Abstract:

In order to clear appropriate tobacco planting design in Dali areas, ecological suitability was analyzed based on fuzzy evaluation of the screened key ecology factors. The results showed that ecological suitability contribution of different ecological factors were temperature of harvest phase (17.5%)>soil organic contents (16.2%)> temperature of tobacco growth phase (14.5%)> rainfall of harvest phase (12.3%)> rainfall of tobacco growth phase (11.7%)>soil texture (11.0%)> pH (10.6%)> available chlorine of soil (6.2%)> available soil thickness (0%). Twelve planting tobacco counties were divided into three ranks. The first was Weishan, Nanjian, Midu, Binchuan, Yunlong, Yangbi, Yongping, the second was Eryuan, Xiangyun, and the third was Dali, Jianchuan and Heqing.