Nitrous oxide and dinitrogen emissions from soil under different water regimes and straw amendment
文献类型：期刊论文
| 作者 | Cai, Z; Laughlin, RJ; Stevens, RJ |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2001 |
| 卷号 | 42期号:2页码:113-121 |
| 关键词 | N-2 evolution N2O evolution straw amendment water regime |
| ISSN号 | 0045-6535 |
| 通讯作者 | Cai, Z() |
| 英文摘要 | In a laboratory study, soil amended with and without wheat straw (2.8 g kg(-1) soil) was incubated under 70% water holding capacity (WHC), continuously flooded and flooded/drained cycle conditions at 30 degrees C for 51 days. Dinitrogen and N2O evolution and ammonia volatilisation were measured during the incubation. Extractable NH4+-N and NO3--N were determined at the end of the incubation. Entrapped N-2, N2O, and dissolved NH4+-N and NO3--N in drainage water were measured in the flooded/drained cycle treatment when the floodwater was drained. The results indicated that N loss through ammonia volatilisation was undetected in all treatments due to the low soil pH value (pH(H2O) = 5.87) and no air movement. The recovery of urea-N-15 as N-2 was lowest in the continuously flooded treatments (0.75% and 0.96% with and without straw amendment, respectively), highest in the 70% WHC treatments (5.65% and 4.41%, respectively), and intermediate in the flooded/drained cycle treatments (1.79% and 2.65%, respectively). The recovery of urea-N-15 as N2O was in the same order as that of N-2, negligible in the continuously flooded treatments, 0.01% and 0.07% in the flooded/drained cycle treatments, and 1.29% and 2.23% in the 70% WHC treatments, respectively. Peak N2O evolution rates were observed after the floodwater was drained but no substantial evolution was found after the soil was reflooded following drained periods. However, peak N-2 evolution rates were observed after the onset of both drainage and re-flooding. Considerable quantities of N-2 but no detectable N2O were entrapped in the flooded soil. (C) 2000 Elsevier Science Ltd. All rights reserved. |
| 收录类别 | ISTP ; SCI |
| WOS关键词 | AEROBIC CONDITIONS ; AMMONIUM-SULFATE ; DETERMINING N-15 ; ORGANIC-MATTER ; DENITRIFICATION ; RICE ; NITRIFICATION ; SUSPENSIONS ; RESIDUES ; NITRITE |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000089930600003 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2559170 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Cai, Z |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China 2.Queens Univ Belfast, Dept Agr & Environm Sci, Belfast BT9 5PX, Antrim, North Ireland 3.Dept Agr & Rural Dev, Agr & Environm Sci Div, Belfast BT9 5PX, Antrim, North Ireland |
| 推荐引用方式 GB/T 7714 | Cai, Z,Laughlin, RJ,Stevens, RJ. Nitrous oxide and dinitrogen emissions from soil under different water regimes and straw amendment[J]. CHEMOSPHERE,2001,42(2):113-121. |
| APA | Cai, Z,Laughlin, RJ,&Stevens, RJ.(2001).Nitrous oxide and dinitrogen emissions from soil under different water regimes and straw amendment.CHEMOSPHERE,42(2),113-121. |
| MLA | Cai, Z,et al."Nitrous oxide and dinitrogen emissions from soil under different water regimes and straw amendment".CHEMOSPHERE 42.2(2001):113-121. |
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来源：南京土壤研究所
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