小陇山油松林乔木层生物量相容性线性模型  

Linear compatible models of tree layer biomass of Pinus tabulaeformis plantations in Xiaolong Mountains

作　　者：程堂仁[1] 冯菁[2] 马钦彦[3] 冯仲科[3] 张宋智 

机构地区：[1]北京林业大学国家花卉工程技术研究中心,北京100083 [2]北京林业大学图书馆,北京100083 [3]北京林业大学林学院,北京100083 [4]甘肃省小陇山林业实验局林业科学研究所,甘肃天水741020

出　　处：《生态学杂志》2008年第3期317-322,共6页Chinese Journal of Ecology

基　　金：国家自然科学基金中国西部环境和生态科学重大研究计划资助项目(90302014)

摘　　要：以甘肃小陇山的油松林分为对象,应用图形分析、相关分析和回归分析法,建立了基于森林资源调查资料的林分生物量相容性线性模型。结果表明,小陇山油松林分各组分生物量(W)与林分活立木蓄积量(V)、与林分平均胸径-平均树高-林分密度(D-2-Hρ)均存在极其显著的线性相关关系。采用代数和法,建立了W=a+bV、W=a+b(D-2-Hρ)2种形式的林分乔木层生物量相容性线性模型,以95%的可靠性估计,2种形式模型的预估精度均在95%以上。理论上证明了W=a+bV这种建立在林分水平上的生物量线性估计模型可直接推广应用到区域尺度。Based on the forest resources inventory data, and by the methods of graphic analysis, correlation analysis and regression analysis, a linear compatible model of the tree layer biomass of Pinus tabulaeformis plantations in Xiaolong Mountains, Gansu Province was established. Results showed that there existed significant linear relationships between tree biomass component （W） and growing stock volume （ V）, as well as and average trunk diameter-average tree height-stand density （-↑D2-↑Hρ）. By using algebraic sum method, two linear compatible models of tree layer biomass in the forms of W = a ＋ bV and W = a ＋ b （-↑D2-↑Hρ） were built. With 95% reliability of estimates, the two models were over 95% precision in the preliminary estimates. Theoretically, the linear compatible model of tree layer biomass based on forest stand in the form of W = a ＋ bV could be applied directly to a regional scale.

关 键 词：相容性线性模型 生物量 乔木层 油松 小陇山 代数和法 

分 类 号：S718.5[农业科学—林学]