Effects of Biochar on Soil Enzyme Activity and Mechanism of Action

施炭对土壤酶活性的影响及其作用机制（英文）

[Objective] The aim was to detect effects of biochar on soil enzyme activity and mechanism. [Method] Soils were sampled from experimental fields of Shanxi Academy of Agricultural Sciences and added with charcoals in different types in order to analyze dynamic changes of alkaline phosphatase and cellulase activities and effects of charcoals on soil enzyme activities. [Result] By applying charcoal, enzyme activity of soil samples all improved and the increase degree was higher of alkaline phosphatase than cellulase activity. Mid-temperature charcoal at 8% is the best. [Conclusion] The research provides references for effects of biochar on physi- cal and chemical properties.

[目的]检测添加生物炭对土壤酶活性的影响及其作用机制。[方法]以山西省农业科学院小麦研究所实验田中的土壤为材料,在土壤中添加不同种类、不同含量的木炭,通过分析土壤中碱性磷酸酶和纤维素酶活性的动态变化,研究木炭对土壤酶活性的影响。[结果]在施加木炭的条件下,土壤样品中的酶活性皆有一定程度的提高,且碱性磷酸酶的活性提高程度高于纤维素酶。施加木炭有效提高碱性磷酸酶、纤维素酶的活性且延长其酶活性周期,实际大田应用中以含量为8%的中温炭为最佳施加量。[结论]该研究为了解生物炭对土壤理化性质的影响提供了数据基础和理论依据。