西安市郊葡萄种植土壤重金属污染风险分析

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中图分类号：S663.1 文献标识码：A 文章编号：0488-5368（2025）12-0056-04

Abstract：Soil samples were collected from six grape cultivation sites in the southern suburbs of Xi’an.After mixed-acid digestion，the concentrations of Pb ，Cd，Cr，and Cu were measured using atomic absorption spectrophotometry.The results indicated that the concentrations of allfour heavy metals in the samples exceded the background values for soils in Shaanxi Province.The pollution levels were assessed using the Nemerov comprehensive polution index.Theanalysis showed that allsixsites were clasifiedas severely pollutedbyallfour heavy metals. An assessment using the geo-accumulation index （ IΓ-geo ）revealed that Cd and Cu contamination was particularly prominent.Cd，in particular，posed a severe pollution risk.

Key words：Xi'an suburbs；Grape cultivation soil； Heavy metals；Pollution risk

葡萄在关中地区被广泛种植，是西安市，尤其是户县、长安区主要种植水果之一，深受消费者喜爱。（剩余5396字）