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当前位置: 首页 > 文章 > 天山野苹果林苹果小吉丁虫虫口密度与林分因子的关系 中国植保导刊 2019 (11) 42-46
Position: Home > Articles > 天山野苹果林苹果小吉丁虫虫口密度与林分因子的关系 China Plant Protection 2019 (11) 42-46

天山野苹果林苹果小吉丁虫虫口密度与林分因子的关系

作  者：
孔婷婷;刘爱华;张静文
单  位：
新疆林业科学院森林生态研究所
关键词：
新疆野苹果;苹果小吉丁虫;虫口密度;林分因子;海拔;胸径
摘  要：
为了解天山野苹果林苹果小吉丁虫的发生与林分因子的关系,就海拔、坡度、树高、胸径、枝粗和枝方位等6个因子对苹果小吉丁虫虫口密度的影响进行了分析.结果表明,苹果小吉丁虫的虫口密度在海拔1 350~1450 m显著高于1 150~1 250 m和1 250~1350 m,坡度10°~20°显著高于20°~30°,胸径>30 cm的野苹果树显著高于胸径<30 cm.相关分析表明,苹果小吉丁虫虫口密度与海拔、坡度呈显著负相关,与野苹果树胸径、枝粗呈显著正相关.利用海拔、胸径这2个关键因子与苹果小吉丁虫虫口密度的关系建立多元线性回归方程,以期为苹果小吉丁虫的防控提供一定的依据.
作  者：
Kong Tingting;Liu Aihua;Zhang Jingwen;Institute of Forest Ecology, Xinjiang Academy of Forestry;
关键词：
Malus sieversii;;Agrilus mali Matsumura;;population density;;stand factors;;altitude;;DBH
摘  要：
To understand relationship between occurrence of Agrilus mali Matsumura and the stand factors of wild apple foresrty, six factors were evaluated, including altitude, gradient, tree height,diameter at breast height(DBH), branch thick and orientation. The results showed that the pest population density at 1350-1450 m was significantly higher than that at 1150-1250 m and 1250-1350 m, higher in gradient of 10°-20° than that of 20°-30°and higher in the DBH above 30 cm than that under 30 cm. There was a significant negative correlation between population density and elevation, as well as gradient, while a significant positive correlation between population density and DBH or branch thick of wild apple trees. Multiple linear regression equation was established between population density and two key factors of altitude and DBH, so as to provide some basis for the prevention and control of A. mali.

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