| 不同生长年限紫花苜蓿人工草地土壤酶活性及分布 |
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| 引用本文： | 邰继承,杨恒山,张庆国,李军琴.不同生长年限紫花苜蓿人工草地土壤酶活性及分布[J].草业科学,2008,25(4):76-78. |
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| 作者姓名： | 邰继承 杨恒山 张庆国 李军琴 |
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| 作者单位： | 内蒙古民族大学农学院,内蒙古,通辽,028042;内蒙古民族大学农学院,内蒙古,通辽,028042;内蒙古民族大学农学院,内蒙古,通辽,028042;内蒙古民族大学农学院,内蒙古,通辽,028042 |
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| 摘 要： | 分层取土样,对不同生长年限紫花苜蓿Medicago sativa人工草地中脲酶、过氧化氢酶、蔗糖酶、淀粉酶和纤维素酶的分布特征进行研究,结果表明:在0～40 cm土层内,脲酶、过氧化氢酶、蔗糖酶和淀粉酶的活性2年生紫花苜蓿地均相应高于5年生紫花苜蓿地,纤维素酶活性5年生紫花苜蓿地高于2年生紫花苜蓿地;脲酶、过氧化氢酶、蔗糖酶活性均随土层深度的增加而递减,淀粉酶活性则随土层深度的增加而增高,纤维素酶活性2年生紫花苜蓿地随土层深度的增加而降低,5年生紫花苜蓿地随土层深度的增加而增高.
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| 关 键 词： | 紫花苜蓿 生长年限 酶活性 分布特征 |
| 文章编号： | 1001-0629(2008)04-0076-03 |
| 修稿时间： | 2007年4月9日 |
Soil enzyme activity and distribution in alfalfa field with different growing years |
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| TAI Ji-cheng,YANG Heng-shan,ZHANG Qing-guo,LI Jun-qin.Soil enzyme activity and distribution in alfalfa field with different growing years[J].Pratacultural Science,2008,25(4):76-78. |
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| Authors: | TAI Ji-cheng YANG Heng-shan ZHANG Qing-guo LI Jun-qin |
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| Abstract: | The distribution characteristics of urease,catalase,invertase,amylase and cellulase in alfalfa fields with different growing years were studied by layered soil sampling.The results showed that in 0-40 cm soil layer,the enzyme activities of urease,catalase,invertase,amylase in 2 year alfalfa field were higher than that in 5 year alfalfa field;while cellulose activity in 5 year alfalfa field was 2 times higher than that in 2 year field.The enzyme activity of urease,catalase,invertase decreased with the increasing soil depth,while amylase enzyme activity increased.cellulase activity in 2 year alfalfa field decreased with the increasing soil depth,and increased with the increasing soil depth for 5 year alfalfa field. |
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| Keywords: | Alfalfa growth year enzyme activity distribution characteristics |
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