RESUMO
This study was aimed to investigate the relationship between the quality ofRheum palmatum L. and ecological factors, in order to provide the basis for nurture and cultivation ofR. palmatumL. The ultra performance liquid chromatography (UPLC) was used in the determination of 8 effective components in samples from 3 majorR. palmatumL. producing provinces, which wereGansu,SichuanandQinghai province. The SPSS software was applied to analyze the effective components by the one-way analysis of variance. And the correlation analysis between the content and ecological factors was also conducted. The results showed that the pressure, relative humidity and temperature had close relationship with the content of bioactive compounds inR. palmatumL. The content of effective components inR. palmatumL. was positively related to pressure, relative humidity, and temperature. It was concluded that the quality ofR. palmatumL. in Gansu province was better. And the ecological factors affected the accumulation of effective components. This research provided experimental basis for the quality ofR. palmatumL. in different regions and ecological adaptation. The results demonstrated critical meaning forR. palmatumL. quality improvement, appropriate ecological division, and industrialized development promotion ofR. palmatumL.