以长白山山脉火山喷出物发育土壤为研究对象,设计了7种测试方案,用偏光显微镜观察溶解剩余物中火山玻璃残留验证溶解效果,对氢氟酸溶解法测定火山玻璃的测试条件进行了比较研究,探讨了成土母质类型、土壤发育程度、土壤样品颗粒大小对火山玻璃测定结果的影响,最后提出火山灰土壤中火山玻璃含量测定的改进方法。 Seven kinds of test programs were designed to study the development of volcanic emanation soil in Changbai Mountain Range. Seven kinds of test schemes were designed. The effect of residual dissolution and dissolution of volcanic glass in dissolved residue was observed by polarized light microscope. The testing conditions of volcanic glass by hydrofluoric acid dissolution method were compared The effects of soil parent material types, soil development degree and soil sample particle size on volcanic glass determination were discussed. Finally, an improved method for determination of volcanic glass content in volcanic ash soil was proposed.