一、引言飞机播种造林是现代化造林方法之一,它的最大优点是:机械化强度大、速度快、节省劳力、成本低,在以农业为基础、以粮为綱的方針指导下,为了迅速綠化荒山、荒地,征服风砂、减少水土流失,确保农业丰收,促进林业生产发展。因而,大力采用飞机播种造林有深远的政治意义和經济意义。飞机播种造林以往很少进行,从全国来說,是从1958年开始的。仅在陝、甘、青、新、川、內蒙古等六省区进行了試播工作,1960年5月上旬国务院飞机播种指揮部在兰州 I. INTRODUCTION Aircraft sowing and afforestation is one of the modern afforestation methods. Its biggest advantages are: strong mechanization, fast speed, labor-saving and low cost. Under the guideline of agriculture-based and grain-oriented, Barren hills, wasteland, conquer the wind sand, reduce soil erosion, ensure the harvest of agriculture and promote the development of forestry production. Therefore, vigorously using aircraft sowing afforestation has far-reaching political and economic significance. Seeding and planting of aircraft seldom took place in the past, and from the entire country, it started in 1958. Only in Shaanxi, Gansu, Qinghai, Xinjiang, Sichuan, Inner Mongolia and other provinces and autonomous regions conducted a pilot broadcast, early May 1960 State Department aircraft seeding command in Lanzhou