用主成分分析构造竞争指标并建立单木生长模型

Using Principle Elememts Analysis to Form Competition Index and Up Individual Tree Growth Model

本文用主成分分析的方法构造竞争指标并建立单木生长模型。结果表明:该竞争指标对杉木人工林适用,所建立的单木生长模型符合精度要求,可用于预估林分生长。

This paper forms competition index by means of principle elements analysis and sets up individual tree growth model. Result shows, This competition index is suitable to Chinese fir man-made forest, and individual tree growth model accords with the demands of accuracy, it can be used to estimate growth of stands.