| 间伐后杉木人工林生态系统生物产量的动态变化 |
| |
| 引用本文： | 方海波.间伐后杉木人工林生态系统生物产量的动态变化[J].中南林业科技大学学报,1999(1). |
| |
| 作者姓名： | 方海波 |
| |
| 作者单位： | 中南林学院资源与环境学院 |
| |
| 摘 要： | 对间伐后杉木人工林生态系统生物产量的动态变化的研究结果表明：间伐后生态系统生物量由对照的１８０．０５ｔ／ｈｍ２减少至１５６．５８ｔ／ｈｍ２，减少１３．０４％．系统生物量的减少主要是因为乔木层林木株数、生物量减少所致，乔木层生物量由对照的１７３．８７ｔ／ｈｍ２减少至１４２．７４ｔ／ｈｍ２，减少１７．９０％；但单株木的生物量增加了６４．０７％，尤以枝、叶和根增长迅速；林下植被生物量、死地被物生物量也大大超过对照林分，分别是对照的３．２５倍和１．９３倍
|
| 关 键 词： | 杉木人工林 生态系统 间伐 生物量 生产力 |
Biomass Dynamics of a Thinned Chinese Fir Plantation Ecosystem |
| |
| Fang Haibo,Tian Dalun,Kang Wenxing.Biomass Dynamics of a Thinned Chinese Fir Plantation Ecosystem[J].Journal of Central South Forestry University,1999(1). |
| |
| Authors: | Fang Haibo Tian Dalun Kang Wenxing |
| |
| Abstract: | The biomass in a thinned Chinese fir plantation ecosystem has been compared with that in a controlled plantation ecosystem.The results show that the biomass of the thinned Chinese fir plantation ecosystem decreased by 13.04%,from 180.05 t/hm 2 to 156.58 t/hm 2,because the biomass of the arbor stratum decreased by 17.90%,from 173.87 t/hm 2 to 142.74 t/hm 2;but the biomass of a single tree increased by 64.07% and the branch,leaf and root grew more flourishing than those in the controlled plantation; also,the biomass of the understory and the biomass of the dead litter are respectively 3.25 and 1.93 times of those in the controlled plantation ecosystem. |
| |
| Keywords: | Chinese fir plantation ecosystem thinning biomass productivity |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
