Life, senescence and decomposition of silver fir (Abies alba) needles. 5. Distribution and variations with height of living needles
Gourbiere, F.; Corman, A.
Acta Oecologica, Oecologia Plantarum 6(2): 193-209
In an A. alba forest in the Massif Central, France, 95% of the needle biomass occurred in the top 8 m of the trees (total ht. 25 m). Needle characteristics depended on their distance from the top of the crown. Life span of needles showed a linear correlation with ht. Needle wt. decreased from the top to the base of the crown. It increased with age of needles for the first 4 yr, then remained constant.