农业环境科学学报2016，Vol.35Issue(4)：764-773,10.DOI:10.11654/jaes.2016.04.022
我国部分城市畜禽粪便中重金属含量及形态分布
Content and fractionation of heavy metals in livestock manures in some urban areas of China
摘要
Abstract
Samples of livestock manures were taken from intensive farms in some urban areas of China to study content and fractionation of heavy metals. Results indicated that Cu, Zn, Cd, As, Ni, Cr, Pb and Hg content in these livestock manure samples varied greatly, with aver-ages of 377.5, 1 610.4, 0.72, 7.79, 9.77, 22.51, 6.31 mg·kg-1 and 0.06 mg·kg-1, respectively. The content of Cu, Zn, Cd and As was signifi-cantly higher in pig manure than in poultry manure and in cow and sheep dung, while Cr content in poultry manure was the highest among all samples. There were 59.84%and 95.08%of pig manure samples in which Cu and Zn content exceeded the National Control Standards of Contaminants in Agricultural Sludge, respectively. Based on the Standards of Guidelines for the Safe Use of Animal Manure in Vegetable Field, Cd, Ni, Cr, Pb and Hg in the pig manure samples were all safe, while for As there was only 3.28% of samples exceeding the limit. However, for Zn, Cu and As, 78.69%, 74.59%and 9.84%of pig manure samples exceeded the limits, respectively. Copper or Zn content de-creased in order of nursery pig manure>growing-finishing pig manure>sow manure. The content of As in growing-finishing pig manure was higher than that in nursery pig manure and sow manure, while Cd content was higher in sow manure than in growing-finishing pig manure and nursery manure. In addition, water soluble Cu and As content accounted for 30.47%and 12.19%of the total, respectively, while EDTA-extractable Zn and Cu were 35.96%and 48.93%of the total, respectively. The high mobility of Cu, Zn and As in pig manure might increase their risk of releasing into the environment.关键词
畜禽粪便/重金属/含量/形态Key words
livestock manure/heavy metal/content/fractionation分类
资源环境引用本文复制引用
贾武霞,文炯,许望龙,段然,曾希柏,白玲玉..我国部分城市畜禽粪便中重金属含量及形态分布[J].农业环境科学学报,2016,35(4):764-773,10.基金项目
“十二五”国家科技支撑计划课题 （）
