Distribution Characteristics of Trace Element Contents in Farmlands of Bachu County,Xinjiang
A total of 300 farmland soil samples were collected from Bachu County,and their contents of available iron,manganese,copper,and zinc were determined to clarify the trace element contents in the soil.This study aimed to explore the structural characteristics and origins of soil microelements,providing theoretical references for microelement management in the farmland soils of Bachu County.The results showed that the available iron content ranged from 4.51 to 20.00 mg/kg,with an average of 12.37 mg/kg,67.4%of the soils being rich in iron and 32.6%having moderate levels.The available manganese content ranged from 1.01 to 9.97 mg/kg,with an average of 5.26 mg/kg,56.0%of the soils having moderate levels and 44.0%being deficient.The available copper content ranged from 1.00 to 6.00 mg/kg,with an average of 3.39 mg/kg,77.3%of the soils being extremely rich,19.0%rich,and 3.7%having moderate levels.The available zinc content ranged from 0.50 to 2.00 mg/kg,with an average of 1.19 mg/kg,57.6%of the soils being rich,35.6%moderate,and 6.8%deficient.The trace element contents in Bachu County's farmland soils were in the order of available iron＞available manganese＞available copper＞available zinc.Among the various farmland regions,Qiaerbage Township had the highest comprehensive evaluation score and performed the best.It is recommended that crop cultivation processes should consider the soil trace element contents of different townships and appropriately supplement trace elements to achieve quality and efficiency improvements.
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