CAJ | 학술논문

选择桂柳高速公路上的4个调查剖面和1个对照剖面测试了公路两侧农田土壤中Pb、Cd、Cr、Hg和As的含量分布.结果表明,公路交通对路两侧土壤重金属含量有一定的影响,运行期较长的对照路段桂黄公路两侧土壤中的Pb、Cd和As的含量明显高于运营期较短的桂柳高速公路段,而Cr、Hg与公路运行期长短的关系不是非常密切;重金属含量在横向上都有随距路肩距离的减小而增大的趋势,Pb、Cd在路肩两侧200 m范围内含量的变化较小.以广西水稻土土壤背景值为评级标准,采用单因子指数法评价了路侧土壤的环境质量:所测路段和剖面的Cd、Hg污染均较严重;Cr基本上还处在非污染水平;桂黄公路段Pb的污染指数高于高速公路段.
선택계류고속공로상적4개조사부면화1개대조부면측시료공로량측농전토양중Pb、Cd、Cr、Hg화As적함량분포.결과표명,공로교통대로량측토양중금속함량유일정적영향,운행기교장적대조로단계황공로량측토양중적Pb、Cd화As적함량명현고우운영기교단적계류고속공로단,이Cr、Hg여공로운행기장단적관계불시비상밀절;중금속함량재횡향상도유수거로견거리적감소이증대적추세,Pb、Cd재로견량측200 m범위내함량적변화교소.이엄서수도토토양배경치위평급표준,채용단인자지수법평개료로측토양적배경질량:소측로단화부면적Cd、Hg오염균교엄중;Cr기본상환처재비오염수평;계황공로단Pb적오염지수고우고속공로단.
The distribution of Pb,Cd,Cr,Hg and As in roadside soil of Guilin-Liuzhou express is studied.The results show that the traffic affects the soil quality.The content of Pb,Cd and As are obviously higher in Guilin Huangshahe section, the comparative profile with a longer traffic time than that in the Guilin-Liuzhou express section.But the content of Cr and Hg does not have much to do with the traffic-time. The content of heavy metals increases according to the distance decreasing apart from the roadbed, but in express section the content of Pb and Cd changes a little within 200 m.The roadside soil quality is evaluated with the soil background values of Guangxi paddy. The pollution of Cd and Hg is found serious in all sections and profiles exept Cr.The Pb pollution index of Guilin-Huangshahe section is higher than that in express section.