| 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]. 应用生态学报, 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 N 2O emission. |
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| Shi Yi,Huang Guohong. Relationship between soil denitrifying enzyme activities and N 2O emission.[J]. The journal of applied ecology, 1999, 10(3): 329-331 |
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| Authors: | Shi Yi Huang Guohong |
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| Affiliation: | 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, NO - 3 content and N 2O 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 N 2O emission were further investigated, which indicated that the activities of soil denitrifying emzymes could be an index to distinguish the ways of N 2O productions in upland field. |
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| Keywords: | Denitrifying enzymes NO - 3 N Soil water content N 2O. |
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