飞机播种造林是摸拟森林天然更新的一种造林方式,它具有速度快、功效高、省劳力、低成本等优点,是现阶段加速大地录化的一个重要途径。在国外使用飞机播种造林已有四、五十年的历史,主要国家有美国、苏联、加拿大、日本和奥大利亚等国。这些国家从六十年代以来得到较大的发展,如地广人稀的加拿大,目前飞播造林占 Aircraft sowing and afforestation is a kind of afforestation way to simulate the natural regeneration of forests. It has the advantages of fast speed, high efficiency, labor saving and low cost. It is an important way to accelerate the recording of land at this stage. It has been four or five decades since it was used for aircraft planting in foreign countries. The major countries are the United States, the Soviet Union, Canada, Japan and Austria. These countries have enjoyed greater development since the 1960s, such as the sparsely populated Canada. At present, aerial seeding accounts for