Influence of Rare Earth Elements in Soil on Mineral Elements Content of Walnuts in Yunxi
In order to study the geochemical characteristics of rare earth elements in the soil of typical walnut pro-duction area in Yunxi,20 soil and walnut samples in the contiguous planting area are collected.The soil REE composition features,distribution patterns,parameters and the effects on the main mineral nutrients in walnuts are analyzed.The results show that the average value of rare earth elements in the soil were 141.86 mg.kg,which was lower than the background value A-layer soil in Hubei Province.The distribution pattern curve of all sam-pling points in the area showed a right-leaning geometric shape and light rare earths in the soil were relatively en-riched.The soil showed obvious negative Eu anomalies and weak negative Ce anomalies.There was a significant positive correlation between soil rare earth elements and N,K,Ca,Zn,Cu,Mn,Sr,Ni,Mo,Cd,Co in wal-nuts and there was a significant negative correlation with As and Pb.
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