农业环境科学学报2016，Vol.35Issue(5)：913-918,6.DOI:10.11654/jaes.2016.05.014
生物炭和猪粪肥对铜污染土壤中蕹菜生长及铜形态的影响
Effects of biochar and pig manure on ipomoea aquatica forsk growth and copper forms in copper-polluted soil
摘要
Abstract
A pot-culture experiment was carried out to compare the effects of biochar, copper(Cu)-containing pig manure, and their mix-ture on Ipomoea aquatica growth as well as the changes of total copper and various chemical forms in soil. Five chemical fractions of copper in soil were analyzed with Tessier sequential extraction procedure. Results showed that applications of pig manure promoted plant growth, and Cu absorption and accumulation of I. aquatica. Compared with the control, biochar amendments remarkably reduced I. aquatica biomass and soil exchangeable Cu concentrations, but increased soil residual Cu content. In control soil(0 mg Cu·kg-1 addition), the per-centages of various chemical forms of copper was organic>Fe-Mn oxides-bound>carbonate-bound>exchangeable forms. Adding pig manure significantly increased exchangeable Cu and organic Cu, while biochar applications increased organic Cu form gradually. Applying mixture of biochar and pig manure increased carbonate-bound Cu and organic Cu. Although applications of biochar reduced the biomass of I. aquat-ica, but promoted Cu immobilization in soil.关键词
铜污染土壤/蕹菜/生物炭/铜污染猪粪肥/化学形态Key words
Cu-polluted soil/Ipomoea aquatica Forsk/biochar/Cu-containing pig manure/chemical form分类
资源环境引用本文复制引用
陈璇,郭雄飞,陈桂葵,黎华寿,贺鸿志..生物炭和猪粪肥对铜污染土壤中蕹菜生长及铜形态的影响[J].农业环境科学学报,2016,35(5):913-918,6.基金项目
国家高技术研究发展计划项目（2013AA102402）；国家自然科学基金项目（41271469）；广东省科技计划项目 （）
