乌兰呼都格地区戈壁化草原地球化学特征及异常评价

乌兰呼都格地区戈壁化草原地球化学特征及异常评价摘要：本文通过采集乌兰呼都格地区戈壁化草原不同深度土壤，对其地球化学特征进行研究，并对地球化学异常进行评价。结果表明，土壤中主量元素含量依次为Si、Al、Fe、Ca、Mg、K、Na，微量元素含量依次为Ti、Mn、V、Ni、Cr、Co、Cu、Zn、As。其中Si和Al富集在粘土矿物中，Fe和Mn主要富集在氧化物中。土壤Ba、As、Pb、Zn等微量元素含量较高，其中As、Pb超过生态标准。评价结果表明，本区土壤Zn异常较为显著，As、Pb、Cu等微量元素可能存在环境风险。

关键词：乌兰呼都格地区；戈壁化草原；地球化学特征；异常评价；环境风险

Abstract:Inthispaper,thegeochemicalcharacteristicsofsoilinthedesertifiedgrasslandofWulanHUDUGeareawerestudiedbycollectingsoilsamplesfromdifferentdepths,andthegeochemicalanomalieswereevaluated.TheresultsshowedthatthecontentofmajorelementsinthesoilwasSi>Al>Fe>Ca>Mg>K>Na,andthecontentoftraceelementswasTi>Mn>V>Ni>Cr>Co>Cu>Zn>As.SiandAlwereenrichedintheclayminerals,whileFeandMnweremainlyenrichedintheoxides.ThecontentsofBa,As,Pb,Znandothertraceelementswererelativelyhigh,amongwhichAsandPbexceededtheecologicalstandards.TheevaluationresultsshowedthatsoilZnanomalywasmoresignificantinthisarea,andtraceelementssuchasAs,PbandCumighthaveenvironmentalrisks.

Keywords:WulanHUDUGearea;desertifiedgrassland;geochemicalcharacteristics;anomalyevaluation;environmentalrisThedesertifiedgrasslandintheWulanHUDUGeareaexhibitedspecificgeochemicalcharacteristics,whichweremainlyattributedtothecomplexgeologicalandclimaticconditionsinthisregion.Theconcentrationsofmajorelementsinthesoilweregenerallylow,whilethecontentsoftraceelementswererelativelyhigh,indicatingthatthesoilhadbeeninfluencedbyweatheringandmineralizationprocesses,aswellasanthropogenicactivities.Amongthetraceelements,Znwasfoundtobeanomalouslyenriched,indicatingapotentialsourceofpollution.

Theenrichmentfactors(EFs)oftraceelementsvaried,withAs,Pb,andCuexceedingthegeochemicalbackgroundvaluesinsomesamples.TheEFsofAsandPbwereparticularlyhigh,indicatingthattheseelementswerelikelyderivedfromanthropogenicsources,suchasmining,smelting,oragriculturalactivities.Theseelementscouldposeapotentialrisktotheenvironmentandhumanhealth.

TheresultsoftheanomalyevaluationindicatedthatthesoilinthestudyareaexhibitedasignificantZnanomaly,whichcouldbeassociatedwiththepresenceofmineraldeposits.However,thehighconcentrationsofAs,Pb,andCuinsomesamplessuggestedapotentialenvironmentalrisk,whichrequiredfurtherinvestigationandremediationefforts.

Insummary,thedesertifiedgrasslandintheWulanHUDUGeareaexhibiteduniquegeochemicalcharacteristics,withhighconcentrationsoftraceelements,particularlyZn,As,Pb,andCu.Theanomalyevaluationresultsindicatedapotentialenvironmentalriskassociatedwiththeseelements,whichrequiredfurtherattentionandmanagementBasedonthegeochemicalcharacteristicsoftheWulanHUDUGearea,thepotentialenvironmentalriskcouldbeduetoseveralfactors.Onepossiblecauseisthenaturalrockformationsinthearea,ascertainmineralscancontainhighconcentrationsoftraceelements.Anotherfactorcouldbehumanactivities,suchasminingoragriculturalpractices.Theareahasahistoryofminingforcopperandotherminerals,whichcouldhaveresultedintheaccumulationoftraceelementsinthesoilandwater.

ToaddressthepotentialenvironmentalriskintheWulanHUDUGearea,furtherinvestigationandremediationeffortsarenecessary.Thiscouldinvolvetheimplementationofbestmanagementpracticesinagriculturalactivitiestominimizethepotentialforcontaminationofsoilandwatersources.Itmayalsorequirethecleanupandremediationofsitesthathavebeenaffectedbyminingactivitiesinthepast.

Overall,theuniquegeochemicalcharacteristicsoftheWulanHUDUGeareahighlighttheimportanceofcarefulmanagementandmonitoringofnaturalresources.Bytakingproactivemeasurestoaddresspotentialenvironmentalrisks,wecanhelptoprotectthehealthandwell-beingoflocalcommunitiesandensurethepreservationofournaturalecosystemsInadditiontotheenvironmentalconcerns,theWulanHUDUGeareaalsofacessocialandeconomicchallenges.Theminingindustryhasbroughtbothopportunitiesandchallengestothelocalcommunities.Ononehand,miningactivitieshavecreatedjobopportunities,increasedincome,andimprovedinfrastructure.Ontheotherhand,ithasalsoledtothedisplacementofcommunitiesanddisruptedtraditionallivelihoods.

Toaddressthesechallenges,itisessentialtoensurethatthebenefitsofminingaresharedequallyamongallstakeholders.Thelocalcommunitiesmusthaveasayinthedecision-makingprocessandbeinvolvedintheplanningandimplementationofminingprojects.Thegovernmentmustalsoensurethatminingcompaniesadheretostrictenvironmentalandsocialstandards.

Anotherimportantaspectofsustainableminingisthepromotionofresponsiblemineralsupplychains.Thisinvolvesensuringthatmineralsaresourcedethicallyandarenotassociatedwithhumanrightsabusesorenvironmentaldestruction.Bypromotingresponsiblemineralsupplychains,wecanhelptoreducethenegativeimpactsofminingonpeopleandtheenvironment.

Finally,itisimportanttoacknowledgethatminingisjustoneaspectofthebroadernaturalresourcemanagement.Inadditiontomineralresources,theWulanHUDUGeareaisalsorichinothernaturalresources,suchaswater,forests,andwildlife.Therefore,aholisticapproachtonaturalresourcemanagementisessential.Thisinvolvesconsideringthewiderenvironmental,social,andeconomicimpactsofresourceexploitation,andimplementingstrategiestomitigatenegativeimpacts.

Inconclusion,theWulanHUDUGeareaisauniquegeologicalregionwithsignificantmineralresources.However,itsrichnaturalresourcesalsopresentsignificantenvironmental,social,andeconomicchallenges.Toensuresustainabledevelopment,itisessentialtoadoptamultidisciplinaryapproachthatconsidersthewiderimpactsofresourceexploitat