祁连山森林嫩梢叶部害虫发生危害调查研究  

Research on Tender Shoot and Leaf Pests Occurrence in Qilian Mountains Nature Reserve

作　　者：杨全生 汪有奎 齐多德 陈锋 王零 

机构地区：[1]甘肃祁连山国家级自然保护区管理局,甘肃张掖734000 [2]祁连山自然保护区昌岭山保护站,甘肃古浪733104 [3]祁连山自然保护区祁连保护站,甘肃武威733000

出　　处：《林业科学研究》2008年第4期571-575,共5页Forest Research

基　　金：国家林业局<甘肃祁连山国家级自然保护区水源涵养林及生物多样性保护工程>科技支撑项目(编号:国林计发[1999]241号);甘肃省科技攻关项目"祁连山水源涵养林恢复技术研究"(编号:2GS064-A41-003-02)内容

摘　　要：2004—2007年,采取线路踏查、标准地调查、直接计数与天平称量等方法,查到祁连山林区主要树种的嫩梢和叶部害虫(包括蜱螨目)10目93科679种。查明了主要嫩梢叶部害虫的发生特征、危害面积,分析了嫩梢叶部害虫发生的原因,调查了青海云杉嫩梢食叶害虫危害损失量,建立了青海云杉叶部害虫虫口密度、针叶损失率、被害侧枝鲜质量、胸径生长量损失率之间的相关数学模型,青海云杉嫩梢虫害率与嫩梢鲜质量之间的相关数学模型。From 2004 to 2007, under the walk-over survey and sample plot investigation, 10 orders 93 families and 679 species of tender shoot and leaf forest insects belonging to 93 families of 10 orders （Acarina included） were found in Qilian Mountains Nature Reserve. The occurring characteristics and area of the main tender shoot and leaf forest pests were identified and the occurrence reasons were analysed. Losing quantity of Picea crassifolia under tender shoot and leaf forest pests damaged were also investigated. The correlation model between pest density, leaf loss rate, fresh weight of damaged branch and growth, quantity loss rate of diameter breast height were set up, and the correlation model between pests rate of P. crassifolia and fresh weight of tender shoot and leaf were also concluded.

关 键 词：林木 嫩梢 叶 害虫 祁连山 

分 类 号：S718.7[农业科学—林学]