Ammonia volatilization and denitrification losses from an irrigated maize-wheat rotation field in the North China Plain
文献类型：期刊论文
| 作者 | Zhang, YM; Chen, DL; Zhang, JB; Edis, R; Hu, CS; Zhu, AN |
| 刊名 | PEDOSPHERE
 |
| 出版日期 | 2004-11-01 |
| 卷号 | 14期号:4页码:533-540 |
| 关键词 | ammonia volatilization denitrification gaseous N loss N2O emission |
| ISSN号 | 1002-0160 |
| 通讯作者 | Zhang, YM(ymzhang@ms.sjziam.ac.cn) |
| 英文摘要 | Ammonia (NH3) volatilization, denitrification loss, and nitrous oxide (N2O) emission were investigated from an irrigated wheat-maize rotation field on the North China Plain, and the magnitude of gaseous N loss from denitrification and NH3 volatilization was assessed. The micrometeorological gradient diffusion method in conjunction with a Bowen Ratio system was utilized to measure actual NH3 fluxes over a large area, while the acetylene inhibition technique (intact soil cores) was employed for measurement of denitrification losses and N2O emissions. Ammonia volatilization loss was 26.62% of the applied fertilizer nitrogen (N) under maize, while 0.90% and 15.55% were lost from the wheat field at sowing and topdressing, respectively. The differences in NH3 volatilization between different measurement events may be due to differences between the fertilization methods, and to differences in climatic conditions such as soil temperature. Denitrification losses in the fertilized plots were 0.67%-2.87% and 0.31%-0.49% of the applied fertilizer N under maize and wheat after subtracting those of the controls, respectively. Nitrous oxide emissions in the fertilized plots were approximately 0.08%-0.41% and 0.26%-0.34% of the applied fertilizer N over the maize and wheat seasons after subtracting those of the controls, correspondingly. The fertilizer N losses due to NH3 volatilization were markedly higher than those through denitrification and nitrous oxide emissions. These results indicated that NH3 volatilization was an important N transformation in the, crop-soil system and was likely to be the major cause of low efficiencies with N fertilizer in the study area. Denitrification was not a very important pathway of N fertilizer loss, but did result in important evolution of the greenhouse gas N2O and the effect of N2O emitted from agricultural fields on environment should not be overlooked. |
| 收录类别 | SCI |
| WOS关键词 | NITROUS-OXIDE EMISSIONS ; FERTILIZER ; SOIL ; NITRIFICATION ; CROP |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000224774000015 |
| 出版者 | SCIENCE CHINA PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2559357 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Zhang, YM |
| 作者单位 | 1.Chinese Acad Sci, Inst Genet & Dev Biol, Shijiazhuang 050021, Peoples R China 2.Univ Melbourne, Inst Land & Food Resource, Dept Resource Management & Hort, Parkville, Vic 3052, Australia 3.Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, YM,Chen, DL,Zhang, JB,et al. Ammonia volatilization and denitrification losses from an irrigated maize-wheat rotation field in the North China Plain[J]. PEDOSPHERE,2004,14(4):533-540. |
| APA | Zhang, YM,Chen, DL,Zhang, JB,Edis, R,Hu, CS,&Zhu, AN.(2004).Ammonia volatilization and denitrification losses from an irrigated maize-wheat rotation field in the North China Plain.PEDOSPHERE,14(4),533-540. |
| MLA | Zhang, YM,et al."Ammonia volatilization and denitrification losses from an irrigated maize-wheat rotation field in the North China Plain".PEDOSPHERE 14.4(2004):533-540. |
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来源：南京土壤研究所
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