农村生活垃圾堆周边土壤重金属污染和分布特征

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关键词农村；生活垃圾堆；土壤重金属；污染；分布特征

中图分类号X53文献标识码A

文章编号 0517-6611（2025）21-0055-06

doi：10.3969/j.issn.0517-6611.2025.21.011

AbstractObjective]Toexploretheimpactofdisorderlystackingofruraldomesticgarbageonheavymetalsinthesuroundingsoil. [Method]AdomesticgarbagedumpsiteoutsideavillgeinTaiguDistrict，ShanxiProvincewastakenasanexample.Threesectionswitha depthof70cmwerecollctedabout3，6，and9mawayfromthegabagedump，every5cmisonelayer，measuredthecontentofavymet alsandmainpysicohemicalpropetisofchlarof tsctostosudytepoltionddtributioncracteristsofaetals. [Result]Theresultsshowedthat：longtemtackingofdomesticgarbageouldcauseheavymetalsintesuroundingsoiltocedthe standard，especiallyZnandPb，posingariskofpolution.Teheavymetalsinthesoil within3metersofteruraldomesticgarbagedump had relatively high contents，wherein Cu， Zn and Ni mainly accumulated in 0-30 cm，Cr and Pb could also migrate to the soil layer below 30 cm;within 6m，Cu，Zn，Ni，and Pb mainly accumulated in the surface layer 0-30 cm，and Cr would migrate down quickly and accumulated in the subsoil;within 9 m，soil heavy metals were less affcted by garbage dumps，only Zn and Pb had lighter accumulation. The domestic garbagepilewouldincreasethemoisturecontent，TOCandECoftesurroundingsufacesoil;within3mfromthegarbgedup，temigration of Cu， Zn ，andPbwas mainlyrelated to soil moisture andorganic mater，whileNi was onlyrelated tomoisture，the migrationof Zn and Pb within 6m was mainlyafectedbyorganic mater.[Conclusion]Thedisorderlystackingofrural domestic garbage is likely tocause heavy metalpolltiontsuoudingsoldsaedectomigatert.Lg-estackigasaighriskofpltioandsoe controlled.

Key wordsRural area;Domestic garbage dump;Soil heavy metal;Pollution;Distribution characteristics

随着我国城镇化进程逐渐加快，人们对生活环境的要求也越来越高，但伴随着农村居民生活水平日益提高，生活垃圾产量也与日俱增。（剩余11206字）