生物炭与土壤微生物相互作用研究进展

Review on interaction between biochar and soil microorganism

生物炭是生物质限氧热解得到的含碳丰富的固体物质。目前关于生物炭农用效果的研究侧重于微生物生态方面,施加生物炭对土壤微生物的影响与生物炭性质及土壤环境条件有关。综述了生物炭与土壤微生物之间存在的直接和间接相互作用:一方面,微生物可直接矿化生物炭;另一方面,施加生物炭后土壤环境变化又间接影响微生物。

Biochar is a solid carbonaceous residue made by burning biomass under oxygen deficient conditions. The studies about the effects of bioehar on improving soil properties have already focused on the field of soil microbial ecology. The effects of biochar amendment on microorganism in soil are highly influenced by properties of biochar and environmental conditions of soil. Interactions between biochar and soil microorganism are theoretically expounded. Mineralization of biochar by soil microorganism can occur directly. Besides, soil environmental variations after biochar addition have indirect impact on soil microorganism.