caa a22 4500 469037784 CHVBK 20180323132800.0 cr unu---uuuuu 170328e19921101xx s 000 0 eng 10.1007/BF00143029 doi (NATIONALLICENCE)springer-10.1007/BF00143029 The potential for short-rotation woody crops to reduce U.S. CO2 emissions [Elektronische Daten] [R. Graham, L. Wright, A. Turhollow] Short-rotation woody crops (SRWC) could potentially displace fossil fuels and thus mitigate CO2 buildup in the atmosphere. To determine how much fossil fuel SRWC might displace in the United States and what the associated fossil carbon savings might be, a series of assumptions must be made. These assumptions concern the net SRWC biomass yields per hectare (after losses); the amount of suitable land dedicated to SRWC production; wood conversion efficiencies to electricity or liquid fuels; the energy substitution properties of various fuels; and the amount of fossil fuel used in growing, harvesting, transporting, and converting SRWC biomass. Assuming the current climate, present production, and conversion technologies and considering a conservative estimate of the U.S. land base available for SRWC (14 × 106 ha), we calculate that SRWC energy could displace 33.2 to 73.1 × 106 Mg of fossil carbon releases, 3-6% of the current annual U.S. emissions. The carbon mitigation potential per unit of land is larger with the substitution of SRWC for coal-based electricity production than for the substitution of SRWC-derived ethanol for gasoline. Assuming current climate, predicted conversion technology advancements, an optimistic estimate of the U.S. land base available for SRWC (28 × 106 ha), and an optimistic average estimate of net SRWC yields (22.4 dry Mg/ha), we calculate that SRWC energy could displace 148 to 242 × 106 Mg of annual fossil fuel carbon releases. Under this scenario, the carbon mitigation potential of SRWC-based electricity production would be equivalent to about 4.4% of current global fossil fuel emissions and 20% of current U.S. fossil fuel emissions. Kluwer Academic Publishers, 1992 Graham R. Environmental Sciences Division, Oak Ridge National Laboratory, P.O. Box 2008, 37831-6352, Oak Ridge, TN, U.S.A. aut Wright L. Environmental Sciences Division, Oak Ridge National Laboratory, P.O. Box 2008, 37831-6352, Oak Ridge, TN, U.S.A. aut Turhollow A. Energy Division, Oak Ridge National Laboratory, P.O. Box 2008, 37831-6352, Oak Ridge, TN, U.S.A. aut Climatic Change Kluwer Academic Publishers 22/3(1992-11-01), 223-238 0165-0009 22:3<223 1992 22 10584 https://doi.org/10.1007/BF00143029 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00143029 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Graham R. Environmental Sciences Division, Oak Ridge National Laboratory, P.O. Box 2008, 37831-6352, Oak Ridge, TN, U.S.A aut NATIONALLICENCE 700 1- Wright L. Environmental Sciences Division, Oak Ridge National Laboratory, P.O. Box 2008, 37831-6352, Oak Ridge, TN, U.S.A aut NATIONALLICENCE 700 1- Turhollow A. Energy Division, Oak Ridge National Laboratory, P.O. Box 2008, 37831-6352, Oak Ridge, TN, U.S.A aut NATIONALLICENCE 773 0- Climatic Change Kluwer Academic Publishers 22/3(1992-11-01), 223-238 0165-0009 22:3<223 1992 22 10584 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer