粤北低山丘陵地区小红栲生长过程分析
ANALYSIS OF THE GROWTH PROCESS OF CASTANOPSIS CARLESII IN THE NORTH GUANGDONG MOUNTAIN AND HILL AREAS
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摘要: 本文根据务必粤北低山丘陵地区收集小红栲解析木12株和标准木31株的资料,通过建立生长模型,分析其生长规律,并用最优分割法将小红栲生长发育过程分为5个阶段,据此进一步划分其龄级和组织龄组。结果表明,小红栲早期的树高和直径生长迅速,继而进入材积束生期和数量成熟期,从面提供该树种的营林理论论依据。Abstract: This paper analysed the growth process of Castanopsis carlesii according to the data of twelve stem analysis and thirthy-one sample trees,which were collected from the north Guangdong mountain and hill regions.Based on that we established a growth model of Castanopsis carlesii and worked its pattern.Then we divided the growth process into fivestages by the first-rate volume-period method and further set up an age-class and age-group categorisation for Castanopsis carlesii.The result showed that the Castanopsis carlesiigrew fast in the early stage in height and diameter,then cane rapid growth in volumeand quantitative maturity.Therefore this paper provides a theoretical basis for silvicultureof this species.
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Keywords:
- Castanopsis carlesii /
- Growth process /
- Growth model
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