The average biomass of these stands amounts to 41.456 t/ha,in which the biomass of arbor layer litterfall and undergrowth were 32.799, 7.247 and 1.41Qt/ha or 79.1,17.5 and 3.4% of the total stands, respectively .

• 其中乔木层、林下植物层和枯枝落叶层的生物量分别是32.；799、1