| 温度和水分对草甸草原土壤氧化亚氮产生速率的调控 |
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| 引用本文： | 杜睿. 温度和水分对草甸草原土壤氧化亚氮产生速率的调控[J]. 应用生态学报, 2006, 17(11): 2170-2174 |
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| 作者姓名： | 杜睿 |
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| 作者单位： | 中国科学院大气物理研究所,北京,100029 |
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| 基金项目： | 国家自然科学基金;中国科学院科研基金 |
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| 摘 要： | 通过试验室模拟试验，研究了调控草甸草原黑钙土N2O产生速率的因素.结果表明,土壤水分对草甸草原土壤N2O产生速率有重要影响(F=6.149,P＜0.01).但相关性分析表明，草甸草原土壤含水量与N2O的产生速率间线性相关不显著.就土壤N2O的产生速率而言，温度的影响远低于土壤水分的影响(F=2.275,P=0.106).土壤水分和温度对不同生长阶段的草甸草原土壤N2O产生速率的调控作用主要表现为阶段性的多阶多项式关系：y=ax3+bx2+cx+d，其中a、b、c、d是常数.
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| 关 键 词： | N2O产生速率 土壤水分 温度 多阶多项式 |
| 文章编号： | 1001-9332(2006)11-2170-05 |
| 收稿时间： | 2005-09-06 |
| 修稿时间： | 2006-03-28 |
Effects of soil moisture and temperature on N2O production rate of meadow grassland soil |
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| DU Rui. Effects of soil moisture and temperature on N2O production rate of meadow grassland soil[J]. The journal of applied ecology, 2006, 17(11): 2170-2174 |
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| Authors: | DU Rui |
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| Affiliation: | Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China |
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| Abstract: | With incubation test, this paper studied the effects of soil moisture and temperature on the N_2O production rate of meadow grassland chernozem in Inner Mongolia. The results showed that soil moisture had a significant effect on the N_2O production rate, with a non-linear relationship between them. Soil temperature had less effect than soil moisture. Their effects on the test soil N_2O production rate at different growth stages could be described as a multi-order polynomial relationship y=ax~3+bx~2+cx+d, where a, b, c and d were the constants. |
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| Keywords: | N2O production rate Soil moisture Temperature Multi-order polynomial relationship. |
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