云南省华山松二元立木材积模型研建

罗 胤; 林国刘; 宋永俊; 施凯泽; 徐婷婷

文章摘要

罗胤,林国刘,宋永俊,施凯泽,徐婷婷.云南省华山松二元立木材积模型研建[J].林业调查规划,2024,49(4):12-18

云南省华山松二元立木材积模型研建

Binary Standing Volume Model for Pinus amandii in Yunnan Province

DOI：

中文关键词: 华山松二元立木材积模型适用性检验林业数表编制云南省

英文关键词: Pinus amandii binary standing timber volume model applicability testing compilation of forestry data table Yunnan Province

基金项目:云南省科技厅2023 年第二批科技成果转化专项资金(530000231100001753720).

作者	单位
罗胤	云南省林业调查规划院,云南昆明 650051
林国刘	云南省林业调查规划院,云南昆明 650051
宋永俊	云南省林业调查规划院,云南昆明 650051
施凯泽	云南省林业调查规划院,云南昆明 650051
徐婷婷	云南省林业调查规划院,云南昆明 650051

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中文摘要:

选取10 个华山松二元立木材积备选模型,将建模数据带入备选模型进行计算,得出备选模型参数估计值。基于参数估计值,将建模样本中胸径、树高分别代入10 个备选模型中求算单株二元理论材积,利用单株二元理论材积与实测材积进行拟合分析,得出离差平方和(SSR)、相关系数(R²)、总相对误差(RS)、相对误差平均值(REA)、相对误差绝对平均值(REAA)和预估精度6个评价指标。评价指标对比分析结果表明:模型V=c₀D^c1H^c2各项指标明显优于其他模型,对该模型进行残差检验、 F检验分析,各项指标均达到相关技术标准规定。综合分析,可以选用模型V = 0.000 071 074 4× D^{1.852 583}×H^{0.975 667}作为华山松人工林二元立木材积表编制及森林蓄积量调查模型;选用模型V= 0.000 089 111 4×D^{1.838 706}×H^{0.891 723}作为华山松天然林二元立木材积表编制及森林蓄积量调查模型。

英文摘要:

Ten binary standing timber volume candidate models for Pinus amandii were selected, and the modeling data was input into the candidate models to calculate the estimated parameters of the candidate models. Based on parameter estimation values, the DBH and tree height in the modeling samples were respectively substituted into 10 candidate models to calculate the binary theoretical volume of the single plant. The binary theoretical volume of single plant was fitted and analyzed with the measured volume to obtain six evaluation indicators, including sum of squares for regression (SSR), correlation coefficient (R²), total relative error (RS), mean relative error (REA), absolute mean relative error (REAA), and estimation accuracy. The comparative analysis of evaluation indicators showed that the model V=c₀D^c1H^c2 had significantly better indicators than other models. Residual tests and F-tests were conducted on the model, and all indicators met the relevant technical standards. Based on comprehensive analysis, the model V = 0.000 071 074 4× D^{1.852 583}×H^{0.975 667} could be selected as the binary timber volume table compilation and forest volume investigation model for Pinus amandii plantation; the model V= 0.000 089 111 4×D^{1.838 706}×H^{0.891 723} could be selected as the binary standing timber volume table compilation and forest volume investigation model for Pinus amandii natural forests.

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