当前位置: 首页 > 文章 > 不同密度山地速生工业原料林生物量的研究 浙江林业科技 2009,29 (3) 14-18
Position: Home > Articles > Study on Biomass of Different Density Fast-growing Industrial Forest at Mountainous Region Journal of Zhejiang Forestry Science and Technology 2009,29 (3) 14-18

不同密度山地速生工业原料林生物量的研究

作  者:
柳新红;吴林森;王军峰;葛永金;谢建秋
单  位:
浙江省丽水市林业科学研究院;丽水职业技术学院;浙江省林业科学研究院
关键词:
生物量;林分密度;工业原料林;马褂木;邓恩桉;杜英
摘  要:
通过对4年生马褂木、邓恩桉、杜英3个树种不同密度条件下山地林分生物量的调查分析,结果表明:①4年生林分平均胸径5.08 cm,树高4.96 m,蓄积25.52 m3/hm2;平均单株生物量4.18 kg,其中树干2.95 kg,树皮0.36 kg,树枝0.73 kg,树叶0.20 kg;林分平均总生物量达到16.98 t/hm2,其中树干10.43 t/hm2,树皮1.29 t/hm2,树枝2.25 t/hm2,树叶0.71 t/hm2,凋落物2.53 t/hm2;②不同密度不同树种的林分生物量存在极显著差异,1.0 m×1.8 m密度极显著大于其它密度,马褂木极显著大于其它树种。1.0 m×1.8 m密度的马褂木林分生物量达到41.71 t/hm2,极显著大于其它林分,可以作为山地短轮伐期工业原料林的主要经营模式;③在空间分布上,山地工业原料林单株生物量由基部向上逐渐减少,呈塔形分布,树干和树皮生物量主要集中在树体的1/2树高以下,枝叶主要集中在中间区段,马褂木在3~6 m树高处,邓恩桉在3~5 m树高处,杜英在1~4 m树高处,是整个林分光合作用的主要层面。
译  名:
Study on Biomass of Different Density Fast-growing Industrial Forest at Mountainous Region
作  者:
LIU Xin-hong1,WU Lin-sen2,WANG Jun-feng3,GE Yong-jin3,XIE Jian-qiu3(1.Zhejiang Forestry Academy,Hangzhou 310023,China;2.Lishui Vocational College of Zhejiang,Lishui 323000,China;3.Lishui Forestry Institute of Zhejiang,Lishui 323000,China)
关键词:
biomass;stand density;industrial forest;Liriodendron chinense;Eucalyptus dunnii;Elaeocarpus decipiens
摘  要:
Investigations were carried out on biomass of different density forests of Liriodendron chinense,Eucalyptus dunnii and Elaeocarpus decipiens at mountainous region in Lishui,Zhejiang province.The result demonstrated that 4-year stand of the above-mentioned three species had mean DBH of 5.08,height of 4.96m and volume of 25.52 m3/hm2,mean single tree biomass of 4.18kg,among which trunk of 2.95kg,bark of 0.36kg,branch of 0.73kg and leaf of 0.20kg.Mean total biomass of each species reached 16.98t/ha,among which 10.43 t/ha of trunk,1.29 t/ha of bark,2.25 t/ha of branch,0.71 t/ha of leaf and 2.53 t/ha of litter.It had great difference of forest biomass for different density and different tree species,the largest was the density of 1.0 m×1.8 m and the species of L.chinense,reached 41.71 m3/hm2,which could be recommended as the management model for short-rotation industrial forest at mountainous region.Spatial distribution of these species biomass decreased from the base to the top,aggregated at the medium,L.chinense at 3-6m,Eu.dunnii at 3-5m and E.sylvestris at 1-4m.

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