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根据我国北方地区历年油松飞播调查资料和对典型播区的调查 ,阐明了油松飞播的地理分布和效果 ;同时运用统计分析和模糊数学分析等方法 ,对影响油松飞播成效的主要因子作了系统的宏观分析 ,得出年均降水量和年均气温是影响飞播效果的主要因子。在此基础上 ,对北方地区油松飞播造林进行了适宜性分区 ,分区结果将油松飞播划分为 3个区 ,即造林适宜区 ,造林次适宜区和造林非适宜区 ,对指导今后油松飞播生产具有重要意义
According to the survey data of the seasons of Pinus tabulaeformis and the typical seeding area in northern China, the author explained the geographical distribution and effect of the seeding of Pinus tabulaeformis, and analyzed the main factors influencing the seeding effect of Pinus tabulaeformis by means of statistical analysis and fuzzy mathematics analysis The macro analysis of the system, draw the annual average precipitation and the average annual temperature is the main factor affecting the effect of aerial seeding. On this basis, the afforestation of the Pinus tabulaeformis forest in northern China was carried out with suitable zonation. The zonation results divided the aerial seeding of Pinus tabulaeformis into three areas, namely afforestation suitable area, afforestation sub-suitable area and afforestation non-suitable area, Flying production is of great significance