【摘要】 本文采用 2种回归分析法和 6种聚集指标 ,对微红梢斑螟危害梢在马尾松林中的分布进行了研究。结果为聚集分布 ,在此基础上 ,利用 Iwao的方法进行了序贯抽样。更多还原

【Abstract】 According to the test to six kinds of aggregation indexes and two kinds of regression analysis,the spatial distribution pattern of the suffer injury branches on Dioryctria rubella Hampson is aggregation distribution.On the basis of this,the sequential sampling is carried out.更多还原