煤气化渣配施平菇菌糠显著提高煤矿区土壤酶活性  

The application of coal gasification slag combined with oyster mushroom bran significantly increased soil enzyme activity in coal mine area

作　　者：陈花[1] 米双 相微微[1] 田丽[1] 艾国 CHEN Hua;MI Shuang;XIANG Wei-wei;TIAN Li;AI Guo(College of Life Sciences,Yulin University,Yulin 719000,Shaanxi,China;Shenmu Vocational&Technical College,Shenmu 719300,Shaanxi,China)

机构地区：[1]榆林学院生命科学学院,陕西榆林719000 [2]神木职业技术学院,陕西神木719300

出　　处：《湖北农业科学》2024年第11期13-17,共5页Hubei Agricultural Sciences

基　　金：陕西省教育厅重点科研计划项目(重点实验室项目22JS046);榆林市科技局产学研合作项目(CXY-2020-018)。

摘　　要：为探究煤气化渣适配平菇菌糠能否作为沙土改良剂改善煤矿区土壤,分别将按矿区土壤质量分数为10%、20%、30%和40%的煤气化渣与15%平菇菌糠混合后施入煤矿区土壤,同时设置空白对照(CK1,煤矿区土壤)和单施平菇菌糠的煤矿区土壤对照(CK2),在土壤休耕状态下,每隔6 d测定各处理的土壤酶活性。结果表明,0、7、14 d时CK2的土壤酶活性均高于CK1;各煤气化渣处理的土壤酶活性均高于CK2,且30%煤气化渣配施15%平菇菌糠处理下的土壤酶活性均处于最高水平,该处理与CK2相比,除过氧化氢酶在处理7 d时未达到显著水平外,其他酶活性在任何时段均显著提升(P<0.05)。由此可知,30%煤气化渣配施15%平菇菌糠能最大程度地促进土壤酶活性。In order to explore whether the coal gasification slag combined with oyster mushroom bran can be used as a sand modifier to improve the soil in the coal mine area,the coal gasification slag with a mass fraction of 10%,20%,30% and 40% of the soil in the coal mine area was mixed with 15 % mushroom bran and applied to the soil in the coal mine area.At the same time,the blank control(CK1,the coal mine soil)and the coal mine soil with mushroom bran(CK2)were set up.Under the condition of soil fallow state,the soil enzyme activity of each treatment was measured every 7 days.The results showed that the soil enzyme activity of CK2 was higher than that of CK1 at 0,7 and 14 d.The soil enzyme activity of each coal gasification slag treatment was higher than that of CK2,and the soil enzyme activity under the treatment of 30% coal gasification slag combined with 15% oyster mushroom bran(T3)was at the highest level.Compared with CK2,except that catalase did not reach a significant level at 7 d,other enzyme activities of T3 were significantly increased at any time(P < 0.05).In summary,the application of 30% coal gasification slag with 15% oyster mushroom bran could promote soil enzyme activity to the greatest extent.

关 键 词：煤气化渣 平菇菌糠 土壤酶活性 土壤改良 煤矿区 

分 类 号：S156.2[农业科学—土壤学] X752[农业科学—农业基础科学] X71[环境科学与工程—环境工程]