松材线虫病发生林地松树枯死规律研究  

A study on the regular patterns of death of pine trees in lands of occurrence of pine nematode disease

作　　者：周勤明[1] 劳冲 徐绍清[1] 沈幼莲 Zhou Qinming;Lao Chong;Xu Shaoqing;Shen Youlian(Cixi Forestry Technology Extension Centre of Zhejiang 315300;Cixi Forest Pest Control and Quarantine Station of Zhejiang 315300)

机构地区：[1]浙江省慈溪市林特技术推广中心 [2]浙江省慈溪市森林病虫防治检疫站,315300

出　　处：《华东森林经理》2016年第4期53-56,共4页East China Forest Management

基　　金：慈溪市科技项目"松材线虫病发生区松林可持续经营研究"(CN2008022)

摘　　要：对马尾松-黑松混交林松材线虫病疫木构成及特点进行了研究,结果表明:黑松死亡率高于马尾松,两者比例为1:0.39;7月15日至8月15日是死亡高峰期,早期:中期:近期=1:0.22:0.10;枯死树径阶构成与林相自然径阶一致,平均为17.5cm;枯死木的质量明显低于健康木,健康木重量:胸径=7.857kg/cm,而枯死木重量:胸径=2.647kg/cm,后者只及前者的33.7%。In this paper, constitute and characteristics of disease death wood caused by Bursaphelenchusxylophilus from forest of the Pinus massoniana mixed with P. thunbergii were studied. The resultsshowed as follows: The mortality of P. thunbergii was higher than that of P. massoniana, and theproportion was for 1:0.39. Death peak of pine trees was in the period between July 15 with August 15,and the proportion was: early: middle: recent=1:0.22:0.10. Diameter constitute of dead pine wood wasequal to natural forest, with an average of 17.5 cm. Quality of dead wood was significantly poorer thanthe healthy wood, and healthy wood’s weight:diameter at breast height=7.857 kg/cm. At the same time,the value of dead wood was 2.647 kg/cm. It was seeded that the latter was 33.7% of the former

关 键 词：马尾松 黑松 松材线虫病 松墨天牛 松疫木 

分 类 号：S763.16[农业科学—森林保护学]