| 永安巨桉一元材种出材率表编制研究 |
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| 引用本文： | 张羽.永安巨桉一元材种出材率表编制研究[J].内蒙古林业调查设计,2008,31(3):48-51. |
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| 作者姓名： | 张羽 |
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| 作者单位： | 福建省永安国有林场,福建,永安,366000 |
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| 摘 要： | 在永安市巨桉(Eucalyptus Garndis)林分选择并设置10个标准地,分别进行林分因子调查,以4m段材长分径阶进行样木伐倒造材,应用区分求积式进行材积计算,以实际造材各材种出材率为基础拟合一元材积比方程,根据相关系选择较优的一元材积比方程进行理论造材并编制巨桉林分一元材种出材率表,并进行精度检验,表明精度可达90%以上,可为桉树生产提供一定的参考。
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| 关 键 词： | 樟子松 病害防治 营林措施 |
| 文章编号： | 1006-6993(2008)03-0048-03 |
| 修稿时间： | 2008年2月3日 |
Study on Drawing up One Dimensional Log Rate Table of Timbers of Eucalyptus garndis in Yong'an |
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| ZHANG Yu.Study on Drawing up One Dimensional Log Rate Table of Timbers of Eucalyptus garndis in Yong'an[J].Inner Mongolia Forestry Investigation and Design,2008,31(3):48-51. |
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| Authors: | ZHANG Yu |
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| Abstract: | 10 sample plots were selected in the Eucalyptus grand stand in Yong'an,and stand factors were investigated separately,the sample woods were cut down and actual bucking in 4m was carried on,The sectional measurement equation was applied to calculate the timber volume.Based on actual bucking of different kinds of timber output rate the one-dimensional quation of volume proportion was fitted,according to the relationship,a superior one-dimensional equation of volume proportion to bucking in theory was selected and a one-dimensional log rate table of timbers was drawn,and accuracy was tested,the results show that the accuracy can over 90%.thus it would be provided a references for the production of Eucalyptus grandis. |
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| Keywords: | Eucalyptus garndis log rate of timbers equation of volume proportion |
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