福建杉木半穿刺线虫病分布及相关因素的调查研究  

Analysis on Natural Distribution and Related Factors of Tylenchulus semipenetrans in Fujian Province

作　　者：蔡秋锦[1] 罗群荣 陈国顺 

机构地区：[1]福建林学院资源与环境系,福建南平353001 [2]福建省邵武市林业局,福建邵武354000 [3]福建省三明市梅列区林业局,福建三明365000

出　　处：《林业科学研究》1999年第5期524-529,共6页Forest Research

基　　金：福建省教委自然科学基金

摘　　要：研究结果表明，半穿刺线虫病在福建省各杉木产区均有分布，其中顺昌、建阳、沙县、南平、政和、连江等县（市）受害较重；苗圃受害较轻。该线虫自然分布与土壤质地、坡向、林龄３ 个生态因子呈极显著相关；与立地条件、炭疽病病情指数显著相关；与土壤类型相关不显著。轻壤土与砂壤土、幼龄林与中龄林、阴坡线虫数量较多。不论生态因子如何，该线虫集中分布于０～４０ ｃｍ 土层中，但不同林龄、土壤质地。Study results indicate: Tylenchulus semipenetrans distribution in Fujian Province widely,but the damage is very serious in Shuncang,Nanping,Jianyang,and Sa County,etc. The natural distribution of the nematodes is notably related to soil texture,slope trend,tree age,etc. In light soil,sandy soil,or young growth,middle aged growth or shade slope,the nematodes has a big distribution. No matter what the ecology factors are,the most nematodes distribute in 0～40 cm depth soil. The age of Cunninghamia lanceolata has notably effect on the vertical distribution of the nematode,so has soil texture and the slope trend.

关 键 词：半穿刺线虫病 自然分布 垂直分布 杉木 

分 类 号：S763.110.3[农业科学—森林保护学]