飞播造林成效播期的影响因素分析

摘要

Through long-term practice and research on the aerial seeding in Shangluo city ,it concluded the rela-tionship between the aerial seeding and natural conditions ,the rainfall factor was the key to the success of the aerial seeding .In four seasons ,the plant growth duration was from March to November each year .Based on the variation of weather ,the best opportunity to conduct the aerial seeding could chosen in spring and autumn ac-cording to the graph of temperature and rainfall within a year .In Shangluo city ,the emergence rate ,storage rate ,the quality and the effect of aerial seeding afforestation were improved a great deal in recent years under the guidance of the analysis on natural climate conditions ,geographic conditions and the graph of temperature and rainfall .%　　通过长期的生产实践和研究，总结出飞播造林与自然条件的相关关系，自然界的降水因子是决定飞播造林成效的关键。在一年的四季气候变化中：植物生长季节在3~11月，根据其气候变化规律，绘出雨热曲线图，从中找出飞播造林的最佳播种时间是春秋两个季节。近几年商洛市的飞播造林根据播区的自然气候环境条件、立地条件、雨热曲线图综合分析，来确定飞播播种造林是适应在春播还是秋播，采用这种方法飞播造林，大大提高了飞机播种出苗率、保存率、飞播造林的质量和成效。