中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 乳源木莲冠层特性与生长的相关及通径分析 南京林业大学学报(自然科学版) 2005,18 (6) 61-64
Position: Home > Articles > The Path and Correlation Analysis Between Crown Characteristics and Stemwood Growth of Manglietia yuyuanensis Law. Journal of Nanjing Forestry University(Natural Sciences Edition) 2005,18 (6) 61-64

乳源木莲冠层特性与生长的相关及通径分析

作  者：
李生;曹永慧;陈存及
单  位：
福建农林大学林学院;中国林业科学研究院亚热带林业研究所
关键词：
乳源木莲;冠层特性,通径分析
摘  要：
对17年生杉木×乳源木莲混交试验林中的乳源木莲冠层特性与材积生长进行相关分析,结果表明:乳源木莲材积指数(VI)与各冠层因子间的相关系数不同,除叶面积指数(LAI)、冠层密度(CLD)外,单株总叶面积(TLA)、树冠表面积(TCA)及冠形率(CSR)与材积指数均达极显著正相关。通径分析表明:TCA对材积生长的直接作用最大(Pyxi=1.201 3),是木莲材积生长的主导因子,TLA、CLD、CSR通过TCA起作用,5个主要冠层参数对乳源木莲材积生长相对重要性的大小顺序依次为TCA,LAI,TLA,CSR,CLD。在分析冠层空间结构对材积生长的影响中发现:垂直方向上,冠层中、下层的叶面积对材积生长有决定性作用;水平方向上,以叶面积多分布于内部、外部的结构有利于乳源木莲材积生长,而中部叶面积的作用较小。
译  名：
The Path and Correlation Analysis Between Crown Characteristics and Stemwood Growth of Manglietia yuyuanensis Law.
作  者：
LI Sheng~1,CAO Yong-hui~1,CHEN Cun-ji~2(1.Research Institute of Subtropical Forestry CAF,Fuyang 311400,China;2.College of Forest Fujian Agriculture and Forestry University,Fuzhou 353000,China)
关键词：
Manglietia yuyuanensis Law.;Crown characteristics;Path analysis
摘  要：
The stands of 17-year-old Manglietia yuyuanensis Law.mixed with Chinese fir were researched by analysing the relationship between crown characteristics and growth of M.yuyuanensis Law.The results showed that the stemwood growth index(VI) was positively related to the total leaf area(TLA),surface area of crown(TCA) and crown shape ratio(CSR),but negatively related to the leaf area index(LAI) and crown layer density(CLD).The path analysis showed that TCA had the biggest direct effect(Pyx_i=1.2013)on the stemwood growth.In the five main growth parameters of crown layer,based on the importance of relationships with stemwood growth,the order of them was TCA,LAI,TLA,CSR and CLD.The effects of spatial configuration of crown and stemwood growth were analysed.It showed that in the vertical distribution of crown foliage,the down and middle layer was decisive to the stemwood growth,the role of upper layers was secondary.In the horizontal distribution,inner and outer parts had the great contribution to the growth,but the middle parts had less.The study of reasonable crown structure of M.yuyuanensis could be used to direct the big timber cultivation of M.yuyuanensis.

相似文章

导出引用
计量
文章访问数: 10
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46