%0 Journal Article
%T Effect of Flue Gas Desulfurization Gypsum Application on Remediation of Acidified Forest Soil<br>脱硫石膏对酸化森林土壤短期修复效果的研究
%A LUO Yao
%A KANG Rong-hu
%A YU De-xiang
%A TAN Bing-quan
%A DUAN Lei
%A <br>罗遥
%A 康荣华
%A 余德祥
%A 谭炳全
%A 段雷
%J 环境科学
%D 2012
%I 
%X Effect of flue gas desulfurization gypsum (FGDG) application on remediation of a typical acidified forest soil was studied through field experiments at Tieshanping, Chongqing in southwest China for one year. To evaluate the effect and risk of FGDG application, pH value, major ions and heavy metal of soil water in different soil layers were observed dynamically, and heavy metal contained in soil and FGDG were measured. Results showed that Ca2+ and SO42- concentration of soil water in FGDG plots increased with time, pH value was elevated slightly, and n(Ca)/n(Al) value of annual average increased from 2.16, 1.35 and 0.88 to 2.58, 1.52 and 1.12 compared with control plots. The concentration of As, Cu, Cr, Ni and Zn in soil water was not elevated significantly. However, slight enrichment of Cr, Ni and Zn in some upper soil layers was observed. Consequently, FGDG application can improve acidified forest soil, without obviously heavy metal increasing in soil water. However, risk for heavy metal enrichment still exists, which is need for further study.
%K acidification
%K soil remediation
%K flue gas desulfurization gypsum
%K n(Ca)/n(Al) molar ratio
%K heavy metal<br>酸化
%K 土壤修复
%K 脱硫石膏
%K n(Ca)/n(Al)摩尔比
%K 重金属
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=1D8FDF1D949EE4BA2C9D736296669DC4&yid=99E9153A83D4CB11&vid=27746BCEEE58E9DC&iid=B31275AF3241DB2D&sid=37904DC365DD7266&eid=99E9153A83D4CB11&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=24