IMPACT4SOIL OpenAire Crossref Microsoft Academic Graph Forest Ecology and Management Closed Access 2008-10-03 Abstract Fast-growing woody species grown in dense, short-rotation plantations on land previously in agriculture offer potential economic benefits in products such as engineered construction material, boiler fuel, non-food-based biofuel feed stocks and other carbon (C)-based products and credits. However, information on the effects on major C pools of short-rotation culture is relatively sparse. In this study, Populus deltoides and P. deltoides × P. nigra hybrid clones were grown for 5 years at 1 m × 1 m spacing in plantations on a former pasture of high native fertility in the Missouri River floodplain in the lower Midwest U.S.A. Above- and below-ground biomass production, leaf area-based production efficiency, photosynthetic attributes and soil C dynamics were studied. Populus clones yielded up to 70 Mg ha−1 over 5 years, results that compare favorably to poplar culture in other regions. P. deltoides clones yielded almost twice as much as hybrids (66.3 vs. 36.9 Mg ha−1) despite more rapid early growth by the latter. Superior yields of P. deltoides clones were associated with greater (32–120%) production efficiency (total biomass yield per unit of time-integrated leaf area) and greater (17–42%) photosynthetic capacity, but not with differential allocation patterns of C above and below ground. Soil C losses were observed over 5 years, mostly from the top 12.5 cm of soil. Soil C loss in this study was associated with conversion from organic matter input-rich pasture culture, and subsequent rotations might not be accompanied by losses of the magnitude observed in the first. Net C sequestration in measured carbon stocks ranged from 11.4 to 33.5 Mg ha−1 in the two plantations. 2. Zero hunger 8. Economic growth 0401 agriculture, forestry, and fisheries 04 agricultural and veterinary sciences 15. Life on land 01 natural sciences 7. Clean energy 0105 earth and related environmental sciences Stephen G. Pallardy, Julie L. Rhoads, Daniel E. Gibbins, Ryan C. Dowell, 2009-01-01 journalpaper Abstract Fast-growing woody species grown in dense, short-rotation plantations on land previously in agriculture offer potential economic benefits in products such as engineered construction material, boiler fuel, non-food-based biofuel feed stocks and other carbon (C)-based products and credits. However, information on the effects on major C pools of short-rotation culture is relatively sparse. In this study, Populus deltoides and P. deltoides × P. nigra hybrid clones were grown for 5 years at 1 m × 1 m spacing in plantations on a former pasture of high native fertility in the Missouri River floodplain in the lower Midwest U.S.A. Above- and below-ground biomass production, leaf area-based production efficiency, photosynthetic attributes and soil C dynamics were studied. Populus clones yielded up to 70 Mg ha−1 over 5 years, results that compare favorably to poplar culture in other regions. P. deltoides clones yielded almost twice as much as hybrids (66.3 vs. 36.9 Mg ha−1) despite more rapid early growth by the latter. Superior yields of P. deltoides clones were associated with greater (32–120%) production efficiency (total biomass yield per unit of time-integrated leaf area) and greater (17–42%) photosynthetic capacity, but not with differential allocation patterns of C above and below ground. Soil C losses were observed over 5 years, mostly from the top 12.5 cm of soil. Soil C loss in this study was associated with conversion from organic matter input-rich pasture culture, and subsequent rotations might not be accompanied by losses of the magnitude observed in the first. Net C sequestration in measured carbon stocks ranged from 11.4 to 33.5 Mg ha−1 in the two plantations. Biomass Production Physiology And Soil Carbon Dynamics In Short-Rotation-Grown Populus Deltoides And P. Deltoides × P. Nigra Hybrids 10.1016/j.foreco.2008.08.023, https://doi.org/10.1016/j.foreco.2008.08.023,