地质通报2011,Vol.30Issue(9):1434-1441,8.
浙东沿海某地区大气干湿沉降对土壤重金属元素含量的影响
Impact of dry and wet atmospheric deposition on content of heavy metals in soils along coastal areas of eastern Zhejiang Province
摘要
Abstract
In this paper, the characteristics of atmospheric heavy metal deposition (dry and wet deposition) in a typical solid waste area of eastern Zhejiang were studied and, on such a basis, the impact degree of dry and wet atmospheric deposition on content of heavy metals in soils was discussed in detail, and the variation rate of heavy metals in soils of the study area was predicted through mathematical model construction. The results show that the values of cadmium, copper, lead, zinc, nickel and other heavy metals in both dry and wet atmospheric depositions are much higher than average values of Zhejiang Province and other standard values. Moreover, the deposition fluxes of heavy metals are all at high levels in the whole province, especially for copper and zinc. The annual deposition fluxes are respectively 7108g/hm2 and 11420g/hm2. It is predicted that the content of heavy metals in soils could increase rapidly due to the impact of the dry and wet atmospheric deposition, and the increasing amounts of copper, zinc, cadmium and lead reach respectively 3426ng/g, 5819 ng/g, 6.50ng/g, and 582ng/g. In addition, the increasing rates of heavy metals are great in soils of the study area. The annual increasing rates of copper, lead and zinc have all reached 0.5% or more.关键词
土壤/大气干湿沉降/重金属元素/浙东沿海/固废拆解区Key words
soil/dry and wet atmospheric deposition/heavy metals/eastern Zhejiang/solid waste area分类
资源环境引用本文复制引用
黄春雷,宋金秋,潘卫丰..浙东沿海某地区大气干湿沉降对土壤重金属元素含量的影响[J].地质通报,2011,30(9):1434-1441,8.基金项目
浙江省国土资源厅项目《浙江省基本农田质量调查试点》(编号:浙土资厅函[2007]592号) (编号:浙土资厅函[2007]592号)