林床における枯死材の分解速度に関する研究 : II.枯死材の重量減少と炭酸ガス放出について
1975 年 25 巻 3 号 p. 132-140
詳細
1975 年 25 巻 3 号 p. 132-140
The relative rate of dry weight loss (r) and the rate of CO_2 evolution (R) in wood litter were observed under natural conditions on the floor of evergreen oak forests in Japan. The CO_2 evolution rate increased exponentially with the rise of temperature during both the short-term and longer seasonal changes of temperature, with the Q_10 values of 1.76 and 3.32 respectively. Both R and r were linearly correlated with the apparent density (ρ) of dead wood. R was maximized at the medium water content in each group of dead wood sample having similar ρ values. A logistic equation was derived from the R-ρ relation to describe the time trend of dry weight loss.
