Carbon Storage and Vertical Spatial Distribution of Dendrocalamopsis vario-striata Ecosystem

Abstract:

Carbon storage and spatial distribution characteristics of Dendrocalamopsis vario-striata were studied by using quadrat method.The results showed that carbon density in different organs of D. vario-striata ranged from 0.4684 to 0.5092 g g^-1, with in order as: culm>rhizome>root>branch>leaf. The organ distribution of carbon storage was 50.46% for culm, 20.71% for rhizome, 14.31% for root, 9.24% for branch and 5.01% for leaf. The total carbon pool, counting for 104.9321 t hm^-2, mainly consisted of four components, such as arbor layer, shrub and herb layer, litter layer and soil layer, which spatial distribution was in order as: soil layer (59.74%)>arbor layer (36.86%)> litter layer (2.30%)>shrub and herb layer (1.10%). Annual fixed carbon content of bamboo forest was 6.4460 t hm^-2, equivalent to 23.6353 t hm^-2 CO₂, which was lower than that of average value of forests in China. It suggested that there was much development space for fixed carbon capacity of D. vario-striata.

Key words:Dendrocalamopsis vario-striata;Ecosystem;Carbon density;Carbon storage