经 4a定点定位对贵州主产茶区 3种土壤物理性状对茶叶品质的影响研究。结果表明 :氨基酸、咖啡碱与总孔隙度、液相、气相成正相关 ,与固相、容重成负相关 ;茶多酚与总孔隙度、气相成负相关 ,与液相、固相、容重成正相关 ;水浸出物与总孔隙度、液相成负相关 ,与气相、固相、容重成正相关 Effect of Fixed Position of 4a on Tea Quality of Three Kinds of Soil Physical Properties in Main Tea Production Area in Guizhou Province. The results showed that amino acids and caffeine were positively correlated with total porosity, liquid phase and gas phase, and negatively correlated with solid phase and bulk density. Tea polyphenols were negatively correlated with total porosity and gas phase, and positively correlated with liquid phase, solid phase and bulk density ; Water extract was negatively correlated with total porosity and liquid phase, and positively correlated with gas phase, solid phase and bulk density