立地条件の異なる83年生スギ人工林の技および葉現存量

概要

論文の詳細を見る
A study was made of branch and leaf biomass in an 83-year-old man-made Cryptomeria japonica stand in the Tokyo University Forest in Chiba. In the study area, four plots with different topographical conditions were established, i.e., R-1 on steep ridge, R-2 on flat ridge, M on mid-slope, and B on bottom. Branch and leaf biomass were estimated by dimension analysis. Leaf biomass was estimated at 28 in R-1,26 in R-2,17 in M, and 13 t/ha in B. Plots with high tree density had tended to give large leaf biomass. Branch biomass was estimated at 40 in R-1,14 in R-2,25 in M, and 28 t/ha in B. Except in R-2,branch biomass exceeded leaf biomass by a factor of two or more, especially in B. In old stands, the very long life span of branches seems one reason for the apparently large branch biomass when compared with younger stands.
日本生態学会の論文
1990-12-31