土壤含水量与N2O产生途径研究

应用生态学报 ›› 1999, Vol. 10 ›› Issue (1): 53-56.

土壤含水量与N₂O产生途径研究

黄国宏¹, 陈冠雄¹, 韩冰², Oswald Van Cleemput³

1. 中国科学院沈阳应用生态研究所, 沈阳 110015;
2. 沈阳师范学院生物系, 沈阳 110032;
3. 比利时根特大学农业与应用生物科学系, B29000 Gent

收稿日期:1998-02-23 修回日期:1998-04-24 出版日期:1999-01-25 发布日期:1999-01-25
通讯作者: 黄国宏,男,39岁,博士,研究员,主要从事微生物生态研究,已发表论文40余篇.
基金资助:
中国科学院生物科学与技术研究特别支持课题;比利时外交贸易发展合作部资助

Relationships between soil water content and N₂O production

Huang Guohong¹, Chen Guanxiong¹, Han Bin², Oswald Van Cleemput³

Institute of Applied Ecology, Academia Sinica, Shenyang 110015

Received:1998-02-23 Revised:1998-04-24 Online:1999-01-25 Published:1999-01-25

摘要/Abstract

摘要： 土壤含水量变化对N₂O产生和排放影响的研究表明,不同含水量情况下,N₂O排放也不相同。特别是用乙炔抑制技术证明了在播种前后,气候干燥而土壤含水量较低的情况下,N₂O产生主要来自于硝化过程;降雨后,土壤含水量较高时,N₂O主要是通过反硝化过程产生;而在农田中等含水量情况下,土壤微生物的硝化和反硝化作用产生的N₂O大约各占一半。指出旱作农田N₂O产生途径主要取决于土壤水分的控制和调节。

关键词: 土壤, 含水量, N₂O产生, 旱田, 高温, 光合酶, 黄瓜, 光合作用, 亚高温

Abstract: Studies on the effect of soil water content on N₂O production and emission indicated that different soil water contents induced different N₂O fluxes. It was demonstrated by the technique of acetylene inhibition, that around the period of sowing when the climate was dry and soil water content was low,N₂O production came from nitrification; after raining when soil water content was high, N₂O production mainly came from denitrification; and at medium water content, a half of N₂O emission came from nitrification, and another half from denitrification. It was suggested that the ways of N₂O production from upland fields mainly depended on the control and regulation of soil water.

Key words: Soil, Water content, N₂O production, Upland field, sub-high temperature, cucumber, photosynthetic enzyme, high temperature, photosynthesis

黄国宏, 陈冠雄, 韩冰, Oswald Van Cleemput. 土壤含水量与N₂O产生途径研究[J]. 应用生态学报, 1999, 10(1): 53-56.

Huang Guohong, Chen Guanxiong, Han Bin, Oswald Van Cleemput. Relationships between soil water content and N₂O production[J]. Chinese Journal of Applied Ecology, 1999, 10(1): 53-56.

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土壤含水量与N₂O产生途径研究

Relationships between soil water content and N₂O production

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