本文系统研究了水平角规在固定样点监测材积生长动态中的理论与方法；
This paper systematlly deals with the applied theory and method of angle measuring in volume growing estimation in permanent point sampling.
在林业生产实践中，用灰色系统模型预测人工林材积生长率有其适用价值。
It is worth while to apply the gray system model to predict the forest growth in practice.
在杉木子代测定中，观测了各年到16年（或7年）的树高，胸径和材积生长。
Stem height, diameter and volume growth were measured at various ages up to that of 16 (or 7) in a Chinese Fir progeny test.
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