桦树液为春天采集的桦树体液,呈白色,具清热解毒、止咳、利尿等功能,临床上用于治疗痰喘咳嗽、肾病、痛风等。桦树为桦木科桦木属植物,在长白山区分布有近10种。本文对长白山产的白桦(Betula platyphylla Suk.)和枫桦(Betula Costata Trautv.)两种不同树种的树液的还原糖、氨基酸含量进行比较分析。供实验样品采于长白山临江林业局金 Birch liquid is birch bodily fluid collected in spring and it is white. It has the functions of detoxification, cough relieving, and diuresis. It is used clinically to treat asthma, cough, kidney disease, and gout. Birch trees are birch plants of the birch family and there are nearly 10 species distributed in the Changbai Mountain area. In this paper, the reducing sugar and amino acid contents of the sap of Betula platyphylla Suk. and Betula Costata Trautv. produced in Changbai Mountain were compared and analyzed. The experimental samples were collected at Linjiang Forestry Bureau of Changbai Mountain