Comparison of organic matter dynamics in soil between Japanese cedar (Cryptomeria japonica) forest and adjacent Japanese red pine (Pinus densiflora) forest established on flatland |
| |
| Authors: | Terumasa Takahashi Akiko Minami Yoshito Asano Tatsuaki Kobayashi |
| |
| Institution: | (1) Faculty of Horticulture, Chiba University, 271-8510 Matsudo, Japan;(2) Present address: Hashikami town office, 039-1201 Hashikami, Japan |
| |
| Abstract: | In order to clarify the effects of tree species on organic matter dynamics in soil, we investigated the amount of forest floor
material, leaf litter decomposition rate, soil chemical characteristics, soil respiration rate and cellulose decomposition
rate in a Japanese cedar forest (cedar plot) and an adjacent Japanese red pine forest (pine plot) established on a flatland.
The amount of forest floor material in the cedar plot was 34.5 Mg ha−1 which was greater than that in the pine plot. Because the leaf litter decomposition rate was higher in the pine plot than
in the cedar plot, it is likely that the difference in the amount of forest floor material between the plots is caused by
the difference in the leaf litter decomposition rate. The C concentrations of soil in the cedar plot were 1.2–2.1 times higher
than those in the pine plot. Soil pH(H2O)s in the cedar plot were significantly higher than those in the pine plot. The soil respiration rates and the rates of mineralized
C in the cedar plot byin vitro incubation were higher than those in the pine plot. From this result, it is assumed that soil organic matter in the cedar
plot was decomposed relatively faster compared with the pine plot. Furthermore, microbial activities, which were reflected
as cellulose decomposition rates in the cedar plot, were higher than those in the pine plot.
A part of this paper was presented at the 109th Annual Meeting of the Japanese Forestry Society (1998). |
| |
| Keywords: | decomposition of organic matter Japanese cedar (Cryptomeria japonica) Japanese red pine (Pinus densiflora) microbial activity soil respiration |
| 本文献已被 SpringerLink 等数据库收录！ |
|
