熱帯性Zizyphus jujuba灌木群集におけるリター生産および有機物のターンオーバー

概要

論文の詳細を見る
The rate of production, accumulation, and disappearance of litter was studied in a tropical deciduous Zizyphus jujuba shrub community located on a Vindhyan hill in India. A gradual increase in the production of leaf and non-leaf litter was observed during three consecutive years. The contribution made by leaf litter to the total litter production ranged between 68.56 and 78.45 per cent. In the leaf component, the production of twig litter was always higher than that of the fruit litter. An experimental study of the leaf litter decomposition using the nylon bag technique revealed that within a year, 96.42 per cent of the initially placed litter decayed, of which the rainy, winter, and summer seasons shared about 68.04,18.50 and 9.88 per cents, respectively. Significant (P<0.001) positive correlations among the weight-loss, CO_2 evolution, and moisture content of the litter and soil were recorded. More accumulations of undecomposed residual litter were found during the summer months when the microbial activities were reduced due to the high temperatures and low moisture content. The turnover rate of the leaf litter was found to be higher than that of the non-leaf litter. It was observed that the litter bag provided an estimate of decay which was biased towards low values.
日本生態学会の論文
1980-09-30