[1]崔佳玉,曾焕忱,王永强,等. 银瓶山自然保护区阔叶林冠层结构与辐射消减效应[J].西北林学院学报,2015,30(04):45-49.[doi:doi:10.3969/j.issn.1001-7461.2015.04.07]
　CUI Jia-yu,ZENG Huan-chen,WANG Yong-qiang,et al. Canopy Structure and Radiation Attenuation Effects of Broad-leaved Forest in Yinpingshan National Nature Reserve[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2015,30(04):45-49.[doi:doi:10.3969/j.issn.1001-7461.2015.04.07]
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 银瓶山自然保护区阔叶林冠层结构与辐射消减效应()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第30卷
期数:
2015年04期
页码:
45-49
栏目:
出版日期:
2015-07-31

文章信息/Info

Title:
 Canopy Structure and Radiation Attenuation Effects of Broad-leaved Forest in Yinpingshan National Nature Reserve
文章编号:
1001-7461(2015)04-0045-05
作者:
 崔佳玉1; 曾焕忱2; 王永强1; 张毅1; 胡益珩1; 苏志尧1*
 (1.华南农业大学 林学院，广东 广州 510642；2.东莞市林业局，广东 东莞 523000)
Author(s):
 CUI Jia-yu1;  ZENG Huan-chen2;  WANG Yong-qiang1;  ZHANG Yi1;  HU Yi-heng1;  SU Zhi-yao1*
 (1. College of Forestry, South China Agricultural University, Guangzhou, Guangdong 510642, China; 2. Dongguan Forestry Bureau, Dongguan, Guangdong 523000, China)
关键词:
 ; 林冠结构; 辐射消减; 半球面影像技术; 林下光照
Keywords:
 ; canopy structure;  radiation alleviation effect;  hemispherical photography;  understory light
分类号:
S759.93
DOI:
doi:10.3969/j.issn.1001-7461.2015.04.07
文献标志码:
A
摘要:
 为定量研究阔叶林群落的辐射消减效应，以银瓶山自然保护区常绿阔叶林为研究对象，设置2 hm2固定样地开展群落调查，并采用半球面影像技术获取冠层结构和林下光照指标，分析冠层结构对太阳辐射的消减作用。研究表明：样地林下光照（直射光、散射光和总光照）与林冠结构（叶面积指数、林冠开度）相关性极显著；林下直射光对林下总光照的贡献大于散射光，林冠结构与散射光的相关关系较直射光强；林冠结构与林木胸径有显著的相关性，而与林分密度的相关关系不显著；林冠对总光照的消减作用极显著，月际变化呈单峰分布，6月份消减量最大。
Abstract:
 In order to quantitatively understand the radiation attenuation effect of evergreen broadleaved forest, a permanent plot with an area of 2 hm2 was selected in Yinpingshan National Nature Reserve to carry out the study. Hemispherical photographic technique was adopted to extract indices of canopy structure and understory light to further analyze the effects of radiation attenuation of the canopies. The main conclusions of this study were as following: understory lights (transmitted direct solar radiation, TDir, transmitted diffuse solar radiation, TDif, and transmitted total solar radiation, TTot) were significantly correlated and canopy structure (leaf area index and canopy openness). TDir provided a greater contribution to TTot than TDif, however canopy structure had a greater influence on TDif than TDir. Canopy structure was significantly correlated with diameter at breast height, and the correlation with tree density was not significant. Total radiation attenuation was highly significantly correlated with canopy structure. Monthly variation of attenuation effect showed a unimodal distribution, and reached the maximum in June.

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备注/Memo

备注/Memo:
 收稿日期：2015-01-26修回日期：2015-04-01
基金项目：广东省科技计划项目（2013B020305008）。
作者简介：崔佳玉，女，硕士研究生，研究方向：森林生态学。E-mail:641473275@qq.com
*通信作者：苏志尧，男，教授，博士生导师，研究方向：森林生态学。E-mail:zysu@scau.edu.cn
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