摘要
测定了 9年生鹅掌楸人工林生物量并建立其估算模型 ,分析了生物量分配规律及林分生产力水平。结果表明 :9年生鹅掌楸人工林总生物量为 6 4 .538t/hm2 ,乔木层、林下植物层和凋落物所占比例分别为 :93.4 0 %、3.6 3%、2 .97%。乔木层各器官依生物量大小排序为 :干、根、枝、皮、叶 ,所占比例依次为 :6 2 .79%、16 .6 1%、11.11%、7.12 %、2 .4 7%。林分净生产力为 7.171t/hm2 ·a。
Biomass of 9 year aged artificial Liriodendron chinense were surveied and prediction model was established.The authors analysed allocation regularity of biomass and productive forces of stands.The results showed that the total biomass were 64.538t/hm 2,percentage of arbor layer,under arbor layer and litter were 93.40%,3.63%,2.97% respectively.The organs with biomass from high to low were stem,root,branch,bark,leaf,and corresponding percentage were 62.79%, 16.61%, 11.11%, 7.12%, 2.47% respectively. The net productive forces was 7.171 t/hm 2·a.
出处
《江西林业科技》
2000年第5期4-9,共6页
Jiangxi Forestry Science and Technology
基金
国家造林项目阔叶树速生丰产技术研究及推广--鹅掌楸示范林研究
关键词
鹅掌楸
人工林
生物量
生产力
Artificial Liriodendron chinense
Biomass
Productive forces
