In this paper three kinds of ordination methods, polar ordination (P0), principal components analysis (PCA) and fuzzy grouping analysis (FGA) are used to study the insect community of ten typical type of grassland in Alty region.

• 本研究对阿勒泰地区有代表性的10种类型草场上昆虫群落利用极点排序法、主分量分析法和模糊聚类法进行了排序研究。