Increases in the Flux of Carbon Belowground Stimulates Nitrogen Uptake and Sustains the Long-Term Enhancement of Forest Productivity under Elevated CO2

0 Drake, J.E. Gallet-Budynek, A. Hofmockel, K.S. Bernhardt, E.S. Billings, S.A. Jacksom, R.B. Johnsen, K.S. Lichte,r J. McCarthy, H.R. McCormack, M.L. Moore, D.J.P. Oren, R. Palmroth, S. Phillips, R.P. Pippen, J.S. Pritchard, S.G. Treseder, 2011 Increases in the Flux of Carbon Belowground Stimulates Nitrogen Uptake and Sustains the Long-Term Enhancement of Forest Productivity under Elevated CO2 Ecology Letters 14 4 349-357