Objective

2

To study on the quality regionalization of

Angelica sinensis

，in order to guide the rational cultivation of

A. sinensis

.

Method

2

Through visits and field surveys，a total of 857 batches of

A. sinensis

were collected from different counties of Dingxi，relevant geographic information such as longitude，latitude，altitude of each sampling point were obtained by using the global positioning system（GPS），the content of 8 indexes in

A. sinensis

was detected by UPLC， and based on national ecological environment factor data，the suitability analysis of the quality of

A. sinensis

was performed by using MaxEnt，ArcGIS，SPSS.

Result

2

The suitable areas of

A. sinens

were concentrated in central and southern Dingxi. In the suitable areas，the content of ferulic acid，coniferyl ferulate，senkyunolide H decreased from south to north，the content of chlorogenic acid decreased from north to south，the content of senkyunolide A，senkyunolide I decreased from east to west，the distribution regularity of butenyl phthalide was not strong，the highest-content areas were in western Min county，Qingyuan town of Qingyuan county，Shangwan Township and Huichuan town. The content of ligustilide was consistent in the suitable area，and the highest content were in the middle of Weiyuan county and the northern Tongwei county. The results showed that it had a higher index components and comprehensive quality in Min county，Zhang county，southern Weiyuan county and northern Tongwei county.

Conclusion

2

In this study，the quality suitability areas of

A. sinensis

in Dingxi were graded. The chemical components and the quality suitability zoning maps were generated. The findings could provide references for the comprehensive utilization of

A. sinensis

，the selection and construction of high-quality

A. sinensis

raw material base，and the scientific guidance for the production and regional development of

A. sinensis

in Dingxi.