 11Sources <strong>and</strong> Sinks of Carbon from Agricultural SoilsSourcesTransformations • Cropl<strong>and</strong>s from wetl<strong>and</strong>s• Cropl<strong>and</strong>s fromgrassl<strong>and</strong>sSinks• Set-aside (to grassl<strong>and</strong>or woodl<strong>and</strong>)ProductionSoilconservation• Cropl<strong>and</strong>s from naturalecosystems• Lower residue yield (maybe due to fertilizer inputsor genetic improvements)• <strong>Change</strong> to crop typeswith lower biomass levels• Lower lignin contentcrops• Longer fallow• Intensive till• Residue (straw) sales• Stubble burning• Higher residue yields• <strong>Change</strong> to crops withhigher biomass levels(agroforestry or certaincrop switching to e.g.from soybeans to corn)• Higher lignin contentcrops• Shorter fallow• No-till or minimum till• Residue incorporationinto soils• Cover crops (inter-rowwith perennials; orwinter cover forannuals)• Control of soil waterO<strong>the</strong>r • liming • Animal manure orsewage sludge storage
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