洞庭湖区“三杉”二元立木材积表参数校正修复研究  

Study on Parameter Correction and Restoration of Dongting Lake Area "SanShan" Binary Tree Volume Table

作　　者：刘圣瑜 黄鹏飞 温志高 Liu Shengyu;Huang Pengfei;Wen Zhigao(Forestry Bureau of Chenxi County,Chenxi 419500,Hunan,China)

机构地区：[1]湖南省辰溪县林业局,湖南辰溪419500

出　　处：《绿色科技》2023年第23期124-128,151,共6页Journal of Green Science and Technology

摘　　要：在林业调查中发现《湖南省森林资源调查常用数表》以下简称《常用数表》中洞庭湖区“三杉”二元立木材积表个别参数印刷错误。通过对多项式参数的逐个分析、用Excel数据挖掘方法根据仅有的立木材积表资料进行逆向多元回归分析与最小二乘法等方式试图寻找错误参数,确认其可用参数与错误参数的关系联列出等式方程,对其方程求解出参数列阵,再用平均指标分析法作进一步比较分析研究。几种方法结果比较表明:以平均指标分析中的胸径加权平均值求得参数为最佳,数据完全吻合,可以推广应用。In a forestry survey,it was discovered that there was a printing error in the binary volume table of Dongting Lake Area "SanShan" in the Commonly Used Survey Tables for Forest Resources in Hunan Province,hereinafter referred to as the Commonly Used Survey Tables.The paper attempted to find the erroneous parameters through individual analysis of polynomial parameters and the use of Excel data mining methods to conduct reverse multiple regression analysis and least squares methods based on the limited volume table data.The relationship between the usable parameters and the erroneous parameters was established through equation equations,and the parameter matrix was solved through equation solving.Then,further comparative analysis was conducted using the average index analysis method.Among several methods,it was found that using the weighted average of DBH from average index analysis to obtain the parameters was the best,with complete data agreement,and could be applied generally.

关 键 词：森林调查 洞庭湖区“三杉” 多项式参数 校正修复研究 

分 类 号：S7[农业科学—林学]