By use of the aggregation indexes method, regressive model analysis method and zero frequency method, the spatial distribution patterns of Apriona germari (Hope) larva were studied.

 
  • 運用聚集度指標、回歸模型、零頻率等方法對福建閩北地區楊樹(shù)粒肩天牛幼蟲(chóng)的空間格局進(jìn)行測定。
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