不同立地条件下杉木径生长过程研究

Study on the Growth Process of Cunninghamia lanceolata Diameter under Different Site Conditions

本研究基于几种常见的理论生长方程对将乐国有林场不同立地条件下杉木人工林胸径的生长过程进行了拟合,并对不同立地条件下的杉木数量成熟龄进行了分析。结果表明:不同立地条件的胸径生长最优方程不同,其中地位指数为10和18的最优模型为Weibull方程,地位指数为12和16的最优模型为Richards方程,地位指数为14的最优模型为Korf方程,不同地位指数下杉木的数量成熟龄也有差异,基本上表现为随着地位指数的增加而缩短。

Based on several common growth equations, we fitted the growth process of DBH of Chinese fir plantation under different site conditions in Jiangle state-owned forest farm and analyzed the mature age of Chinese fir under different site conditions. Results show that the optimal DBH growth equation under the different site conditions is different, the optimal model with position index 10 and 18 is Weibull equation, the optimal model with status index 12 and 16 is Richards equation, the optimal model with status index 14 is Korf equation, the mature age of Cunninghamia lanceolata under different status index was also different and it decreases with the increase of status index.