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出 处:《林业科技》2015年第4期17-19,共3页Forestry Science & Technology
基 金:"十二五"农村领域国家科技计划课题(2012BAD22BO205)资助
摘 要:为了准确的预测小兴安岭硬阔叶混交林内三大硬阔各径阶的树高,以固定样地资料与二类调查数据为基础数据,采用5种常用的树高曲线方程对其进行了拟合和检验,从而得出三大硬阔的最优树高曲线方程为:水曲柳:H=-2.984+14.014log(D),胡桃楸:H=1.484D0.837,黄菠罗:H=1.878D0.769,拟合精度均达到98%以上。To predict the tree height of each diameter class for three hard broad-leaved forests in the mixed forest of hard broad-leaved forest in Xiaoxing'anling mountain with high accuracy, the fixed sample data and forest management investigation data were employed. The 5 commonly used tree height models were used to fit and validate the models. Based on the goodness-of-fit and validation results, the best tree height model for the three hard broad-leaved tree species were H=-2.984+14.014log(D)for Fraxinus manshuric, H=1.484D0.837 for Walnut (Juglans mandshurica), H=1.878D0.769 for Cork tree (Phellodendron amurense). The prediction accuracy was above 98% for all the models.
分 类 号:S758.54[农业科学—森林经理学]
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