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飞机播种是治理大面积荒山荒坡的一种现代化技术手段,具有速度快、投资小、投工少、效益高等优点。我区从1980年开始引进这项技术,先后在岢岚、神池、五寨、偏关等四县进行推广,飞播总面积达20.8万亩,平均每亩造价3.1元。飞播后辅之以适当的封、育、造、管等措施,四年后林草覆盖率普遍提高40％。如何充分利用飞播成果,提高开发治理效益,为了探索这方面的经验,我区于1983年在岢岚县长柳播区试办了水保林牧
Aircraft sowing is a modern technical means of treating large area of barren hills and slopes, with the advantages of fast speed, small investment, less investment in work, and higher efficiency. Since 1980, our district has introduced this technology. It has been popularized in four counties of Langlan, Shenchi, Wuzhai and Piao’guan. The total area of airborne broadcasting reached 208,000 mu with an average cost of 3.1 yuan per mu. After the airborne broadcast was supplemented by measures such as proper sealing, education, construction and management, the coverage rate of forest and grass generally increased 40% after four years. How to make full use of the results of aerial broadcasting to improve the efficiency of development and management, in order to explore this experience, I District in 1983 in Langrui County Liu bo area trial soil and water conservation