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倒春寒与杨树烂皮病发病的关系
引用本文:于海英,柴守权,周玉江,赵俊.倒春寒与杨树烂皮病发病的关系[J].浙江林学院学报,2011,28(6):927-930.
作者姓名:于海英  柴守权  周玉江  赵俊
作者单位:1. 国家林业局森林病虫害防治总站,辽宁沈阳,110034
2. 辽宁省实验林场,辽宁清原,113311
基金项目:科学技术部和国家林业局林业公益性行业科研专项
摘    要:对辽宁省1997-2010年倒春寒分为轻度、中度偏轻、中度和重度等4级,并对不同等级倒春寒与辽宁省杨树烂皮病Valsa sordida发病的关系进行了分析。结果表明:倒春寒与杨树烂皮病年发生总面积呈正相关(P〈0.05),与中、重度发病面积呈正相关(P〈0.01),与轻度发病面积关系未达到显著水平(P〉0.05);与轻度病害所占比率呈负相关(P〈0.01),与中、重度病害所占比率呈正相关(P〈0.01)。倒春寒发生越严重的年份,相应的杨树烂皮病发病面积越大。倒春寒发生程度越重,中、重度病害发生的面积和比率增加越明显。

关 键 词:森林保护学  倒春寒  杨树烂皮病  发病面积  发病程度  辽宁省

Relationship between Valsa sordida and abnormal coldness in spring
YU Hai-ying,CHAI Shou-quan,ZHOU Yu-jiang,ZHAO Jun.Relationship between Valsa sordida and abnormal coldness in spring[J].Journal of Zhejiang Forestry College,2011,28(6):927-930.
Authors:YU Hai-ying  CHAI Shou-quan  ZHOU Yu-jiang  ZHAO Jun
Institution:YU Hai-ying1,CHAI Shou-quan1,ZHOU Yu-jiang2,ZHAO Jun1(1.General Station of Forest Pest Management,State Forestry Administration,Shenyang 110034,Liaoning,China,2.Test Forest Centre of Liaoning Province,Qingyuan 113311,China)
Abstract:Abnormal coldness in spring from 1997 to 2010 in Liaoning was classified into four levels of low-grade,secondary-grade,third-grade and serious in this paper.The relationship between the incidence of Valsa sordida and the different level of abnormal coldness in spring was also analyzed.The results showed that there was positive correlation between the total area of disease and abnormal coldness in spring(P<0.05),the same positive correlation with the moderate and serious disease area(P<0.01),and no significa...
Keywords:forest protection  abnormal coldness in spring  Valsa sordida  epidemic area  disease incidence  Liaoning Province  
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