Biochar and lime has attracted tremendous research interests due to its ability of increasing some toxic heavy metal irons immobilization in soil. However, few studies focus on the effects of biochar and lime application on soluble heavy metal release from historically heavy metal contaminated soil to waterlogged paddy water and non-point loads with in situ field experiment. Two years study was conducted to evaluate Cd, Pb, As metal irons immobilization and non-point loads reduction effectiveness after rice, bean derived biochars and lime application into a historically multi-metal contaminate...
