From: Estimating gap age using tree-ring width in combination with carbon isotope discrimination in a temperate forest, Northeast China
Species
Shade tolerance
Sample number
Mean DBH (cm)
Ulmus laciniata
Shade tolerant
9
27.5
Fraxinus rhynchophylla
Neutral
8
27.4
Juglans mandshurica
Shade intolerant
7
27.7