Spatial and Short-Temporal Variability of δ(13)C and δ(15)N and Water-Use Efficiency in Pine Needles of the Three Forests Along the Most Industrialized Part of Poland

Spatial and Short-Temporal Variability of δ(13)C and δ(15)N and Water-Use Efficiency in Pine Needles of the Three Forests Along the Most Industrialized Part of Poland