| 土壤中反硝化酶活性变化与N2O排放的关系 |
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| 引用本文： | 史奕,黄国宏.土壤中反硝化酶活性变化与N2O排放的关系[J].生态学杂志,1999,10(3):329-331. |
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| 作者姓名： | 史奕 黄国宏 |
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| 作者单位： | 中国科学院沈阳应用生态研究所, 沈阳 110015 |
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| 基金项目： | 中国科学院生物科学与技术特别支持项目 |
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| 摘 要： | 研究施肥条件下,土壤反硝化酶活性硝酸还原酶(NR)活性、亚硝酸还原酶(NiR)活性及羟胺还原酶(HyR)活性在玉米生长季节中的变化及其与土壤含水量、硝态氮含量、N2O排放之间的关系。结果表明,3种还原酶都有明显的季节变化规律并受土壤水分含量及施肥的影响。通过研究3种反硝化酶活性与土壤含水量及N2O排放量之间的关系后指出,反硝化酶活性变化可作为一个区分旱田N2O产生途径的指标.
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| 关 键 词： | 反硝化酶 NO3--N 含水量 N2O |
| 收稿时间： | 1998-07-14 |
Relationship between soil denitrifying enzyme activities and N2O emission |
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| Shi Yi,Huang Guohong.Relationship between soil denitrifying enzyme activities and N2O emission[J].Chinese Journal of Ecology,1999,10(3):329-331. |
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| Authors: | Shi Yi Huang Guohong |
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| Institution: | Institute of Applied Ecology, Academia Sinica, Shenyang 110015 |
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| Abstract: | Studies of the activities of soil nitrate reductase, nitrite reductase and hydroxylamine reductase in maize growing season and their relationship with soil water content, NO3--N content and N2O emission under fertilization showed that these three denitrifying enzymes had a significant seasonal variation and were influenced by soil water content and fertilization. The relationship between soil denitrifying enzymes, soil water content and N2O emission were further investigated, which indicated that the activities of soil denitrifying emzymes could be an index to distinguish the ways of N2O Oproductions in upland field. |
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| Keywords: | Denitrifying enzymes NO3--N Soil water content N2O |
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