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白蚁危害影响幼杉成活和成年杉林生长量的研究

Study on the harm of termites to the survial rate of young Cunninghamia lanceolata Hook and their offect on the growth quantity of fully grown trees

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【作者】 陈镈尧张尽忠徐连喜马军曹前进

【Author】 Chen Buo-yao(Anhui Agricultural University, Hefei, 230061) Zhang Jin-zhong (Langyashan Forest Park,Chuzhou) Xu Lian-xi; Ma Jun; Cao Qian-jing (Anhui Agricultural University)

【机构】 安徽农业大学!合肥230036琅琊山森林公园!滁州239012

【摘要】 白蚁危害幼杉严重,在大四方林区4块标准地1994年调查,生长不良株率9—19.5%,死亡株率达14.84—24.10%,幼杉的长势较差。在老木坞林区杉木成林的3块标准地上的3株解析木分析,胸径损失率29.1%,树高生长损失12.7%,材积总生长量损失率为58.3%,每亩损失材积7.527m3。

【Abstract】 Young Cunninghamia lanceolata Hook were seriously damaged by termites, Investi-gation was conducted on four sample areas of Dasiqang is 1994: The unhealthy rate of plant in 9 -19. 5 %, death rate of plant is 14. 84 - 24-.10%, the young Cunninghamia lanceolata were in bad condition. Fully grown trees of three samiple areas of Laomuwu wood were analysed: Loss rate of breast radius is 29.1% of hight of tree is 12. 7%, of tolal gowth quantity is 58. 3%. Loss of quan- tity per mou is 7. 527m

  • 【分类号】S763
  • 【被引频次】2
  • 【下载频次】31
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