Dung and farm dairy effluent affect urine patch nitrous oxide emissions from a pasture
文献类型：期刊论文
| 作者 | Lindsey, S.1; Li, J.1,2; Luo, J.1; Shi, Y.2; Li, Y.3; Ma, Y.4; Ledgard, S.1; Wang, L.2; Houlbrooke, D.1; Bo, L.3 |
| 刊名 | ANIMAL PRODUCTION SCIENCE
 |
| 出版日期 | 2016 |
| 卷号 | 56期号:2-3页码:337-342 |
| 关键词 | Animal Excreta Nitrate Leaching Nitrogen Nutrient Management Soil |
| ISSN号 | 1836-0939 |
| DOI | 10.1071/AN15511 |
| 英文摘要 | Urine patches in grazed pastures have been identified as important sources of nitrous oxide (N2O) emissions. An increase in N2O emissions is possible where urine patches coincide with dung patches and farm dairy effluent (FDE) applications. The aim of the present study was to quantify the effects of dung additions and fresh FDE applications on N2O emissions from urine patches. A field experiment was conducted on a pasture site at the AgResearch's Ruakura dairy farm in Hamilton, New Zealand. A closed soil chamber technique was used to measure the N2O emissions from a free-draining volcanic soil that received urine (492 kg N/ha, simulated urine patches), with or without dung (1146 kg N/ha) and fresh FDE (100 kg N/ha) and to compare these with controls receiving no urine. The addition of dung delayed the peak N2O fluxes from the urine patches by similar to 30 days. This could be due to temporary nitrogen (N) immobilisation during decomposition of carbon from the dung. However, over the whole measurement period (271 days), dung addition increased the N2O emission factor (EF, % of applied N emitted as N2O) for the urine from 1.02% to 2.09%. The application of fresh FDE increased the EF to 1.40%. The effluent- or dung-induced increases in N2O emissions from the urine patches were possibly caused both by the direct input of N from effluent or dung and through the indirect priming effect of addition of dung or effluent on the availability of N from urine patches for N2O production. We conclude that when EFs are used in calculations of N2O emissions from urine, consideration should be given to the likelihood of coincidence with dung or FDE applications. |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000370060000024 |
| 出版者 | CSIRO PUBLISHING |
| 源URL | [http://210.72.129.5/handle/321005/122451]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Luo, J. |
| 作者单位 | 1.AgResearch Ltd, Ruakura Res Ctr, Private Bag 3123, Hamilton, New Zealand 2.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Liaoning, Peoples R China 3.Shandong Acad Agr Sci, Inst Agr Resources & Environm, Jinan 250100, Peoples R China 4.Anhui Agr Univ, Hefei 230036, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lindsey, S.,Li, J.,Luo, J.,et al. Dung and farm dairy effluent affect urine patch nitrous oxide emissions from a pasture[J]. ANIMAL PRODUCTION SCIENCE,2016,56(2-3):337-342. |
| APA | Lindsey, S..,Li, J..,Luo, J..,Shi, Y..,Li, Y..,...&Bo, L..(2016).Dung and farm dairy effluent affect urine patch nitrous oxide emissions from a pasture.ANIMAL PRODUCTION SCIENCE,56(2-3),337-342. |
| MLA | Lindsey, S.,et al."Dung and farm dairy effluent affect urine patch nitrous oxide emissions from a pasture".ANIMAL PRODUCTION SCIENCE 56.2-3(2016):337-342. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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