CAJ | 학술논문

2013—2014年在广西林业科学研究院苗圃地内对黑荆树幼苗不同月份的苗高和地径生长量进行调查，分析其幼苗的生长节律，并利用Logistic曲线和S曲线拟合黑荆树0．5年生幼苗的生长过程。结果表明，黑荆树0．5年生幼苗的生长进程具有明显的间歇性，苗高和地径均有2次生长高峰，且出现时间基本一致。Logistic曲线更适合描述其苗高和地径的生长过程，拟合的生长曲线可预测黑荆树0．5年生幼苗的生长状况，从而为育苗造林工作提供参考。依据黑荆树0．5年生幼苗地上部分的生长特点，将其生长过程划分为生长前期、速生期和盛末期3个阶段，并根据不同阶段的生长特性提出相应的育苗措施。
2013—2014년재엄서임업과학연구원묘포지내대흑형수유묘불동월빈적묘고화지경생장량진행조사，분석기유묘적생장절률，병이용Logistic곡선화S곡선의합흑형수0．5년생유묘적생장과정。결과표명，흑형수0．5년생유묘적생장진정구유명현적간헐성，묘고화지경균유2차생장고봉，차출현시간기본일치。Logistic곡선경괄합묘술기묘고화지경적생장과정，의합적생장곡선가예측흑형수0．5년생유묘적생장상황，종이위육묘조림공작제공삼고。의거흑형수0．5년생유묘지상부분적생장특점，장기생장과정화분위생장전기、속생기화성말기3개계단，병근거불동계단적생장특성제출상응적육묘조시。
Acacia mearnsii seedling at the nursery of Guangxi forestry research institute was selected as material to study the height and ground diameter growth of seedlings in different month,analyzed their growth rhythm,and then fit the growth process of semiannual seedling by using Logistic curve and S curve.The result showed that the growth process of semiannual seedling had obvious intermittently.There were two peaks of both height and basal di-ameter in semiannual seedling,and the time of occurrence was consistent.Logistic curve was more appropriate to describe the growth of height and basal diameter than S curve.The seedling growth could be well predicted by fit-ting curves,and then provided direct decisions for nursery seedling and forestation.According to above-ground part growth characteristics of the semiannual seedling,seedling growth could be dividing into three stages:early growth period,fast growth period and later growth period.Therefore,different cultivate seedlings measures should be a-dopted according to the characteristics of different growth stages.