栓皮栎为落叶乔木,高达25米,胸径1米,树皮栓皮层可厚达2—10厘米。其木材致密、坚硬,是重要的用材树种;栓皮可制软木纸、软木砖,具有浮力大、弹性好、不透水、不透气、耐酸、耐碱、隔音、传热慢、不导电等特性,是工业的重要原料,种子的仁和壳内含有单宁,可提炼栲胶和黑色染料;种仁含有很多淀粉,可酿酒、制葡萄糖 Quercus variabilis is deciduous tree, up to 25 meters in diameter at 1 meter, and the bark cork can be as thick as 2-10 cm. The wood is dense and hard, which is an important timber species; cork can be made of cork paper, cork brick, with buoyant, flexible, impermeable, airtight, acid, alkali, noise, heat transfer, Is an important industrial raw materials, seed kernel and tannin contains tannin extract can extract black and black dye; seeds contain a lot of starch, can brew wine, making glucose