一代杉木林伐后(29年生)剩余物分解率的研究

Research on Slash Decomposition Rate of the First Rotation Chinese Fir Plantation of 29 year old after Felling

对福建南平峡阳国有林场 2 9年生的 1代杉木人工林采伐后 32个月的采伐剩余物分解速率进行研究 ,结果表明 :采伐后 1 6个月叶的分解率为 92 .65%,而枝的分解率仅为 2 8.79%,随后 ,分解速度急剧减慢 ;采伐后 32个月 ,枝的分解率为 49.59%;采伐剩余物中枝的分解试验观测至少要进行 4～

In the first rotation stands of 29 year old Chinese fir plantation in Xiayang State Forest Farm, Nanping, Fujian, the study on the decomposition rate of logging slash for 32 months was made The results showed that:16 months after felling, leaves decomposition rate was 92 65% and branch decomposition rate was only 28 79%, and then slash decomposition rate slowed down rapidly;32 months after felling, branch decomposition rate was 49 59%; study on the decomposition rate of branch slash should be lasted at least 4 to 5 years in order to get dependable data