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本文对瓜类昆虫群落中主要害虫与主要天敌间的相互关系进行了典范相关分析，结果表明，瓜类害虫与天敌间第一对典范相关系数ｒ＝０９９２１，第二对典范相关系数ｒ＝０９７５０，均达极显著水平，说明瓜类害虫与天敌间存在较为稳定的数量反馈机制．典型变量分析结果表明，在害虫亚系统中贡献最大的是瓜亮蓟马（ＴｈｒｉｐｓｆｌａｖｕｓＳｃｈｒａｎｋ）和朱砂叶螨（ＴｅｔｒａｎｙｃｈｕｓｃｉｎｎａｂａｒｉｎｕｓＢｏｉｓｄｕｖａｌ）．天敌亚系统中贡献最大的是菜少脉蚜茧蜂（ＤｉａｅｒｅｔｉｅｌｅｒａｐａｅＣｕｒｔｉｓ）和八斑球腹蛛（ＴｈｅｒｄｉｏｎｏｃｔｏｍａｃｕｔａｕｍＢｏｅｓｅｔＳｔｒ）．
In this paper, Canonical Correlation Analysis of the relationship between main pests and main natural enemies in the melon community showed that the first pair of Canonical Correlation Coefficient r = 0.9921, the second pair Canonical Correlation Coefficient r = 09750, all reached a very significant level, indicating that there is a more stable quantitative feedback mechanism between melon pests and predators. The results of canonical variogram analysis showed that Thrips flavus Schrank and Tetranychus cinna abarinusBoisduval were the most contributors to the pest sub-system. Among the natural enemies of the sub-system, the most important species are the Diaeretielerapae Curtis and Therdionoctoma cutaum BoesetStr.