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一、经济价值黑荆树是鞣料植物中含单宁量很高的树种。由于它生长迅速,树皮含单宁量高,生产栲胶原料周期短,生产栲胶成本低(生产1吨固体栲胶需要黑荆树皮2.5吨,如果用落叶松树皮要13吨)。鞣革渗透性快、沉淀少(制革工业用1吨的黑荆树栲胶就可抵1.4吨的落叶松栲胶)。我场1956年引种的7—9年生黑荆树皮经前泉州栲胶厂和原省森林工业研究所化
First, the economic value of black wattle is tanning plants containing high amount of tannin trees. Due to its rapid growth, the amount of tannin contained in the bark is high, the cycle of production of gums is short, and the cost of producing gums is low (2.5 tons of black wattle bark is required for producing 1 ton of solid gum and 13 tons for bark of larch). Tannage permeability and sedimentation less (leather industry with 1 ton of black wattle gum can reach 1.4 tons of larch gum). My field introduced in 1956, 7-9 years black Jing Jing bark former Quanzhou plant and the original provincial Institute of Forest Industry