山火事(地表火)によってもたらされるスギ樹幹基部の材質変化

概要

論文の詳細を見る
On April, 1987, the man-made Sugi (Cryptomeria japonica D. Don) forests in the Umada Peninsula of Kamaishi city, Iwate Prefecture were severely damaged by large-scale forest fire (forest floor fire) When we investigated the damaged tree condition just after the forest fire, we found that adult trees seemed not to be serious in spite that almost young trees were burnt to death, because the scar of burns is remained only on the part near the root of tree stem for adult ones different from young ones. Thus, it is very difficult to determine the fate of damaged trees, only with the scar of burns just after forest ground (floor) fire. From the reason above mentioned, we observed citologically how to change the wood qualities with the pass of time after fire damage. As the result of that, we found, 1) the cambium under the scar of burn stop their function, 2) those of upper part of damage and lower one can keep their function about one year and some months, respectively, and 3) the undamaged cambium extend their activity into damaged parts.
森林立地学会の論文
1993-12-30