我国西北地区,沙漠面积大,人口少,交通不便。为了加速沙漠的改造,利用飞机播种造林治沙,是一项意义重大的工作。沙区飞播的关键在于通过各种措施提高保存率。以往沙区的飞播虽取得了一定成绩,但对飞播地的选择有所忽略。从库布齐、乌兰布和、毛乌素沙区飞播成效分析可 In the northwestern region of our country, the desert area is large, with a small population and inconvenient transportation. In order to speed up the transformation of deserts, it is a significant task to sow and plant silviculture by aircrafts. The key to aerial broadcasting in sandy areas is to improve the preservation rate through various measures. In the past, although the aerial broadcasting of the sand area had made some achievements, it had neglected the choice of aerial broadcasting sites. Analysis of the effectiveness of aerial seeding from Kubuqi, Ulan Buh and Mu Us sandy areas