| 基于小班数据库的忻城县森林优势树种组生长模型研究 |
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| 引用本文： | 刘建敏.基于小班数据库的忻城县森林优势树种组生长模型研究[J].广西科学,2011,18(3):294-297. |
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| 作者姓名： | 刘建敏 |
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| 作者单位： | 广西南宁林业勘测设计院,广西南宁,530001 |
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| 摘 要： | 以2009年忻城县集体林区森林资源规划设计调查小班数据库的小班为样本单元,分松类、杉类、速生桉、阔叶树4个优势树种组,应用Logistic和Richard曲线回归模型拟合小班林木年龄(a)与林分每公顷蓄积量(M)的生长模型,然后根据各生长模型计算忻城县集体林区、欧洞林场、桃源林场3个林区林分连年生长率、连年生长量和平均...
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| 关 键 词： | 森林生长量 生长模型 优势树种组 数据库 |
| 收稿时间： | 2011/1/7 0:00:00 |
| 修稿时间： | 2011/3/16 0:00:00 |
Growth Model of Dominant Tree Species Based on Database of Small Forest in Xincheng County |
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| LIU Jian-min.Growth Model of Dominant Tree Species Based on Database of Small Forest in Xincheng County[J].Guangxi Sciences,2011,18(3):294-297. |
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| Authors: | LIU Jian-min |
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| Institution: | LIU Jian-min(Guangxi Nanning Forestry Survey and Design Institute,Nanning,Guangxi,530001,China) |
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| Abstract: | The sample element,from the forest inventory planning and design database in Xincheng collective forest area in 2009,is divided into four dominant kinds of tree species,including pine,broad-leaf tree,fast growing eucalyptus and Chinese fir.Logistic curve regression model and Richard curve regression model are applied to fit the regression model from the tree ages(a) and the forest trees per hectare(M),then the current annual growth percentage,the current annual increment,and the mean increment are calculate... |
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| Keywords: | forest growth growth model dominant species database |
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