楠木人工林凋落物的产量与月动态  

Litterfall Production and Its Monthly Dynamics of Phoebe bournei Plantation

作　　者：郑金兴[1] 杨智杰[2,3] 凌华[2,3] 陈光水[2,3] 

机构地区：[1]福建林业职业技术学院,福建南平353000 [2]福建省亚热带资源与环境重点实验室,福建福州350007 [3]福建师范大学地理科学学院,福建福州350108

出　　处：《福建师范大学学报（自然科学版）》2011年第1期88-92,共5页Journal of Fujian Normal University：Natural Science Edition

基　　金：福建省自然科学基金资助项目(D0510018;2008J0124)

摘　　要：报道了35 a生楠木(闽楠,Phoebe bournei (Hemsl.) Yang)人工林年凋落物量及月动态,结果显示:楠木人工林年凋落量为6 804.26 kg.hm-2,其中叶占大部分(63.11%),枝次之(11.59%),花果很少,而非目的树种枝叶和杂物共占22.14%;凋落物量年内变化大,4月份最大,与落叶量一致,表现为单峰型;落枝量较大值出现在5月和8月,表现为双峰型;杂物则表现出5月最大的单峰型.楠木人工林凋落物回归土壤量小于热带森林,高于其他亚热带森林类型,在亚热带地区种植楠木人工林比种植其他树种更有利于改良森林土壤.Study was carried out to determine the production and monthly dynamics of litterfall in 35-year-old Phoebe bournei plantation.The annual production of litterfall was 6 804.26 kg·hm^-2,of which 63.11%,11.59%,1.04%,2.12%,22.14% were contributed by leaves,branches,flower,fruit and other plant litters and miscellaneous,respectively.Difference of the litterfall production among months was large.Litter production in April was highest,which was consistent with leaves.The peak value of branches appeared in May and August.The change trend of other plant litters and miscellaneous was single peak type with the highest value in May.The litterfall production of Phoebe bournei plantation was smaller than of tropical forests,but more than other subtropical forests.It was a better choice to improve soil by developing Phoebe bournei plantation in subtropical zone.

关 键 词：凋落物 月动态 亚热带 楠木 

分 类 号：S718.155[农业科学—林学]