广西杉木胸径和树高二元立木材积模型研究  

Using DBH and Tree Height for Dual Volume Model of Cunninghamia lanceolata in Guangxi

作　　者：张伟 岑巨延 秦旭东 曾春阳 徐庆玲 王科 Zhang Wei;Cen Juyan;Qin Xudong;Zeng Chunyang;Xu Qingling;Wang Ke(Guangxi Forest Inventory&Planning Institute,Nanning,Guangxi 530011,China;Guangxi State-owned Gaofeng Forest Farm,Nanning,Guangxi 530001,China;Guangxi Forest Resources and Ecological Environment Monitoring Center,Nanning,Guangxi 530028,China)

机构地区：[1]广西壮族自治区林业勘测设计院,广西南宁530011 [2]广西国有高峰林场,广西南宁530001 [3]广西森林资源与生态环境监测中心,广西南宁530028

出　　处：《广西林业科学》2020年第3期397-402,共6页Guangxi Forestry Science

基　　金：广西林业科研项目(桂林科研[2015]28号,桂林科研[2015]32号)。

摘　　要：杉木(Cunninghamia lanceolata)是广西重要的森林资源,本研究旨在建立杉木胸径和树高的二元立木材积模型,为广西森林经营提供依据。在广西的杉木中心产区和一般产区(含边缘产区)共设置276块调查样地,采集468株建模样本和163株检验样本。在干形分析的基础上,对6个备选模型进行优选,确定山本和藏(固定参数式)模型作为广西杉木二元材积模型。拟合结果为V=0.000063003×D^1.8318×H^1.0282。经检验,该模型应用精度高,参数稳定可靠,完全符合林业数表模型的精度要求,可在生产实践中推广使用。Cunninghamia lanceolata is an important forest resource in Guangxi.The purpose of this study was to studydual volume model of C.lanceolata and provide basis for forest management in Guangxi.276 plots were set in provincialcore and normal fir-producing areas of Guangxi for field survey.In total,468 individual trees were selected for modelingand 163 trees for model testing.Based on analysis of tree trunk characters,six optional models were used for test,aimingat choosing the best one.Yamamoto-Kazuhide Model(with fixed parameters)was the best suitable for dual volume modelof C.lanceolata in Guangxi,with the equation as V=0.000063×D^1.8318×H^1.0282,which performed with high accuracyand stable parameters.This model fited well with requirements in forestry data modeling and could be applied inproduction practice.

关 键 词：二元材积模型 山本和藏模型 广西 杉木 

分 类 号：S758[农业科学—森林经理学] S711[农业科学—林学]