Belowground fate of 15N injected into sweetgum trees (Liquidambar styraciflua) at the ORNL FACE experiment Journal August, 2009
Forest fine-root production and nitrogen use under elevated CO2: Contrasting responses explained by a common principle... Journal January, 2009
Forest response to elevated CO2 is conserved across a broad range of productivity Journal December, 2005
Forest response to elevated CO2 is conserved across a broad range of productivity Journal November, 2005
