TY - RPRT TI - Long-term ecosystem nitrogen limitation from foliar δ15N data and a land surface model AU - Caldararu, S. AU - Thum, T. AU - Yu, L. AU - Kern, M. AU - Nair, R. AU - Zaehle, S. PY - 2021 DO - 10.1101/2021.07.16.452605 UR - https://www.biorxiv.org/content/10.1101/2021.07.16.452605v1 ID - 10.1101/2021.07.16.452605 ER -