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当前位置: 首页 > 文章 > 秃杉人工林生物量与生产力的变化规律 东北林业大学学报 2008,36 (9) 17-18+27
Position: Home > Articles > Changing Regularity of Biomass and Productivity of Taiwania flousiana Plantation Journal of Northeast Forestry University 2008,36 (9) 17-18+27

秃杉人工林生物量与生产力的变化规律

作  者：
何斌;刁海林;黄恒川;黄承标;黄海仲;曹明;韦明宝
单  位：
广西南丹县山口林场;广西大学
关键词：
秃杉人工林;林分年龄;生物量;生产力
摘  要：
对广西南丹山口林场秃杉人工林的生物量和生产力及其随林分年龄(8、14和28年生)增长的变化趋势进行了研究。结果表明,林分平均木和各器官(除树叶和枯枝外)生物量随林分年龄增加而增加,平均木和林分以14～28年生的增加量最大。林木各器官比例与林分年龄相关,林分年龄增加,干材和干皮生物量组成比例随之增加,而树叶和活枝则呈下降趋势。8和14年生各器官所占百分比由大到小依次为:干>枝>叶或根>皮,28年生则为:干>根>枝>皮>叶。林分生物量随林分年龄的增大而逐渐积累,8、14和28年生的林分乔木层生物量分别为60.17、112.98和247.61t·hm-2,其中经济生物量(干材)分别为26.92、60.27和155.72t·hm-2,林分乔木层净生产力分别为7.52、8.07和8.84t·hm-2·a-1,林下植被生物量也有相似的变化趋势。
译  名：
Changing Regularity of Biomass and Productivity of Taiwania flousiana Plantation
作  者：
He Bin, Diao Hailin(School of Forestry, Guangxi University, Nanning 530004, P. R. China); Huang Hengchuan(Shankou Forest Farm of Nandan County, Guangxi Province); Huang Chengbiao(Guangxi University); Huang Haizhong, Cao Ming, Wei Mingbao(Shankou Forest Farm of Nandan County, Guangxi Province)
关键词：
Taiwania flousiana plantation; Stand ages; Biomasses; Productivities
摘  要：
An experiment was conducted to study the biomass and productivity as well as their changes with growth of stands in Taiwania flousiana plantations of three different stand ages (8-year-old, 14-year-old and 28-year-old) in Shankou Forest Farm of Nandan County, Guangxi Province. Results showed that with stand age increasing, biomasses of stand average tree and every organ (except leaf and dead branch) increased. The annual growth speed of biomass was the fastest at 14～28 years for stand average tree and the stand. The percentages of biomass of different organs were related with stand age, namely with stand age increasing, the percentages of stem biomass and bark biomass increased, while biomasses of leaf and living branch decreased. The percentages of organ biomass showed stem>branch>leaf or root>bark for 8-year-old and 14-year-old stands and stem>root>branch>bark>leaf for 28-year-old ones. The biomass of T. flousiana stand increased with stand age. The arbor layer biomass of stands aged of 8, 14, 28 years were 60.17, 112.98 and 247.61 t·hm-2 respectively, including 26.92, 60.27, 155.72 t·hm-2 of economic biomass (stem), and the net productivities of the stands were 7.52, 8.07 and 8.84 t·hm-2·a-1 respectively. Similar change tendency was also found for undergrowth biomass.

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