Is tree age or tree size reducing height increment in Abies alba Mill. at its southernmost distribution limit?

Table 1 Descriptive statistics of the attributes measured on the sampled trees

Attribute	Mean	Min	Max	SD	Skewness	Kurtosis
dbh (cm)	53.0	15.0	94.0	18.48	− 0.20	− 0.65
Current annual increment of dbh (cm year⁻¹)	0.39	0.13	0.63	0.13	0.06	− 0.39
Height (m)	29.3	16.1	44.2	5.85	− 0.05	− 0.40
Current annual increment of height (cm year⁻¹)	0.20	0.04	0.39	0.07	0.26	− 0.19

ISSN: 1297-966X