| 华山松木蠹象发生与环境的关系研究 |
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| 引用本文： | 张忠和,谢开立,曹葵光.华山松木蠹象发生与环境的关系研究[J].林业科学,1999,35(6):71-75. |
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| 作者姓名： | 张忠和 谢开立 曹葵光 |
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| 作者单位： | 1. 中国林业科学研究院资源昆虫研究所,昆明,650216
2. 西南林学院,昆明,650224 |
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| 摘 要： | 本文对华山松木蠹象为害木分级、蛹的空间分布型、抽样技术以及发生与环境关系进行了研究。结果表明，华山松木蠹象为害木可分为４ 级：正常木、初侵染木、近枯死木、枯死木。蛹的空间分布型为聚集分布。抽样部位以树干下部为最佳。用逐步回归分析方法，通过计算机处理调查数据得出，在９５ ％ 的可靠性下，影响华山松木蠹象种群数量的主要环境因子为林木生长势
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| 关 键 词： | 华山松木蠹象 空间分布型 抽样技术 环境因子 虫口密度 |
| 修稿时间： | 1998－06－29 |
A STUDY ON THE RELATIONSHIPS BETWEEN OCCURRENCE OF ARMAND PINE BARK-WEEVIL(PISSODES YUNNANENSIS LONGER) AND ENVIRONMENT |
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| Zhang Zhonghe,Xie Kaili,Cao Kuiguang.A STUDY ON THE RELATIONSHIPS BETWEEN OCCURRENCE OF ARMAND PINE BARK-WEEVIL(PISSODES YUNNANENSIS LONGER) AND ENVIRONMENT[J].Scientia Silvae Sinicae,1999,35(6):71-75. |
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| Authors: | Zhang Zhonghe Xie Kaili Cao Kuiguang |
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| Institution: | Zhang Zhonghe (The Research Institute of Resources Insects of Chinese Academy of Forestry\ Kunming650216) Xie Kaili\ Cao Kuiguang (Southwest Forestry College\ Kunming650224) |
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| Abstract: | This study, on one hand, researched into the relation between occurrence of armand pine bark\|weevil and envromental factors and on the other hand, it also carried out an exploration to grading of damaged trees, spatial distribution pattern of pupa and smapling technique. The results demonstrate that the trees damaged by the armand pine bark\|weevil can be graded into 4 levels: normal, primarily infectious, nearly withered, and withered. All the spatial distribution patterns of pupa are aggressive distribution, the best sampling position is the foot of tree, and under 99% reliability, the environmental factor which has major influence on the number of armand pine bark\|weevil population is growing potential of trees. |
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| Keywords: | Armand pine bark\|weevil Spatial distribution pattern Sampling technique Environmental factor Population density |
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