解放以后,特别是1964年以后,云南桉树发展很快,小面积成片造林约2万亩,四旁植树近五亿株,其中种植较多的是蓝桉、赤桉、直干桉、大叶桉、柠橡桉、双肋桉等10多种。在云南,桉树一般种植于四旁,四旁植树虽然可以起到美化环境,改善农业生产条件,解决群众部分用材的作用;但是,云南平坝区主要是用于发展农业,不可能大面积植树造林,用 After the liberation, especially after 1964, Yunnan eucalyptus developed rapidly, small area of ​​about 20000 acres of film afforestation, planting nearly four hundred million trees on all sides, of which planted more is blue eucalyptus, eucalyptus, straight eucalyptus, large leaves Eucalyptus, lemon oak, double-eucalyptus and other 10 kinds. In Yunnan, eucalypts are generally planted on four sides. Although the planting of trees on four sides can beautify the environment, improve the conditions for agricultural production and solve the problem of the mass of timber, Pingba District in Yunnan Province is mainly used for the development of agriculture and it is impossible for large- use