Effect of NH(4)Cl addition on methane oxidation by paddy soils
文献类型：期刊论文
| 作者 | Cai, ZCC; Mosier, AR |
| 刊名 | SOIL BIOLOGY & BIOCHEMISTRY
 |
| 出版日期 | 2000-10-01 |
| 卷号 | 32期号:11-12页码:1537-1545 |
| ISSN号 | 0038-0717 |
| 通讯作者 | Cai, ZCC(zccai@ns.issas.ac.cn) |
| 英文摘要 | Methane emission from flooded rice fields is a net product of CH(4) production and oxidation. The ability of paddy soils to oxidize CH(4) produced endogenously is an important natural feature for mitigating CH(4) emission to the atmosphere. We conducted a series of studies on CH(4) oxidation by two fresh paddy soils (Wuxi soil and Yingtan soil). The soils were amended with NH(4)Cl at rates equivalent to 0, 10 and 50 mu g N g(-1) soil, respectively, and incubated over five consecutive periods at elevated CH(4) concentrations of similar to 500, similar to 1000, similar to 1500 or similar to 2000 mu l l(-1) in the headspace, respectively, at 25 degrees C. NH(4)Cl addition inhibited the rates of CH(4) oxidation by the paddy soils at all initial CH(4) concentrations during the first incubation. The inhibitory effect was strengthened with increasing NH(4)Cl addition and alleviated with increasing initial CH(4) concentration, i.e. then was an interaction of NH(4)Cl and initial CH(4) concentration on the inhibitory effect. If the initial CH(4) concentration was sufficiently high (above similar to 2000 mu l l(-1) for Wuxi soil and similar to 1000 mu l l(-1) for Yingtan soil), the initial inhibitory effect was alleviated and then eliminated during subsequent incubations. Eventually, NH(4)Cl addition stimulated the CH(4) oxidation rate. If the initial CH(4) concentration was not sufficiently high (less than 500 mu l l(-1) in the headspace for both soils), the inhibitory effect was maintained during subsequent incubations. Considering the fact that the CH(4) concentration in paddy soils when they are flooded is generally higher than similar to 2000 mu l l(-1), we conclude that the initial effect of NH(4)Cl addition on CH(4) oxidation in paddy soils is temporary. (C) 2000 Elsevier Science Ltd. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | CH4 OXIDATION ; RICE PADDIES ; NITROGEN-FERTILIZATION ; ATMOSPHERIC METHANE ; SEASONAL-VARIATION ; FOREST SOILS ; FLUXES ; INHIBITION ; KINETICS ; AMMONIUM |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000089490700007 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2559113 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Cai, ZCC |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, Nanjing, Peoples R China 2.USDA ARS, Ft Collins, CO 80522 USA |
| 推荐引用方式 GB/T 7714 | Cai, ZCC,Mosier, AR. Effect of NH(4)Cl addition on methane oxidation by paddy soils[J]. SOIL BIOLOGY & BIOCHEMISTRY,2000,32(11-12):1537-1545. |
| APA | Cai, ZCC,&Mosier, AR.(2000).Effect of NH(4)Cl addition on methane oxidation by paddy soils.SOIL BIOLOGY & BIOCHEMISTRY,32(11-12),1537-1545. |
| MLA | Cai, ZCC,et al."Effect of NH(4)Cl addition on methane oxidation by paddy soils".SOIL BIOLOGY & BIOCHEMISTRY 32.11-12(2000):1537-1545. |
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来源：南京土壤研究所
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