[Objective]To explore the response and adaptation of leaf functional traits of Atractylodes chinensis to Horqin sandy land.[Methods]Semi-wild A.chinensis.seeds from four seed sources were transplanted to the Chinese(Mongolian)medicinal herb research base in Naiman Banner through a homo-geneous gardening experiment.The leaves of three-year-old A.chinensis were used as materials,to exam-ine how A.chinensis's leaf structure and functional properties responded to and adapted to the sandy land of Horqin.[Results]The degree of leaf cleavage in the lower portion of the A.chinensis introduced from Zhalute Banner was evident.Additionally,the thickness of the upper and lower epidermal cells of the leav-es of the A.chinensis introduced from Weichang County and Zhalute Banner were found to have signifi-cantly higher coefficients of variation and plasticity indices than those of the other seed source sites;addi-tionally,their palisade/spongy ratios and the tightness of their tissues and structures were greater.The top layer of A.chinensis leaves from Arong Banner and Zhalute Banner sources had a greater number of stomata,whereas the upper layer of A.chinensis leaves from Harqin Banner had less stomata and a low stomatal density.A.chinensis leaves from the Zhalute Banner and Weichang County sources had a robust photosynthetic capacity,and the leaves from the Harqin Banner sources had a notably greater number of stomata in the lower epidermis than the leaves from the other three sources.[Conclusion]The results show that A.chinensis from Weichang County and Zhalute Banner are highly adaptable to the Horqin Sandy land.
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