Objective: To conduct correlation analysis between roots

stems and leaves of Sophora flavescens from different habitats of Guizhou and latitude and longitude

altitude

mean humidity and mean temperature

and investigate the alkaloid contents accumulation in different parts of S. flavescens from different environments. Method: UV spectrophotometry method was applied to detected the contents of alkaloids in roots

stems and leaves of S. flavescens

and the correlation analysis was conducted to study the correlation between cumulative alkaloids difference and ecological factors. Result: The contents of alkaloids in different parts of S. flavescens were in the order of roots > leaves > stems

and the contents were highest in those from Bijie City Dafang County

whose total contents in roots

stems and leaves were 20.45 μg·g-1. The different parts of S. flavescens were differently affected by ecological factors. Conclusion: There were significant differences in alkaloid content of S. flavescens roots

stems

and leaves from different areas. Relative humidity and mean annual temperature among the ecological factors showed greatest impact on alkaloid content. The results can provide a theoretical basis to S. flavescens standardized cultivation and management as well as targeted cultivation

and provide a theoretical basis for S. flavescens high quality production and comprehensive utilization of its non-medicinal parts.