The dynamic analysis on the succession of microbial community structure in wood degradation on the forest floor.

2007年6月，采用磷脂脂肪酸(PLFA)分析方法，对阔叶林下沿坡的3个研究点的苦木、杉木心材和边材的木桩分解过程中土壤微生物群落结构的变化进行了研究。PLFA图谱的主成分分析表明，2个月后，卷心木、杉木心材和边材钉的微生物群落结构可分为3个类群，12个月后，卷心材和边材的微生物群落结构进入1个类群，形成2个不同的群落组，1个类群由卷心材和杉木树液木材组成，2个类群由杉木心材组成。然而，24个月后，这两组人不再能够区分。这些结果表明，在24个月的时间里，微生物群落在Kojii木材和Sugi边材钉子表面很容易被筛选到，而在Sugi心木钉子表面则逐渐被筛选到相同的结构。

The phospholipid fatty acid (PLFA) analysis was used to estimate the changes in microbial community structure during decomposition of wood pegsof kojii wood, sugi heartwood and sapwood buried by half of the length in soil of three study sites at the ridge, side and valley sites along the slope under the broad-leaved forest in June 2007. The PCA analysis of PLFA profiles in the ridge site shows that the microbial community structure could divided into three groups each for kojii wood, sugi heart and sapwood pegs after 2 months, but those of kojii and sugi sapwood went into the one group after 12 months, resulting to only two of different community groups, one was composed with those in kojii and sugi sap wood, and the other was that in sugi heart wood. However, these two groups were no longer distinguishable after 24 months. These results suggested that the microbial community could be sifted easily in the surface of kojii wood and sugi sapwood pegs, while gradually in sugi heart wood peg, and the communities in three kinds of wood were finally sifted to the same structure during 24 months.