| Water dissolved nitrous oxide from paddy agroecosystem in China | |
| Xiong, Z. Q.; Xing, G. X.; Zhu, Z. L. | |
| 刊名 | GEODERMA
 |
| 2006-12-15 | |
| 卷号 | 136期号:3-4页码:524-532 |
| 关键词 | dissolved nitrous oxide greenhouse gases groundwater nitrate leaching paddy field surface water |
| ISSN号 | 0016-7061 |
| DOI | 10.1016/j.geoderma.2006.04.010 |
| 通讯作者 | Xiong, Z. Q.(zhengqin@pdx.edu) |
| 英文摘要 | Although nitrous oxide emission from agricultural leaching and runoff is thought to constitute a globally important source of this greenhouse gas, water dissolved N2O in paddy ecosystems is poorly understood and scarcely reported where large amounts of fertilizer nitrogen are applied. This paper gives the results of a study assessing variability of the relationships between N2O and NO3- concentration in leachates from packed soil mesocosms, monolith lysimeters, and in wells, rivers and lakes in a region of China where land use is dominated by rice agriculture. Mesocosm and monolith experiments involved different application rates and types of fertilizer. From repetitive observations for each treatment in laboratory and field experiments and the results of the field surveys, we found that the average N2O/NO3- ratios in groundwater varied across space and were much lower than the current IPCC default value. Riparian zones may be hotspots of N2O production in the Tailut Valley and significant loss of NO3 occurs in riparian and surface water habitats. These findings are useful for calculating N2O emissions from aquatic ecosystems and lowland paddy agroecosystems. (c) 2006 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | GLOBAL N2O BUDGET ; CROPPING SYSTEMS ; AGRICULTURAL LAND ; EMISSIONS ; DENITRIFICATION ; SOIL ; ACCUMULATION ; PATTERNS ; FLUXES ; FIELD |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000243080400004 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2558581 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Xiong, Z. Q. |
| 作者单位 | 1.Portland State Univ, Dept Phys, Portland, OR 97207 USA 2.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiong, Z. Q.,Xing, G. X.,Zhu, Z. L.. Water dissolved nitrous oxide from paddy agroecosystem in China[J]. GEODERMA,2006,136(3-4):524-532. |
| APA | Xiong, Z. Q.,Xing, G. X.,&Zhu, Z. L..(2006).Water dissolved nitrous oxide from paddy agroecosystem in China.GEODERMA,136(3-4),524-532. |
| MLA | Xiong, Z. Q.,et al."Water dissolved nitrous oxide from paddy agroecosystem in China".GEODERMA 136.3-4(2006):524-532. |
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