Abstract: An analysis on growth characteristics of Pinus elliotottii in pure and mixed forests was done. The results showed that the two forests had almost identical increment of tree height, DBH and volume in the first year; after that, those of Pinus elliotottii in pure forest had fallen rapidly. Compared with those in pure forest, the peak value was greater and the sustainable fast-growing period was longer in mixed forest.

Key words: Pinus elliotottii, pure forest, mixed forest, growth increment, growth characteristics

摘要： 对21年生不同栽植模式的湿地松生长过程分析,结果表明:在幼龄期,混交林中的湿地松与纯林的树高、胸径、材积生长量相近,此后,纯林的生长量落后于混交林,混交林的生长高峰、持续速生期均大于纯林。

关键词: 湿地松, 纯林, 混交林, 生长量, 生长特点