Simulation of lateral migration of heavy metal in Huanjiang watershed, Guangxi province of China
Soil heavy metal migration will enlarge the polluted areas and increase the difficulty of soil management and remediation.An efficient simulation method is urgently needed to predict the heavy metal transportation and to provide useful information for taking measurements to prevent the pollution.Based on the SWAT (Soil and Water Assessment Tools) model,this research established a heavy metal transportation model.An experimental case study was conducted in a seriously polluted area in Huanjiang watershed,Guangxi province in the south of China.Nash coefficient and correlation coefficient during the modeling period were fairly high,at 0.87 and 0.82,respectively,and the overall bias was only 13.23%.The migrated quantity in the study area in 2013 was also estimated,As,Zn,Pb,Cd were90,230,120 and 0.7 kg/yr,respectively.The model proposed by this study would be promising for other similar areas worldwide.
P.W.Qiao X.Y.Zhou J.Yang T.B.Chen M.Lei
Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing, China University of C Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing, China
国际会议
北京
英文
443-446
2014-10-16（万方平台首次上网日期，不代表论文的发表时间）