摘要
本文对西日本98个地域,21个生态因子,采用灰色聚类和模糊聚类的分析方法,研究了松材线虫病(Bursaphelenchus xylophilus)在西日本的生态地理分布图式。其结果将西日本识别为最适宜、适宜、比较适宜、一般适宜、不适宜、最不适宜6类分布环境类型,并给出了分布图。
Studies eco-geographical distribution pattern of pine wilting caused by Bursaphelenchus xylophilus in western Japan by using grey clustering and fuzzy clustering analysis methods. The distribution pattern was made up of six environmental types, and the distribution pattern map was drawn
出处
《西北林学院学报》
CSCD
1991年第1期58-63,共6页
Journal of Northwest Forestry University
关键词
松材线虫病
生态
地理分布
Bursaphelenchus xylophilus
Fuzzy clustering analysis
Grey clustering analysis
Eco-geography
Japan
