摘要
为了探明黑土旱田改为水田后土壤酶活性的变化,通过5点采样法取样,对旱田和水田土壤的酸碱度、电导率及土壤过氧化氢酶、脱氢酶、脲酶、转化酶和纤维素酶活性进行了测定。结果表明,旱田改为水田后,土壤pH和电导率显著上升,脲酶和转化酶的活性明显提高,脱氢酶活性显著降低,但对过氧化氢酶和纤维素酶影响不大。相关性分析结果表明,土壤理化性质的改变能影响土壤酶的活性,同时土壤酶之间可以相互作用,共同影响着土壤的生物化学过程。
To explore the change of soil enzymes in black soil after turning dryland into paddy field, the samples were adopted by five points sampling method. Soil pH, electrical conductivity and soil enzymes such as catalase, dehydrogenase, urease, intertase and cellulose were measured in dryland and paddy field. The results showed that the soil pH and electrical conductivity increased significantly after changing dryland into paddy field. The activities of urease and intertase were in-creased obviously, the activity of dehydrogenase decreased significantly, but the activity of catalase and cellulase had no changes. The results of correlation analysis illustrated that the changes of soil physical and chemical properties could influence the activity of the soil enzyme. Meanwhile the soil enzymes could interact each other and influence soil biochemical process.
出处
《湖北农业科学》
2017年第11期2045-2048,共4页
Hubei Agricultural Sciences
基金
黑龙江省大学生创新创业训练计划项目(201610222076)
佳木斯大学博士启动资助项目(22Zb201511)
关键词
旱田
水田
PH
电导率
酶活性
pH
dry land
paddy field
pH
electrical conductivity
enzyme activities
