火炬松(Pinus taeda L(和湿地松(Pinus elIiottii Engelm),原产北美州的东南部,常绿乔木,树高可达30—36米,胸高直径可达60—90厘米,树干通直圆满,木材物理性能优良,是建筑、车厢、家具、渔部桅杆的优质用材;而且树脂分泌多、质量好,是生产松节油和松香的优质原料。这两个树种在我国已有四十余年的引种栽培历史。 Pinus taeda L (and Pinus elIiottii Engelm), native to the southeastern part of North America, has evergreen trees with tree heights up to 30-36 m and chest diameters up to 60-90 cm in diameter. , Wood excellent physical properties, construction, cars, furniture, fishing mast of high-quality timber; and resin secretion, good quality, is the production of turpentine and rosin of high quality raw materials.These two species in our country for more than 40 years Introduction of cultivation history.