[1]黄逢龙,焦一杰,丁辉,等.不同林分密度下杨树树冠结构与溃疡病的关系[J].南京林业大学学报(自然科学版),2010,34(04):079-82.[doi:10.3969/j.jssn.1000-2006.2010.04.018]
 HUANG Feng long,JIAO Yi jie,DING Hui,et al.The relation of crown structure with poplar canker under different stand density[J].Journal of Nanjing Forestry University(Natural Science Edition),2010,34(04):079-82.[doi:10.3969/j.jssn.1000-2006.2010.04.018]
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不同林分密度下杨树树冠结构与溃疡病的关系
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《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

卷:
34
期数:
2010年04期
页码:
079-82
栏目:
研究论文
出版日期:
2010-08-06

文章信息/Info

Title:
The relation of crown structure with poplar canker under different stand density
作者:
黄逢龙123焦一杰1丁辉4樊军锋3梁军1*
1.中国林业科学研究院森林生态环境与保护研究所,北京100091;2.江西省吉安市林业科学研究所 ,江西吉安343011; 3.西北农林科技大学林学院,陕西杨凌712100;4.宁夏青铜峡市林业局,宁夏青铜峡751600
Author(s):
HUANG Fenglong123 JIAO Yijie1 DING Hui4 FAN Junfeng3 LIANG Jun1*
1.Research Institute of Forest Ecology, Environment and Protection, CAF, Beijing 100091, China; 2.Jiangxi Province Ji’an Institute of Forestry Science, Ji’an 343011, China; 3.College of Forestry, Northwest A & F University, Yangling 712100, China; 4.Forestry Bureau of Qingtongxia, Qingtongxia 751600, China
关键词:
林分密度 杨树 树冠结构 溃疡病 病情指数
Keywords:
stand density poplar crown structure poplar canker disease index
分类号:
S763.19
DOI:
10.3969/j.jssn.1000-2006.2010.04.018
文献标志码:
A
摘要:
针对不同林分密度对树冠结构的影响以及不同密度条件下杨树树冠结构与溃疡病的关系进行 了分析。结果表明:不同密度条件下的杨树一级分枝粗度和冠层密度存在极显著差异。病情指数与 密度呈显著正相关(0.631),与冠形率呈显著负相关(-0.540)。通径分析结果表明,各树冠结构指标 对病情指数的综合作用均为负,从大到小依次为:冠幅、单株总叶面积、冠长树高比、叶面积指数 、枝下高、树冠表面积、冠层密度、一级分枝粗度、冠形率、一级分枝角度。其中以冠幅和单株总 叶面积的综合负向作用最大。因此,杨树溃疡病密度调控的树冠结构指标选择应着眼于冠幅和单株 总叶面积。在调查的5个林分中,株行距为2.0 m×3.0 m的林分密度最为合理,林中溃疡病病情最轻 。
Abstract:
The effect of different stand density to poplar crown structure and the relation between crown structure and poplar canker under different density were analyzed.The results showed that the difference of the firstorder branch diameter and canopy layer density was significant among 15 plots. Disease index was significant positive correlated with stand density(0.631) and significantly negatively correlated with crown shape ratio(-0.540). Besides, the results of path analysis showed that the general effect of all of crown structure indexes were negative, and their order was crown width, total leaf area, percentage of crown length with height, leaf area index, height under branch, crown surface area, canopy layer density, firstorder branch diameter, crown shape ratio and firstorder branch angle. The negative general effect of total leaf area and crown width was the largest. Accordingly,the choice of crown structure indexes of densitycontrol of poplar canker should emphasize crown width and total leaf area. Density (planting spacing was 2.0 m×3.0 m) of the first stand among 5 stands was optimum, and disease state of poplar canker was the lowest.

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备注/Memo

备注/Memo:
收稿日期:2009-07-24修回日期:2010-04-22基金项目:“十一五”国家科 技支撑计划(2006BAD08A11)作者简介:黄逢龙(1981—),硕士。*梁军(通信作者),研究员。Email: liangjun@caf.ac.cn。引文格式:黄逢龙,焦一杰,丁辉,等. 不同林分密度下杨树树冠结构与溃疡病 的关系[J]. 南京林业大学学报:自然科学版,2010,34(4):79-82.
更新日期/Last Update: 2010-08-06