期刊论文

Establishment of a diameter at breast height site index table for natural secondary oak forest in Hunan Province

中文

森林与环境学报

2096-0018

2019

39

3

265-272

10.13324/j.cnki.jfcf.2019.03.006

国家林业公益性行业科研专项“闽楠、青冈栎次生林提质增量关键技术研究与示范”（201504301）； 中南林业科技大学研究生创新基金项目（20181001）；

本校为第一机构

为了对湖南省栎类天然次生林的立地质量进行准确的分析与评价,编制了湖南栎类天然次生林胸径地位指数表.以湖南省国家森林资源连续清查(1989—2014年,共6期)复查结果中以栎类为优势树种的146个样地的399组胸径-年龄数据为建模样本,首先拟合各种胸径生长方程,根据决定系数(R2)、 残差平方和(SSE)以及均方根误差(RMSE)确定最优导向曲线方程;然后,根据胸径变动系数随年龄变化趋于平缓时的年龄作为基准年龄,根据基准年龄时胸径的绝对变动幅度以及指数级个数的比值确定指数级距(C);最后利用标准差调整法、 变动系数调整法以及相对胸径法分别编制湖南栎类天然次生林胸径地位指数表.结果表明:通过对7个...

In order to accurately analyze and evaluate the site quality of natural secondary oak forest in Hunan Province,China,a diameter at breast height (DBH) site index table of natural secondary oak forest in Hunan Province was compiled.Based on a continuous review of the national forest resources in Hunan Province from 1989 to 2014,a total of 399 pairs of DBH-age data from 146 plots dominated by oak species were used as modeling samples.First,the growth equations for DBH were fitted.The optimal guiding curve equation was determined by the coefficient of determination (R~2),the sum of squares due to...