黑木耳含有多种维生素和人体必需的氨基酸。是筵席上的佳肴,又是很有药用价值的保健食品。销售量大,为我国传统出口产品。黑木耳段木栽培,在我国有悠久的历史,产量为世界之首。但木材资源逐年减 Black fungus contains a variety of vitamins and essential amino acids. Is the feast of food, but also very medicinal value of health food. Large sales, as China’s traditional exports. Black fungus wood cultivation, in our country has a long history, the output of the world’s first. However, the annual reduction of timber resources