新疆艾比湖流域农田土壤重金属环境容量评价

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中图分类号：X53；X26 文献标志码：A 文章编号：1672-2043（2025）10-2590-08 doi：10.11654/jaes.2024-1066

Abstract：ToclarifytheenvironmentalcapacityofheavymetalsinfarmlandsoilsintheEbinurLakebasinofXinjiang，atotalof115 surface soilsampleswerecollctedfrothesudyarea，ndthecotentsofeavymetalsicudingCd，Hg，As，Pb，Cu，N，ndZnee analyzed.The Environmental Capacity Comprehensive Index（PI） was used to analyze the characteristics and spatial distribution patterns ofenvironmentalcapacityofeavymetalsinfmlandsoils.Teresultssowedtattheaveragecontentofsevenaymetalsincluding Cd，Hg，As，，Cu，ndZnineladsilinirkebsinsloweratelowbleliitseSEl Quality-RiskControlStndardsfoSoilContaminationofAgrculturalLnd（GB618O18），ndtheoverallontentofavytals waswithinasafeange.Theaveragestaticanddynamicannualenvironmentalcapacitiesofvarioushavymetalsinfarlandsoilinthe studyareacanberankedas：Zn>Ni>Pb>Cu>As>Hg>Cd.Theaveragedynamicanualenvironmentalcapacityofvariousheavymetalswas greater than the static annual environmental capacity. The single environmental capacity index（Pi） of seven heavy metals in farmland soils can be ranked as： Cu>Hg>Ni=Pb>Cd>Zn>As. The average PI value of heavy metals in farmland soil was O.82，at a medium capacity zone. The spatial distribution patterns of Pi of various heavy metals are different. The low PI areas distributed in the northern part of Wenquan

CountyandthesouthwesternandnorthernpartsofJingheCountyOverallthesoilAscontentisthemainfactoraectingthe environmental capacity of heavy metals in farmland soilsin the Ebinur Lake basin.

Keywords：farmland; soil; heavy metal; environmental capacity; Ebinur Lake basin

近年来，随着区域城市化、工业化以及农业集约化的快速发展，农田土壤重金属污染日益严重。（剩余14331字）