| 杉木人工林间伐后林下植被生物量的研究 |
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| 引用本文： | 方海波,田大伦,康文星.杉木人工林间伐后林下植被生物量的研究[J].中南林业科技大学学报,1998(1). |
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| 作者姓名： | 方海波 田大伦 康文星 |
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| 作者单位： | 中南林学院资源与环境学院!株洲，412006，中南林学院资源与环境学院!株洲，412006，中南林学院资源与环境学院!株洲，412006 |
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| 基金项目： | 林业部重点课题!“森林生态系统定位研究” |
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| 摘 要： | 对杉木人工林间伐后林下植被生物量的变化进行测算分析,结果表明,间伐以后,由于林下空间环境因子的变化,植被生物量大量增加,为对照区的3.25倍其中灌木生物量增加273.5％,由对照区占林下植被总生物量的79.78％,提高到91.75％.且灌木种类增多,并尤以层外植物较多.其生物量占灌木生物量的50.25％;草本生物量增加32.49％;林下死地被物生物量达9100kg／hm2,比对照区增加92.80％。
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| 关 键 词： | 杉木 间伐 林下植被 灌木 草本 生物量 |
Dynamics Study of the Biomass of Understory Vegetation in the Thinned Chinese Fir Stand |
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| Fang Haibo, Tian Dalun, Kang Wenxing.Dynamics Study of the Biomass of Understory Vegetation in the Thinned Chinese Fir Stand[J].Journal of Central South Forestry University,1998(1). |
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| Authors: | Fang Haibo Tian Dalun Kang Wenxing |
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| Abstract: | The biomass of understory vegetation in the thinned Chinese fir stand in Huitong watersheds have been calculated,and the changes of biomass have also been analysed. The results show that,after thinning,the biomass of understory vegetation increased greatly; the amount was 3. 25 times of that in the control stand, of this, the biomass of shrub increased by 273. 5%;the ratio of shrub biomass to understory biomass increased from 79. 78% (the control) to 91. 75% (the thinned). New species also added in the shrub stratum;many of them are climbing plants which have a big biomass,and their biomass occupied 50. 25% of the total shrub biomass. The biomass of herb also increased by 32. 49%;the biomass of dead litter amounted to 9 100 kg/hm2 and increased by 92. 80% as compared with that of the control. The decomposition ratio of dead litter also increased largely. |
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| Keywords: | Chinese fir thinning shrub herb plants biomass |
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