选择福建省建阳范桥国有林场16年生杉木×闽粤栲混交林与杉木纯林为研究对象,对不同坡位不同林分养分积累量进行分析对比。结果表明:上坡立地条件下,杉木纯林乔木层N、P、K养分积累量均大于杉木×闽粤栲混交林。中坡和下坡林分乔木层养分积累量则表现为混交林大于杉木纯林。不同林分乔木层养分积累量均占整个林分养分积累总量的90%以上,且表现为N>K>P和下坡>中坡>上坡。上坡杉木纯林的灌木层和草本层N、P积累量均大于混交林,下坡林分的灌木层N、P、K养分积累量均表现为杉木×闽粤栲混交林大于杉木纯林。不同林分凋落物的N和P的积累量均大大超过草本层和灌木层的积累量。 The 16-year-old Chinese fir × M. yuyuanensis mixed forest and Cunninghamia lanceolata plantation in the National Forest Farm of Fanyang, Fujian Province were selected as the research object, and the nutrient accumulation of different stands was analyzed and compared. The results showed that the accumulation of N, P and K in the layer of pure Chinese fir was higher than that of the mixed plantation of Fir and Fokienia hodginsii. The accumulation of nutrients in mid-level and downhill stands of arbor layer showed that the mixed forest was larger than that of pure Chinese fir plantation. The accumulation of nutrients in arbor layer of different stands accounted for over 90% of the total accumulations of nutrients in stands, and showed N> K> P and downhill> mid-slope> uphill. The accumulation of N and P in the shrub layer and the herb layer in the upper pure Chinese fir plantation were higher than that in the mixed forest. The N, P and K accumulation in the shrub layer of the downhill forest was higher than that in the pure Chinese fir plantation . The accumulation of N and P in different stand litter significantly exceeded the accumulation of herb layer and shrub layer.