构树又名沙纸树、沙皮树，是桑科落叶乔木。构材用途很广，树皮富含纤维，是造纸（沙纸、复写纸、宣纸）和人造棉的上等原料。树叶营养丰富，是优质的家畜饲料，也可制农药，作绿肥。果及根发均可入药。剥皮后的树杆燃烧值高，是极好的薪炭柴。构树全身是宝，是石山地区大力推 Tree also known as sand paper tree, sand tree, is a branch of Soko deciduous trees. The use of a wide range of materials, bark fiber-rich, is the finest raw materials for paper making (sandpaper, carbon paper, rice paper) and artificial cotton. Leaf nutrient-rich, is a high-quality livestock feed, but also the system of pesticides, green manure. Fruit and root hair can be used as medicine. Tree peeled after burning high value, is an excellent firewood. The whole tree is a treasure tree, Shishan push vigorously