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近年来,川东、鄂西大巴山、巫山、齐跃山海拔1900—2200米飞播的华山松,落针病危害严重,生长衰退,有的成片死亡,目前尚无有效防治措施。为扩大飞播树种引进油松,营造混交林,以解决华山松遭受病虫害问题。 1979年从河北引进油松进行飞播造林试验,到1981年底止,已飞播6个播区,有效面积一十万九千亩。本文根据3年来对青山头播区飞播油松后的效果调查,讨论油松在巫山,大巴山飞播造林成功的可能性,为提高油松飞播成效及播区选择、播种期提出初步看法。
In recent years, East Sichuan, western Hubei Daba Mountain, Wushan, Qiyueshan altitude 1900-2200 meters aerial seeding Huashan pine, needle disease serious harm, growth decline, and some died, there is no effective prevention and treatment measures. In order to expand the introduction of seeding pine tree species, to create a mixed forest in order to solve Huashan pine pest problems. In 1979, the introduction of Pinus tabulaeformis from Hebei for aerial seeding afforestation test, by the end of 1981, has been sown six sowing area, the effective area of 109,000 acres. Based on the investigation of the effect of Pinus tabulaeformis after sowing Pinus tabulaeformis in Qoshan sowing area in the past three years, the paper discussed the possibility of Pinus tabulaeformis sowing in succession by means of aerial sowing in Wushan and Daba Mountains.