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依据桔小寡鬃实蝇(Dacus dorsalis Hendel)的生物学、生态学特性,选择7项生态因子,以四川25个站点,30年的气象资料(1961～1990),用模糊综合评判法研究了该虫在四川省的适生分布范围.结果表明,攀西地区及筠连、珙县、叙永、古蔺县等的部分地区为最适分布区,其分布北界为北纬28°;龙泉山脉以东和以南的广大盆地区域是适宜分布区,其分布北界是北纬31°左右;盆地与盆周山地的过渡区域是次适生分布区.盆周东部和山地及川西高原是非适生分布区.
According to the biological and ecological characteristics of Dacus dorsalis Hendel, 7 eco-factors were selected, and 25 sites in Sichuan and 30 years of meteorological data (1961 ~ 1990) were used to study the effects of fuzzy comprehensive evaluation The results showed that Panxi region and some areas of Junlian, Juxian, Xuyong and Gulin counties were the most suitable distribution areas, with the northern boundary of the distribution being 28 ° N. Longquan The broad basins to the east and to the south of the mountain range are suitable distribution areas, and the north boundary of the distribution is about 31 ° north latitude. The transitional area between the basins and the basins is a sub-habitat distribution area. Health distribution.