| 东北云杉相容性立木材积和地上生物量模型研建 |
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| 引用本文： | 刘琼阁,彭道黎,黄国胜,曾伟生,王雪军. 东北云杉相容性立木材积和地上生物量模型研建[J]. 北京林业大学学报, 2015, 37(2): 8-15. DOI: 10.13332/j.cnki.jbfu.2015.02.005 |
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| 作者姓名： | 刘琼阁 彭道黎 黄国胜 曾伟生 王雪军 |
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| 作者单位： | 北京林业大学林学院;国家林业局调查规划设计院 |
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| 基金项目： | 科技部科技基础性工作专项(2013FY111600-1);“十二五”农村领域国家科技计划课题(2012AA102001--5);国家级林业推广项目(201145) |
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| 摘 要： | 以东北云杉为研究对象,利用立木材积和地上生物量实测数据,通过利用总量直接控制和度量误差模型方法,研建相容的立木材积方程、地上生物量方程、生物量转换函数及各分项生物量模型。结果表明:地上生物量模型在引入树高因子后,改善了模型的精度和平均预估误差;所建立的东北云杉一元相容性方程,其立木材积和地上生物量模型的确定系数分别为0.94和0.97,平均预估误差分别为5.36%和3.55%;而二元相容性方程,立木材积和地上生物量模型的确定系数均在0.98以上,平均预估误差控制在3.06%以下。所建立的模型可以用于我国东北云杉林地上生物量的估计。
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| 关 键 词： | 东北云杉 相容性 立木材积 地上生物量 度量误差模型 |
| 收稿时间： | 2013-07-15 |
Compatible standing tree volume and above-ground biomass equations for spruce (Picea asperata) in northeastern China |
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| LIU Qiong-ge , PENG Dao-li , HUANG Guo-sheng , ZENG Wei-sheng , WANG Xue-jun. Compatible standing tree volume and above-ground biomass equations for spruce (Picea asperata) in northeastern China[J]. Journal of Beijing Forestry University, 2015, 37(2): 8-15. DOI: 10.13332/j.cnki.jbfu.2015.02.005 |
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| Authors: | LIU Qiong-ge PENG Dao-li HUANG Guo-sheng ZENG Wei-sheng WANG Xue-jun |
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| Affiliation: | 1 College of Forestry, Beijing Forestry University, Beijing, 100083, P. R. China |
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| Abstract: | Based on the data of standing tree volume and above-ground biomass for spruce in northeastern China, the compatible standing tree volume equation, above-ground biomass equation, biomass conversion function, and models for each type biomass model were constructed using two methods:direct total-biomass-control and measurement error model. The results showed that: 1 ) accuracy and mean predicting error ( MPE) by above-ground biomass equation were improved significantly by introducing tree height factor; 2 ) one-variable compatible equations of standing tree volume and above-ground biomass equations for spruce in northeastern China were developed with determination coefficients ( R2 ) of 0. 94 and 0. 97 respectively, and MPE of 5. 36% and 3. 55%; 3 ) bivariate compatible equations for both standing tree and above-ground biomass equations have higher accuracies with R2 of 0. 98 and MPE of around 3. 06%. This indicates that both one-variable and bivariate compatible models are applicable to estimate the above-ground biomass of spruce forests in northeastern China. |
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| Keywords: | spruce in northeastern China compatibility tree volume above-ground biomass measurement error model |
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