土壤中广泛存在含铁、锰氧化物等天然半导体矿物(鲁安怀,2003)。经前人研究,天然半导体金红石的光催化作用能有效促进化能自养微生物氧化亚铁硫杆菌(Acidthiobacillus ferrooxi-dans)的生长(吕明等,2008)。对于含有天然半导体矿物和有机质的土壤体系中,以有机质为能 There are a wide range of natural semiconductor minerals such as iron and manganese oxides in the soil (Ruian Huai, 2003). According to previous studies, photocatalysis of natural semiconductor rutile can effectively promote the growth of autotrophic bacterium Acidthiobacillus ferrooxi-dans (Lu et al., 2008). For soil systems containing natural semiconductor minerals and organic matter, organic matter can be used