| 长期施肥对黑土酶活性和微生物呼吸的影响 |
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| 引用本文： | 刘妍,周连仁,苗淑杰.长期施肥对黑土酶活性和微生物呼吸的影响[J].中国土壤与肥料,2010(1). |
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| 作者姓名： | 刘妍 周连仁 苗淑杰 |
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| 作者单位： | 东北农业大学资源与环境学院,黑龙江,哈尔滨,150030 |
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| 基金项目： | 黑土保护性耕作和定向培育技术研究，黑龙江省博士后基金，东北农业大学科学研究基金资助和黑龙江省高校寒地黑土利用与保护重点实验室开放基金资助项目 |
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| 摘 要： | 以农业部哈尔滨黑土生态环境重点野外科学观测试验站28年长期定位试验为平台,研究了长期施用不同肥料对黑土酶活性及微生物呼吸强度的影响。结果表明,长期不同施肥处理后黑土过氧化氢酶、转化酶和脲酶的活性均产生较大的差异,有机无机肥料配合施用处理的土壤中脲酶和转化酶活性显著地高于单施化肥、有机肥和不施肥处理,施肥对土壤过氧化氢酶具有一定的抑制作用。相同施肥条件下0~20 cm土层土壤过氧化氢酶、转化酶和脲酶的活性均高于20~40 cm土层酶活性。此外,施肥对土壤真菌、细菌的呼吸都有一定的抑制作用。
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| 关 键 词： | 长期施肥 黑土 酶活性 土壤呼吸 |
Effects of long-term fertilization on mollisoil enzyme activities and microbial respiration |
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| LIU Yan,ZHOU Lian-ren,MIAO Shu-jie.Effects of long-term fertilization on mollisoil enzyme activities and microbial respiration[J].Soil and Fertilizer Sciences in China,2010(1). |
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| Authors: | LIU Yan ZHOU Lian-ren MIAO Shu-jie |
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| Institution: | LIU Yan,ZHOU Lian-ren,MIAO Shu-jie(College of Resources , Environment,Northeast Agricultural University,Harbin 150030) |
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| Abstract: | The long-term field experiment was carried out to evaluate soil enzyme activities and soil respiration with the different fertilizer treatments in farmland soil at the Key Observation Station of the Harbin Black Soil Ecology,Ministry of Agriculture,Heilongjiang Province,China.The results showed that the soil enzyme activities(catalase,invertase and urease) had significant difference among fertilization treatments regardless of sampling time.The urease and invertase activities of organic and inorganic fertil... |
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| Keywords: | long-term fertilization mollisoils soil enzyme activity soil respiration |
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