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对杉木中心产区边缘杉木个体年轮生长规律进行了研究 ,分析了杉木年轮生长的特点 ,建立杉木个体年轮生长的时间模型 ,求算年轮指数 .通过对 2 0多年来南方涛动指数第一、第二主分量与杉木人工林生长关系的研究 ,探讨南方涛动对杉木生长的可能影响 .以南方涛动第一、第二主分量为自变量 ,建立杉木人工林年轮生长模型 ,模拟精度达 91.0 5 % ,说明南方涛动对杉木人工林胸径生长可能存在一定影响 (α =0 .0 5 ) .表 3参 19
The annual growth of Chinese fir on the edge of the fir center was studied, the characteristics of annual growth of Chinese fir were analyzed, the time model of annual growth of Chinese fir was established and the annual growth index was calculated, Index of the first and second main component of the relationship between Chinese fir plantation growth and explore the possible impact of Southern Oscillation on the growth of Chinese fir.The first and second main component of the Southern Oscillation as an independent variable to establish the Chinese fir plantation annual ring growth Model, the simulation accuracy reaches 91.0 5%, indicating that the Southern Oscillation may have a certain impact on the DBH growth of Chinese fir plantation (α = 0 .05).