黑荆树(Acacia mearnsii Willd)是世界著名的速生、高产、优质鞣料树种,原产澳洲。树皮含单宁46.01%,纯度82.21%,为优良栲胶原料。木材坚硬,纹理细致,不易变形,可做枕术、车船、家具、建筑、造纸和人造丝用材。生长迅速,根系发达,枝叶茂密,具根瘤菌,用于造林,既能改良土壤,保持水土,又可培育薪炭材。黑荆树花期较长,是蜜源植物;四季常青,树形美观,也是庭院“四旁”绿化的优良树种。我国引种黑荆树始于五十年代,现在广东、广西、云南、贵州、四川、江西、浙江、台湾等省(区)均有栽堵。我省从1976年首次在西乡县引种,该县葛石乡五丰村王德培由坦桑尼亚木比亚省带回种子,进行种植。现在保留3株,平均高9.86米,平均胸 Acacia mearnsii Willd is a world-renowned fast-growing, high-yielding and high-quality tanning tree species native to Australia. The bark contains 46.01% tannin and the purity is 82.21%, which is an excellent gum material. Timber hard, delicate texture, not easy to deform, do pillow, car, furniture, construction, paper and rayon timber. Rapid growth, well-developed roots, dense foliage, Rhizobium, for afforestation, both to improve the soil, maintain soil and water, but also cultivate firewood. Wattle flowering period is longer, is a nectar plant; evergreen, beautiful tree, but also the courtyard “around” green fine tree species. Introduction of Chinese black wattle began in the fifties, and now Guangdong, Guangxi, Yunnan, Guizhou, Sichuan, Jiangxi, Zhejiang, Taiwan and other provinces (districts) have planted. The province was first introduced in Xixiang County in 1976, and Wang Depei, a village of Wufeng, Ge Shixiang, brought back seeds from the province of Mumbia, Tanzania, for planting. Now retained 3 strains, an average of 9.86 meters high, the average chest