乡土树种山油柑的生长过程分析

Analysis on the growth process of Acronychia pedunculata in Baiyunshan Resort

对广州市白云山风景名胜区的乡土树种山油柑(Acronychiapedunculata)进行了标准地调查,对标准木进行了树干解析,通过建立生长模型,分析其生长规律,用最优分割法将山油柑划分为5个阶段.结果表明,5～15年是山油柑速生前期;树高连年生长量高峰期出现在第6年(0 40m),胸径高峰期出现在第10年(0 47cm);在第35年时材积平均生长量和连年生长量相交,山油柑达到数量成熟龄.

The sample plot investigation and stem analysis of eight sample trees in the Baiyunshan resort, Guangzhou, were conducted to study the growth process of Acronychia pedunculata. Based on the investigation and analysis we established a growth model of Acronychia pedunculata, worked out growth pattern and divided the growth process into five stages by the firstrate volumeperiod method. The results indicated that earlier rapid stage was between the fifth and 15th year after planting. The peak of annual height growth was in the sixth year, which was ahead of the diameter growth peak appearing in the tenth year. In the 35th year the annual volume growth curve and mean annual growth curve intercrossed, which indicated that Acronychia pedunculata reached quantitative maturity.