福建林业科技Issue(3)：50-53,4.DOI:10.13428/j.cnki.fjlk.2015.03.010
不同坡位杉木米老排混交林养分积累与分配比较
Comparison of Nutrient Accumulation and Distribution of Chinese fir Mixed Plantation with Mytilaria laosensis in Different Slope Positions
摘要
Abstract
Objected with the plantations of 16-year-old Cunninghamia lanceolata and its mixed forest with Mytilaria laosensis in Fan-qiao State-owned Forest Farm of Jianyan City in Fujian Province,the N,P,K accumulation and distribution of arbor layer,understory vegetation and litter layer of the pure stand and mixed forest in different slope positions was separately determined and ana-lyzed.Main results showed that:compared with Chinese fir pure plantation in uphill and mid slope stand conditions,both of N and P accumulation of the mixed forest were more.The ranking of the accumulation of N,P and K in arbor layer showed that N>K>P,and downhill>mid slope>uphill,which amounted percentage from 90.25%to 99.35% of the total nutrient accumulation in the whole stands.Compared with the litter layer of the mixed stand in different slope positions,all of N distribution percentages of understory vegetation were lower.For K distribution percentages of understory vegetation in different slope positions,which amounted percentage from 0.63%to 6.65%,were higher than the litter layer.关键词
杉木/米老排/养分积累/林下植被/凋落物层Key words
Chinese fir/Mytilaria laosensis/nutrient accumulation/understory vegetation/litter layer分类
农业科技引用本文复制引用
陈志云..不同坡位杉木米老排混交林养分积累与分配比较[J].福建林业科技,2015,(3):50-53,4.基金项目
福建省科技重大专项 （）
