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通过对重庆市市中区和近郊区４个监测地区的地衣植物种类分布，及生长状况的调查分析，说明地衣的生长情况与大气污染程度的关系；利用地衣监测，评价重庆大气质量。
Through the investigation of lichen species distribution and growth in four monitoring areas of downtown Chongqing and its suburbs, the relationship between the growth of lichens and the degree of atmospheric pollution was described. The lichen monitoring was used to evaluate the atmospheric quality of Chongqing.