| 土壤三种酶活性对温度升高和氮肥添加的响应 |
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| 引用本文： | 白春华,红梅,韩国栋,赵萌莉,卢秉韬. 土壤三种酶活性对温度升高和氮肥添加的响应[J]. 内蒙古大学学报(自然科学版), 2012, 43(5): 509-513 |
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| 作者姓名： | 白春华 红梅 韩国栋 赵萌莉 卢秉韬 |
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| 作者单位： | 1. 内蒙古农业大学生态环境学院,呼和浩特,010019
2. 呼伦贝尔市种子管理站,内蒙古海拉尔,021008 |
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| 基金项目： | 自然科学基金重大项目(30590382);教育部重点项目(210040) |
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| 摘 要： | 以内蒙古荒漠草原为对象,通过研究增温、施氮、增温+施氮、对照(CK)四个处理对土壤三种酶活性的影响表明:三种酶活性均随着土壤深度的增加而逐渐降低,0-10 cm＞0-20 cm＞20-30 cm(p＜0.05).增温处理与对照相比能明显提高土壤脲酶活性(p＜0.05),对过氧化氢酶和蔗糖酶活性的影响不明显；施氮处理与对照相比能提高脲酶和蔗糖酶活性,对过氧化氢活性的影响不明显(p＜0.05)；增温+施氮处理与对照相比提高了脲酶酶活性,对蔗糖酶和过氧化氢的影响不明显(p＜0.05).
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| 关 键 词： | 增温 施氮 土壤酶活性 |
Response of Three Kinds of Enzyme Activity to Simulate Warming and Nitrogen Addition |
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| BAI Chun-hua , HONG Mei , HAN Guo-dong , ZHAO Meng-li , LU Bing-tao. Response of Three Kinds of Enzyme Activity to Simulate Warming and Nitrogen Addition[J]. Acta Scientiarum Naturalium Universitatis Neimongol, 2012, 43(5): 509-513 |
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| Authors: | BAI Chun-hua HONG Mei HAN Guo-dong ZHAO Meng-li LU Bing-tao |
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| Affiliation: | 1.College of Ecology and Environmental Sciences,Inner Mongolia Agricultural University, Hohhot 010019,China;2.Seed Management Department of Hulunbeier,Hailar 021008,China) |
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| Abstract: | An experiment was designed to examine the impact of warming and N addition on soil enzymes in desert steppe.There were four treatments,CK,simulated warming,N addition,and both warming and N addition.Effects of four treatments on three kinds of enzymes were studied,the enzymes were urease,catalase and sucrase.Activities of the three kinds of enzymes all reduced with the depth of soil(0-10,10-20,20-30cm depth)(p < 0.05).Simulated warming improved urease activity(p < 0.05),and had uncertainly effect on catalase and sucrase.N addition improved urease and sucrase activity(p< 0.05),but uncertainly effected catalase.Both warming and N addition could increase the activity of urease(p < 0.05),but had unobviously effects on sucrase and catalase. |
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| Keywords: | warming nitrogen addition soil enzyme activity |
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