Evaluation of soil pollution situation in urban industrial wasteland:A case study

(整期优先)网络出版时间:2015-02-12
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Urbanindustrialwastelandmighthavebeenaffectedbytoxicandhazardoussubstancesemittedbytheoriginalproductionactivities.Consequently,pollutionsurveyanalysisandenvironmentalriskassessmentshouldhavebeenconductedbeforeredevelopment.Inthepaper,bysurveyingsoilsamplefromwastedump,tailingpondandsurroundingareainLead-ZincMine,fuzzymathematicsmethodwasadoptedtoestablishFuzzyComprehensiveEvaluationmodelastoanalyzeconditionsofsoilpollutionbyheavymetalandsoilnutrient.ItwouldprovideimportantscientificbasisforpollutioncontrolandecologicalrestorationintheminingareaandthuscarryoutcomprehensiveecologicalrestorationinLead-ZincMine.FuzzyComprehensiveEvaluationresultsindicatedthatsoilpollutionbyheavymetalweresevere.Itcouldgiveprioritytodevelopforestry.MostdeficientsoilnutrientelementswereavailablePandN.Duetothelackofnitrogenandphosphorus,itwasnecessarytoimprovethesoilbeforephytoremediation.