| 落叶松云冷杉林单木树高曲线的研究 |
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| 引用本文： | 曾翀,雷相东,刘宪钊,赵理文,杨英军.落叶松云冷杉林单木树高曲线的研究[J].林业科学研究,2009,22(2). |
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| 作者姓名： | 曾翀 雷相东 刘宪钊 赵理文 杨英军 |
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| 作者单位： | 1. 中国林业科学研究院资源信息研究所,北京,100091
2. 吉林省汪清林业局,吉林,汪清,133200 |
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| 基金项目： | 国家科技支撑课题，国家自然科学基金 |
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| 摘 要： | 本研究以20块近天然落叶松云冷杉林为对象,基于4 309对实测树高-胸径数据,分树种(组)对31种常见的树高曲线进行了拟合.模型评价指标除考虑决定系数、均方误、平均误差、残差图外,还重点考虑模型的预测能力,即模型的预测区间和容许区间.结果表明:选出的树高曲线除落叶松和冷杉为线性模型外,其它均为三参数的Gompertzt和Logistic模型.研究给出了所选模型95%的预测区间及表示90%误差分布的容许区间,他们从统计上提供了模型将来用于预测的可靠性.
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| 关 键 词： | 单木树高曲线 预测区间 容许区间 |
Individual Tree Height-diameter Curves of Larch-spruce-fir Forests |
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| ZENG Chong,LEI Xiang-dong,LIU Xian-zhao,ZHAO Li-wen,YANG Ying-jun.Individual Tree Height-diameter Curves of Larch-spruce-fir Forests[J].Forest Research,2009,22(2). |
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| Authors: | ZENG Chong LEI Xiang-dong LIU Xian-zhao ZHAO Li-wen YANG Ying-jun |
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| Institution: | 1.Research Institute of Forest Resource Information Techniques;CAF;Beijing 100091;China;2.Wangqing Forestry Bureau of Jilin Province;Wangqing 133200;Jilin;China |
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| Abstract: | Thirty one height curves were calibrated and validated to predict individual tree height from diameter at breast height for larch,spruce and fir,Korean pine and deciduous groups in semi-natural larch-spruce-fir forests.The data came from 20 permanent sample plots with 4 309 observations,of which 80% were used for model development and 20% for model validation.Model selection was on the base of integrated evaluation of determined coefficient,mean square error,mean bias,residual diagnosis,prediction interval ... |
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| Keywords: | tree height curve predict interval tolerant interval |
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