华东地区不同种类畜禽粪便对农田土壤重金属输入的影响

Effects of Different Kinds of Livestock Manure on Heavy Metal Input in Agricultural Soil of Eastern China

在统计有关我国华东地区畜禽养殖规模、粪便重金属含量等相关文献数据的基础上,探讨了华东地区畜禽粪便对农田土壤重金属输入的贡献,以及不同畜禽种类的影响。结果表明,畜禽粪便中重金属对农田土壤的输入量从大到小依次为Zn>Cu>Cr>Pb>As>Cd>Hg,其中,Zn和Cu为主要输入的元素。生猪粪便是农田土壤中Zn、Cu、As输入量的主要贡献者,家禽粪便是Cr、Pb、Hg输入量的主要贡献者。牛粪便对农田土壤中Pb、Hg、Cr输入量的贡献也不低。

Based on the published papers about livestock scale and heavy metal contents of eastern China,the present study explored the contribution of livestock manure to heavy metal input of agricultural soil and the effect of different kinds. Results showed that the input of heavy metals in livestock manure to agricultural soil was ZnCuCrPbAsCdHg,Zn and Cu were the main input elements. The input of Zn,Cu and As in agricultural soil mainly came from pig manure and the input of Cr、Pb、Hg mainly came from poultry manure. The input of Pb、Hg and Cr from cow manure was not low.