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Increases in nitrogen uptake rather than nitrogen-use efficiency support higher rates of temperate forest productivity under elevated CO <sub>2</sub>Adrien C. Finzi, R. Ceulemans, Richard J. Norby et al.|Proceedings of the National Academy of Sciences|2007Cited by 402
Amazon forest response to CO2 fertilization dependent on plant phosphorus acquisitionKatrin Fleischer, David M. Lapola, Jennifer A. Holm et al.|Nature Geoscience|2019Cited by 348
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CO<sub>2</sub> enrichment increases carbon and nitrogen input from fine roots in a deciduous forestColleen M. Iversen, Richard J. Norby|New Phytologist|2008Cited by 171