摘要
根据黑龙江省 2 2个市县病害调查的结果 ,选择与病害密切相关的 9项气象因子为指标进行聚类分析 ,将黑龙江省樟子松枯梢病危险等级划分为重发区、常发区、偶发区和安全区 4级。经证实 ,等级的划分与病害调查的实际情况基本一致。
According to the result of disease investigation for 22 counties and cities in Heilongjiang Province, the clustering analysis was made through using 9 meteorological factors closely correlated with shoot blight of Pinus sylvestris var. mongolica as main indexes. The risk grade of shoot blight is divided into 4 districts: seriously occurring district, commonly occurring district, occasionally occurring district and safe district. It proves that the division of the risk grade is almost identical with the fact of disease investigation in field.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
2004年第3期46-47,88,共3页
Journal of Northeast Forestry University
基金
1999年黑龙江省林业厅重点课题"樟子松枯梢病防治技术"的研究内容
关键词
樟子松
枯梢病
危险等级
划分
Pinus sylvestris var. mongolica
Shoot blight
Risk grade
Division
