臭椿是华北地区分布最广的树种,生长迅速,八年十年即可成材,材质优良,能生长于干旱土壤与瘠薄地。但是臭椿幼树易遭水涝、日灼、冻害,在山地进行播种造林往往效果不佳。河北省建屏县在1957年秋季进行山地臭椿播种造林300馀亩,成活率达90%。造林地选择在底山半阴坡,砂壤土,长有 Ailanthus altissima is the most widely distributed species in North China. It grows rapidly and can grow in ten years and is of good quality. It grows in arid and infertile soil. However, Ailanthus altissima is susceptible to waterlogging, sunburn and frost damage, and sowing and afforestation in the mountains often has poor results. Jianping County, Hebei Province, in the autumn of 1957, sowing and sowing ailanthus altissima more than 300 acres, the survival rate of 90%. Afforestation in the mountain half-shady slope, sandy loam, long