Reay, M. K., Sayer, E. J., Smith, A., Pastor, V., Kourmouli, A., Marshall, M., Grzesik, R. T., Evans, I., Rumeau, M., Hart, K., Ma, J., Norby, R. J., MacKenzie, A. R., Hamilton, R. L., Hartley, I. P., Ullah, S. (2025). Elevated CO 2 alters relative belowground carbon investment for nutrient acquisition in a mature temperate forest. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.2503595122