Sprouting traits of shrub and arborescence species in a post-pine wilt disaster secondary forest
2005
Sugawara, M.(Ehime Univ., Matsuyama (Japan). Coll. of Agriculture) | Hayashida, M. | Tanaka, K. | Ninomiya, I.
We examined sprouting traits, including sprouting ratio, seasonal changes, number and biomass size (dry weight), for three deciduous and two evergreen shrubs and six deciduous arborescences in a post-pine wilt disaster secondary forest. Among the surveyed species, 90% of the parental felled stumps made sprouts during early May and mid June, but the remaining stumps did not sprout. A positive relationship between the biomass of sprouts and diameter of the parental tree at ground level was detected for seven of the eleven examined species, whereas no such significant relationship was found for Acer rufinerve, a pioneer species. These result suggest that A. rufinerve might have a lower below-ground accumulation of resources than the other species. The number, size and branch/1eaf ratio of the sprouts differed among the life forms and species. The relationship between sprout biomass and parental tree diameter at ground level can be used to predict the amount of sprouts, and this information can be applied to devise suitable ways of managing abandoned forest.
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