Introduction
In recent years, soil pollution was becoming more and more severe due to the increased using in
mining, manufacturing and of synthetic products, such as pesticides, paints, batteries, industrial waste and
land application of industrial or domestic sludge [1]. Polluted soil area has reached 20 million hm2
in
China, accounted for about 1/5 of the total cultivated area [2, 3], threatening the soil ecological
environmental quality, food security and social sustainable social and economic development [4]. Much
concern has been addressednover the problem of soil contamination with heavy metals due to rapid