皖江經(jīng)濟(jì)帶濕地沉積物重金屬污染評(píng)價(jià)及來(lái)源解析

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中圖分類號(hào)：X508 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-204X（2025）04-0010-07doi：10.3969/j.issn.1002-204x.2025.04.002

Evaluation and Source Analysis of Heavy Metal Pollution in Sediments of Wetlands in Wanjiang Economic Belt

Shen Hua'， Guo Lingli2 （1.Geological Survey InstituteofAnhui Province，Hefei，Anhui230OO1；2.Evaluation Centerof Mineral Resource Reserves of Anhui Province，Hefei， Anhui 230001）

Abstract Based onthe monitoring data of wetland sediment samples inthe Wanjiang Economic Belt，the polutiondegree of heavy metals inthe sedimentsof the studyarea was evaluated and comprehensively analyzed byusing thegeological accumulation index Igeo method and the potential ecological risk index RI method to obtain more reliable results.At the sametime，Pearson analysis method wasused to analyze the corelation ofheavy metals insediments.The resultsshowed that thesix elements ofAs，Cd，Cu，Pb，Znand Hghadsignificant correlation，indicating that thesesixelementshadcertain homology，andtheaverage content of these six elements exceeded the background value.The average value of Cd element even reached1O times of thebackground value，and theenrichmentphenomenon wassignificant，which indicated that thepolution of thesesix elementswas mainlycaused by human factors.At thesame time，Crand Niare highlycorrelated， indicating thatCrandNi have certain homology，butthe measuredconcentration values of CrandNi are close totheirbackgroundvalues，indicating that Crand Niaremainlynatural deposition.Thecorrelationanalysis datashowed that the main heavy metal elements in the study area were derived from human activities， including pollution emissions frommining，industrial productionand living activities.Therefore，some prevention andcontrol measures should be taken for therelevant polution'sources to reduce their impact on the wetland environment.

KeyWords Wanjiang Economic Belt;Wetland sediments；Geological accumulation index;Potential ecologica risk index;Correlation analysis

皖江經(jīng)濟(jì)帶（以下簡(jiǎn)稱皖江）位于安徽省中部（圖1），東鄰長(zhǎng)三角，西接武漢城市群，是長(zhǎng)江經(jīng)濟(jì)帶上的重要節(jié)點(diǎn)；是安徽省主要產(chǎn)業(yè)基地、城鎮(zhèn)集中分布區(qū)、主要礦產(chǎn)勘查開(kāi)發(fā)區(qū)和國(guó)家級(jí)商品糧基地；是國(guó)家級(jí)重要的鋼鐵、有色金屬、建材、化工等原材料基地；也是安徽經(jīng)濟(jì)發(fā)展的主體和龍頭。（剩余6926字）