1生境分布五角枫在塞罕坝林区多生于河塘的谷地、阴坡和天然次生林中,常与花楸、白桦、山杨等混生,属珍贵阔叶树种。2播种育苗技术2.1圃地选择圃地要求地势平坦、背风向阳,有良好的灌溉条件,土层深厚、肥沃的中性或微酸性的沙质壤土、轻粘壤土、壤土。2.2种子处理采种母树一般选10年生以上、健壮、无病虫害、性状优良的植株。华北五角枫种子在塞罕坝林区10月中旬成熟,果实由 1 habitat distribution Pentagon maple in the Saihanba forest more than the river pond valley, shady and natural secondary forest, often with Sorbus, birch, aspen mixed, is a precious broad-leaved tree species. 2 sowing seedling technology 2.1 garden land choice for flat topography, leeward sunny, good irrigation conditions, deep soil, fertile neutral or slightly acidic sandy loam, light clay loam, loam. 2.2 seed treatment Mother seed trees generally selected 10 years of age, robust, pest-free, good traits of plants. Maple seeds in North China Maple Leaf in the Saihanba mature in mid-October, the fruit from