乳源木莲生长规律的研究

Studies on the Growth Laws of Manglietia yuyuanensis

本文对人工营造的乳源木莲与杉木等混交的试验林分别不同造林年度、不同立地条件、不同混交比例，设置２１块标准地，采集２３株解析木，调查了大量数据，建立数学模型，初步揭示了９年生乳源木莲树高、胸径、形数、材积、冠幅、根系、侧枝等生长规律。

In this paper.21sample plots were set up for different planting years,site conditions and mixedproportions of the mixed experimental forests of artificially planting Manglietia yuyuanensis and Chinese fir,etc,23 analytical trees were collected.a large number of data were surveyed,some mathematic models wereestablished and the growth laws of following characteristics of 9-year-old M. yuyuanensis were preliminarilyrevealed:height.d.b.h.,form factor,volume,crown width.root system,lateral branch,etc。