摘要
该文首先分别建立了三阶抽样和序贯抽样模型，然后再将两种模型中的参数联系起来并加以使用，可明显提高风险决策的效率和准确性，为制定害虫防治策略提供可靠的科学依据．
Three stage and sequential sampling models are established and their parameters are linked and used. The efficiency and accuracy of the risky decision are obviously raised.
出处
《北京林业大学学报》
CAS
CSCD
北大核心
1998年第3期44-48,共5页
Journal of Beijing Forestry University
关键词
落叶松
球蚜
分布规律
三阶抽样
序贯抽样
Adelges laricis laricis Vall., distribution regular pattern,three stage sampling,sequential sampling
