Relationships between carbon and hydrogen isotope ratios and nitrogen levels in leaves ofClusia species and two other Clusiaceae genera at various sites and different altitudes in Venezuela
Author(s):
Diaz, M.; Haag-Kerwer, A.; Wingfield, R.; Ball, E.; Olivares, E.; Grams, T. E. E.; Ziegler, H.; Lüttge, U.