期刊论文

Comparison of litter decomposition Dynamic of Pinus Massoniana plantation in different Litter placed position

中文

贵州林业科技

2096-904X

2016

44

2

8-12

10.16709/j.cnki.gzlykj.2016.02.002

本校为第一机构

以贵州省龙里林场12年马尾松人工林为研究对象,对比研究了不同放置方式下3种密度马尾松凋落物分解动态。结果表明,马尾松人工林表层和底层凋落物损失率在不同密度间变化趋势均相近,大致呈指数衰减方式降低。表层凋落物指数衰减模型S1200为R（t）=e（-0.058t）,S1767为R（t）=e（-0.057t）,S2167为R（t）=e（-0.064t）,表层凋落物在高密度林分分解较快;底层凋落物指数衰减模型S1200为R（t）=e（-0.056t）,S1767为R（t）=e（-0.062t）,S2167为R（t）=e（-0.076t）,林分密度越高底层凋落物分解越快。凋落物周转期在3.3-4.5年范围,底层凋落物周转期较之表层短约半年。放置方式的差异凋落物分解动态、...

Taking the 12- year- old Pinus Massoniana plantations at Longli Forest Farm in Guizhou Province as a study,litter decomposing dynamics of three density in different litter placed position were examined. The results were as follows ： loss ratio of surface and undersurface litter had a similar trend ＂exponential decay type＂among plantations of different density. Surface litter ＂exponential decay model＂of S1200 was R（ t） = e（-0.058 t）,S1767 R（ t） =e（-0. 057） t,and S2167 R（t） = e（-0. 064 t）,surface litter decomposed rapid in high d...