| 油茶尺蠖动态经济阈值的研究 |
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| 引用本文： | 莫建初,李益辉.油茶尺蠖动态经济阈值的研究[J].经济林研究,1994,12(2):40-45. |
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| 作者姓名： | 莫建初 李益辉 |
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| 作者单位： | 株洲中南林学院，湖南省林业厅营林局，湖南省常宁县林业局 |
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| 基金项目： | 湖南省林业厅营林局下达的油茶低产林改造研究 |
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| 摘 要： | 运用人工模拟为害方法，研究了油茶尺蠖（ＢｉｓｔｏｎｍａｒｇｉｎａｔａＳｈｉｒａｋｉ）为害对油茶生长、发育的影响。严重为害不仅引起油茶减产，而且影响植株的生长势和生产潜力；轻度为害可使植株改变内部生理机能，生长出现补偿和超补偿现象。在研究为害程度与产量损失关系基础上，按经济阈值原理提出了油茶尺蠖的经济阈值动态模型，为油茶尺蠖的综合管理提供了理论依据。
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| 关 键 词： | 油茶尺蠖 经济阈值 动态模型 危害 |
Dynamic Economic Threshold of Oiltea Tree Geometrid |
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| MO JIANCHU,WANG WENXUE,LI
YIHUI,ZHANG CAIXUE,HU QIUFANZHU ZHIHENG,and LIU YU South Central Forestry College,Zhuzhou,Hunan l.Dynamic Economic Threshold of Oiltea Tree Geometrid[J].Economic Forest Researches,1994,12(2):40-45. |
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| Authors: | MO JIANCHU WANG WENXUE LI
YIHUI ZHANG CAIXUE HU QIUFANZHU ZHIHENG and LIU YU South Central Forestry College Zhuzhou Hunan l |
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| Institution: | MO JIANCHU,WANG WENXUE,LI
YIHUI,ZHANG CAIXUE,HU QIUFANZHU ZHIHENG,and LIU YU South Central Forestry College,Zhuzhou,Hunan 4l2006 Department of Forestry of Hunan Province Forest Bureau of Changnin
County,Hunan |
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| Abstract: | The effects of injury by oiltea tree geometrid , Biston marginata, on the
growth ofCamellia oleifera were determined with the methed of artificial simulated injury.
Results showthat serious damage not only caused the oil yield to decreae,it also affected the
developmental im-petus and productive potential of the plant.Slight injury was found to be able
to cause the plantto change its internal physiological function,giving rise to the compensative
or supercompensativephenomenon of growth.An analysis of the correlation of the degree of
pest damage to the loss ofoil yield was conducted,on the basis of which some dynamic models
regarding the economicthreshold of the pest were derived from the principle of economic
threshold. |
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| Keywords: | Biston marginata Simulated injury Economic threshold Dynamic model |
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