桉树纸浆用材林树冠结构与林分因子的关系研究  被引量:7

Study on Relationship Between Crown Structure and Stand Factors of Eucalyptus Pulpwood Plantation

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作  者:张水花 刘丽婷[2] 苏晨辉 莫晓勇 ZHANG Shuihua;LIU Liting;SU Chenhui;MO Xiaoyong(Guangdong Province Forestry Surveying and Planning Institut;Jiangxi Academy of Forestr;College of Forestry and Landscape Architecture,South China Agriculture Universit)

机构地区:[1]广东省林业调查规划院,广东广州510520 [2]江西省林业科学院,江西南昌330032 [3]华南农业大学林学与风景园林学院,广东广州510642

出  处:《林业与环境科学》2018年第3期36-41,共6页Forestry and Environmental Science

基  金:科技部国家重点研发计划(2016YFD0600505)

摘  要:以国营雷州林业局纪家林场1至5年生的华桉1号(Eucalyptus urophylla×E.tereticornis无性系)、DH32-29(E.urophylla×E.grandis无性系)无性系为对象,通过SPSS软件曲线模拟与综合分析,研究两个无性系树冠结构与林分因子之间的关系,得出两个无性系树冠表面积、树冠体积随着年龄生长的变化规律,发现华桉1号的树冠小于DH32-29,表明华桉1号的生长潜力比DH32-29小,在生产实践中已得到验证;成功模拟了两个无性系树冠表面积、树冠体积分别与树高、胸径、冠幅及冠长之间共16个关系模型,综合比较各模型,两个无性系的树冠表面积、树冠体积均与冠长拟合最好,而与其它3个林分因子的拟合程度较差,对树冠表面积而言,与树高的拟合较好,次之为胸径;对树冠体积而言,与胸径拟合较好,次之为树高。The paper studied the relationship between crown structure and stand factors of 1 to 5 years ofEucalyptus hua'an 1 and DH32-29 on Jijia forest farm in Leizhou Forestry Bureau by SPSS curve simulation of and comprehensive analysis, it was concluded that the growth variation of crown surface area and crown volume of two clones with age, and found the crown of Eucalyptus hua'an 1 was less than DH32-29, and indicated that the growth potential of Eucalyptus hua'an 1 was less than DH32-29, and this has been proven in the production practice; and successfully simulated 16 mathematical models between the crown surface area, crown volume respectively and tree height, diameter at breast height, crown width and crown length, after comprehensive comparison between models, and found the crown surface area and crown volume were both best fitted with crown length, on the degree of fitting of the other 3 stand factors, in terms of crown surface area, it was better fitted with tree height, and followed by diameter at breast height, in terms of crown volume, it was better fitted with diameter at breast height, and followed by tree height.

关 键 词:桉树无性系 树冠结构 林分因子 数学模型 

分 类 号:S756.9[农业科学—森林经理学]

 

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