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楚雄州在一九六五到一九七三年八年内,先后进行过六次飞机播种造林,七个县、三十二个播区,共造林二百八十三万多亩。这些播区,每次飞造前,都由省营林队进行精心设计,施工时,飞行部门也较为认真细致,因此,出苗多,长势好。但是,由于播后没有认真管护,致使飞播幼苗和幼树受到了严重的践踏和破坏。据一九八○年检查,全州只剩下二十四万多亩飞播林,保存率仅为有效面积的百分之九点七(有效面积
In eight years from 1965 to 1973, Chuxiong Prefecture carried out six seeding operations of aircraft, seven counties and thirty-two sown areas with a total of 2.83 million mu of afforestation. These broadcast areas are carefully designed by the provincial forestry team before the fly-fly construction. During construction, the flight department is also more careful and meticulous. Therefore, the emergence of many and good growth. However, due to the lack of serious management and protection after sowing, the airborne seedlings and saplings have been seriously trampled and destroyed. According to the inspection in 1980, there were only 240,000 acres of aerial broadcast forest left in the state, saving a rate of only 9.7% of the effective area