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分析结果表明:(1)树高与树龄,材积与树龄的4种模拟导向曲线中,以二次抛物线最相关,相关系数达0.9860～0.9998。(2)树高生长的数量成熟龄变动范围较宽。树种间以及同一树种的个体间均存在差异。(3)盱眙县马尾松生长随着树龄的增加,地位级呈逐渐上升趋势。(4)马尾松、黑松、侧柏生长差异极显著,薄层土上马尾松的材积平均生长量是同类土壤上黑松、侧柏的3～5倍。
The results show that: (1) Among the four simulated curves of tree height, tree age, volume and age, the quadratic parabola is the most relevant and the correlation coefficient is 0.9860 ~ 0.9998. (2) The number of tree height growth A wide range of mature ages. Differences exist between species and individuals of the same tree species. (3) The growth of Pinus massoniana in Qionglai County increased gradually with the increase of tree age. (4) The difference of Pinus massoniana, Pinus thunbergii and Platycladus orientalis growth was extremely significant. The average volume growth of Pinus massoniana on the thin layer soil was 3 ~ 5 times higher than Pinus thunbergii and Platycladus orientalis on the same soil.