云杉天然林分多因素数量化生境质量评价研究

Assessment of site condition quality of the natural forest of Picea asperata by multi-factor quantitative analysis

摘要: 运用数量化理论(Ⅰ)方法研究建立了云杉天然林分多因素数量化生境质量评价模型，模型复相关系数R_ym为0.6888，R_ym　t值为11.0804，用R_ym t检验，t_0.05=1.98，t_0.05＜t_实值。并研制出云杉多因素数量化生境质量评定表和云杉多因素数量化生境质量等级评定表，可直接预测无林地生境生产力及更新后林木生长效果。

Abstract: This article utilizes quantitative theory Ⅰ to build the evaluation models of multi-factor quantitative site condition quality of the natural forest of Picea asperata (Chinese spruce). The duplicate relative coefficient of the models, R_ym, is 0.6888，R_ym t value is 11.0804. Through R_ym t test, t_0.05=1.98＜t_{actual value}. And the site quality evaluation table and site quality grade evaluation table are made, which are capable to directly predict the non-woodland productivity capacity and the growth impression.