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过去有人认为油桐在秦岭以北不能种植。解放后,党对经济林生产非常重视,油桐不仅在陕南得到迅速恢复和发展,而且在秦岭以北的关中地区也进行了引种。据我们1965年和1973年在周至等11个县(市)的调查,不少地方引种成功,现已开花结实,传种接代(见图)。当地群众在引种过程中,积累了宝贵的经验。一、关中地区的自然条件关中地处北纬34-
Some people used to think that tung oil trees can not be planted to the north of the Qinling Mountains. After the liberation, the party attached great importance to economic forest production. Tung oil tree not only got rapid recovery and development in southern Shaanxi, but also introduced in the Guanzhong area north of the Qinling Mountains. According to our surveys conducted in 11 counties (cities) such as Zhouzhi in 1965 and 1973, many places have been introduced successfully. Now they have blossomed and have succeeded in breeding (see photo). The local people in the introduction process, has accumulated valuable experience. First, the Guanzhong region’s natural conditions Guanzhong is located in the north latitude 34-