| 幼树不同直径对立木材积和生物量解释能力研究 |
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| 引用本文： | 曾伟生,肖前辉.幼树不同直径对立木材积和生物量解释能力研究[J].中南林业调查规划,2011,30(1):1-4. |
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| 作者姓名： | 曾伟生 肖前辉 |
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| 作者单位： | 1. 中国林科院资源信息所,北京,100091
2. 国家林业局中南林业调查规划设计院,长沙,410014 |
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| 摘 要： | 利用马尾松幼树的样木实测数据,分析不同直径与立木材积和生物量模型确定系数之间的关系.结果表明:不同高度处直径对材积和生物量变动的解释能力并没有显著差异,但相对而言胸径的解释能力一般都要好于地径;对于材积模型而言,胸径仍是最合适的解释变量,而对于生物量的解释,0.5 m处直径可能比胸径更合适.
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| 关 键 词： | 材积 生物量 幼树 确定系数 解释能力 |
Study on Explainable Ability of Various Diameters of Saplings to Individual Volume and Biomass |
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| ZENG Weisheng,XIAO Qianhui.Study on Explainable Ability of Various Diameters of Saplings to Individual Volume and Biomass[J].Central South Forest Inventory and Planning,2011,30(1):1-4. |
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| Authors: | ZENG Weisheng XIAO Qianhui |
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| Institution: | ZENG Weisheng1,XIAO Qianhui2(1.Institute of Forest Resources Information,Chinese Academy of Forestry,Beijing 100091,China,2.Central South Forest Inventory and Planning Institute of State Forestry Administration,Changsha 410014,China) |
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| Abstract: | By using the data of sample trees of Masson pine(Pinus massoniana) saplings or small young trees,the relationship between various diameters and determination coefficients of individual volume or biomass models was analyzed.The results show that explainable ability of diameters on different heights for variation of volume or biomass doesn't have statistically significant difference,but in general,the diameter at breast height(DBH) explains more variation than the diameter at root collar;and for volume model,... |
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| Keywords: | volume biomass sapling determination coefficient explainable ability |
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