The basal area growth model is the most important one in the integrated stand growth model.
断面积模型是全林模型系统中最重要的模型。
The variables in stand growth model were selected through analyzing the significant influences among the variables.
在林分生长模型建立中，通过分析变量间的显著影响选择变量。
Stand growth model was studied based on 91 sample plots data collected in the Yangliu Township, Longyang District, Baoshan Prefecture.
本文以保山市隆阳区杨柳彝族白族乡实地调查的91块云南松林样地数据研究了林分生长模型。
Single age variable stock volume growth model had low coefficient of determination, but it was improved a lot by introducing site index and stand density index in reparameterization.
林龄单因变量的蓄积量生长模型决定系数低，引入地位指数和密度指数再次参数化的生长模型可显著提高模型拟合度。
Models on thinning effects on basal growth prediction are the kernel of the model system of stand growth and yield prediction.
断面积生长间伐效应模型的研究是林分生长和收获预估模型体系研究摘要的核心内容。
The basal growth prediction is a kernel factor and foundation in the model system of stand growth and yield prediction.
断面积生长预估是林分生长和收获预估体系中的核心因子和基础。
Through the model external-test, the average precision of volume model was over 90% and the estimation precision of stand net growth was over 80%.
通过模型的外检验，蓄积平均精度可达90%以上，林分纯生长量的估计精度可达80%以上。
At last, this paper will also apply the stand density model established with artificial neural network in asset assessment of forest resources and the estimation of growth and harvest.
最后，本文还将把人工神经网络建立的林分密度模型用于森林资源资产评估，进行生长收获的预估。
At last, this paper will also apply the stand density model established with artificial neural network in asset assessment of forest resources and the estimation of growth and harvest.
最后，本文还将把人工神经网络建立的林分密度模型用于森林资源资产评估，进行生长收获的预估。
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