摘要
对青铜峡防护林天牛的危害，选择多指标进行了分类，并建立每类的判别函数，为杨树天牛害虫危害的监测和综合管理提供了科学的依据和手段。
A dynamic cluster analysis was studied to know the damaged state type of Poplar longicorn beetles according to multi-index in Qingtongxia city and decision function,were set up for each type of damaged state,hence present the evidence for scientific management and monitoring population of Poplar longicorn beetles.
出处
《陕西林业科技》
北大核心
1996年第4期33-37,共5页
Shaanxi Forest Science and Technology
关键词
天牛
危害类型
判别函数
杨树
防护林
Longicorn beetles
Damaged stated Cluster
Decision function
