Forestry Sequestration of CO2 and Markets for Timber

摘要: Forestry has been considered to have potential in reducing the atmospheric concentration of carbon dioxide by sequestrating above-ground timber and below-ground roots soil. This noted Kyoto Protocol, which identified specific forestry activities for sequestration credits could be obtained. To date, a few efforts undertaken purposes, but most these on small scale. Proposals under discussion, however, that would result creation very large areas new forest purpose offsetting some additional is being released into atmosphere. Concerns are expressed, large-scale operations might impacts world market, affecting prices thereby incentives traditional suppliers invest management production. Such "crowding out" or "leakage" effect, as it called literature, negate much all sequestered newly created forests. Accordingly, this study examine assess interactions between forestry, particularly, forests, markets timber. The approach involves utilizing an existing Dynamic Timber Supply Model (DTSM) forests model used global supply and, more recently, modified include considerations. suggests even without any efforts, commercial offers sequester substantial volumes carbon, approaching ten gigatons (Gt) (or petagrams (Pg)), vegetation, soils market products over next century. At current rates build up equal about three years net releases volume increased 50–100% 50 million hectares (ha) rapidly growing carbon-sequestering plantation given anticipated leakages due price effects. Finally, projections suggest amount crowding out likely modest. ha plantations projected reduce land industrial plantations, is, crowd out, only from 0.2 7.8 100-year period. addition increase system than 50%, 5.7 Gts, above already captured activity. estimate assumes associated will occur. buildup, 2.8% expected total buildup century offset plantations.