| 火炬松人工林胸高断面积差分模型的拟合与筛选 |
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| 引用本文： | 倪成才,王庆丰.火炬松人工林胸高断面积差分模型的拟合与筛选[J].北京林业大学学报,2011,33(3):1-7. |
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| 作者姓名： | 倪成才 王庆丰 |
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| 作者单位： | 1 北华大学林学院2 吉林省桦甸市红石镇吉林森工股份有限公司红石中密度纤维板厂 |
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| 基金项目： | 教育部留学回国人员科研启动基金项目 |
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| 摘 要： | 以148个样地的逐年观测数据为基础,建立了集约经营的火炬松人工林胸高断面积的Schumacher差分生长模型.与传统建模方法不同,本文首先拟合了胸高断面积的Schumacher收获模型,然后用代数差分法导出了相对应的差分生长模型.对随林分变化的参数的识别是以模型拟合结果为标准进行的,并得到了新的代数差分模型.方差结构模...
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| 关 键 词： | Schumacher模型 胸高断面积 差分生长模型 LRT检验 火炬松 |
| 收稿时间： | 1900-01-01 |
Model selection and fit of algebraic difference models for basal area of loblolly pine plantations |
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| NI Cheng-cai,WANG Qing-feng.Model selection and fit of algebraic difference models for basal area of loblolly pine plantations[J].Journal of Beijing Forestry University,2011,33(3):1-7. |
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| Authors: | NI Cheng-cai WANG Qing-feng |
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| Institution: | 1 College of Forest Science, Beihua University, Jilin, 132013, P. R. China; 2 Hongshi Medium Density Fiberboard Factory, Jilin Forest Industry Co., Ltd, 132405, P. R. China. |
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| Abstract: | On the basis of annual observations from 148 sample plots,we built Schumacher algebraic difference models for basal areas of loblolly pine (Pinus taeda) plantations under intensive management.Using a different modeling approach from the conventional,we first fitted basal area yield models,and then used the algebraic difference approach (ADA) to derive corresponding algebraic difference models.The method for identifying the stand-dependent coefficient is model-fitting based,and leads to new ADA basal area mo... |
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| Keywords: | Schumacher model basal area algebraic difference model LRT loblolly pine |
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