| 兴安落叶松鞘蛾防治指标模式的研究 |
| |
| 引用本文： | 金丽元,范阳.兴安落叶松鞘蛾防治指标模式的研究[J].北京林业大学学报,1995,17(3):67-72. |
| |
| 作者姓名： | 金丽元 范阳 |
| |
| 作者单位： | 黑龙江省伊春林业科学院，黑龙江省铁力县林业局 |
| |
| 摘 要： | 该文提出了兴安落叶松鞘蛾防治指标通式和计算式，以及此害虫危害等级的划分及其等级指标值。认为防治指标值只有在林分密度或林龄影响到防治成本的情况下，不同林分才有不同防治指标且防治指标值和害虫危害指标与林分立地指数无关；害虫危害等级指标与经济因素无关。
|
| 关 键 词： | 兴安落叶松鞘蛾，兴安落叶松，防治指标，模式 |
Study on the Prevention Quota Model of Coleophora dahurica Falk |
| |
| Jin Liyuan ,Gu Xuefeng, Zhang Xinchun.Study on the Prevention Quota Model of Coleophora dahurica Falk[J].Journal of Beijing Forestry University,1995,17(3):67-72. |
| |
| Authors: | Jin Liyuan Gu Xuefeng Zhang Xinchun |
| |
| Institution: | Jin Liyuan ;Gu Xuefeng; Zhang Xinchun(Yichun Forestry Academy in Heilongjiang Province 153000)Fan Yang ;Sun Fengyun(Tieli Forestry Bureau in Heilongjiang Province 153000) |
| |
| Abstract: | This paper puts forward the general and calculating formula of the prevention quo-ta model of Coleophora daghurica Falk,as well as the classification and quota value of the pest’sdamage. It is held that the prevention quota values are only different when stand density ortree’s age affect the prevention cost. Prevention values have relations with pest damage quotaand stand quota. Pest damage classification quota have no relations with econornic factors. |
| |
| Keywords: | Coleophora dahurica Falk Larix gmelini prevention quota model |
| 本文献已被 CNKI 维普 等数据库收录！ |
