| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2021-01-04 |
| タイトル |
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|
タイトル |
Effect of low C/N crop residue input on N2O, NO, and CH4 fluxes from Andosol and Fluvisol fields |
| タイトル |
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|
タイトル |
Effect of low C/N crop residue input on N2O, NO, and CH4 fluxes from Andosol and Fluvisol fields |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| キーワード |
|
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主題Scheme |
Other |
|
主題 |
N fertilizer application |
| キーワード |
|
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主題Scheme |
Other |
|
主題 |
Methane oxidation |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Greenhouse gas emissions |
| キーワード |
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主題Scheme |
Other |
|
主題 |
Nitrous oxide |
| キーワード |
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主題Scheme |
Other |
|
主題 |
Nitric oxide |
| キーワード |
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|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
N fertilizer application |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Methane oxidation |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Greenhouse gas emissions |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Nitrous oxide |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Nitric oxide |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
秋山, 博子
山本, 昭範
内田, 義崇
星野, 裕子
多胡, 香奈子
王, 勇
早津, 雅仁
|
| 抄録 |
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内容記述タイプ |
Abstract |
|
内容記述 |
Crop residues are produced from agriculture in large amounts globally. Crop residues are known to be a source of nitrous oxide (N2O); however, contrasting results have been reported. Furthermore, the effect of crop residues on nitric oxide (NO) and methane (CH4) fluxes has not been well studied. We investigated N2O, NO, and CH4 fluxes after low C/N crop residue (cabbages and potatoes) inputs to lysimeter fields for two years using with automated flux monitoring system. Lysimeters were filled with two contrasting soil types, Andosol (total C: 33.1 g kg−1; clay: 18%) and Fluvisol (17.7 g kg−1; 36%). Nitrogen application rates were 250 kg N ha−1 of synthetic fertilizer and 272 kg N ha−1 of cow manure compost for cabbage, and 120 kg N ha−1 of synthetic fertilizer and 136 kg N ha−1 of cow manure compost for potato, respectively. Large N2O peaks were observed after crop residues were left on the surface of the soil for 1 to 2 weeks in summer, but not in winter. The annual N2O emission factors (EFs) for cabbage residues were 3.02% and 5.37% for Andosol and Fluvisol, respectively. Those for potatoes were 7.51% and 5.10% for Andosol and Fluvisol, respectively. The EFs were much higher than the mean EFs of synthetic fertilizers from Japan's agricultural fields (0.62%). Moreover, the EFs were much higher than the Intergovernmental Panel on Climate Change (IPCC) default N2O EFs for synthetic fertilizers and crop residues (1%). The annual NO EFs for potatoes were 1.35% and 2.44% for Andosol and Fluvisol, respectively, while no emission was observed after cabbage residue input. Crop residues did not affect CH4 uptake by soil. Our results suggest that low C/N crop residue input to soils can create a hotspot of N2O emission, when temperature and water conditions are not limiting factors for microbial activity. |
| 書誌情報 |
Science of The Total Environment
en : Science of The Total Environment
巻 713,
p. 136677,
発行日 2020-04-15
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| 出版者 |
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出版者 |
Elsevier |
| ISSN |
|
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収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0048-9697 |
| DOI |
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関連タイプ |
isVersionOf |
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識別子タイプ |
DOI |
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|
関連識別子 |
10.1016/j.scitotenv.2020.136677 |
| 権利 |
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|
権利情報 |
PostPrint:The Author(s) |
| 権利 |
|
|
権利情報 |
2020 Published by Elsevier Ltd. |
| 情報源 |
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関連名称 |
SC30202003130021 |
| 情報源 |
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関連名称 |
NARO成果DBa |
| 情報源 |
|
|
|
関連名称 |
C30202001230001_7730 |
| 情報源 |
|
|
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関連名称 |
このアーカイブは著者版です。出版社版ではありません。引用の際には出版社版をご利用ください。 |
| 情報源 |
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|
関連名称 |
This is not the published version. Please cite only the published version. |
| 情報源 |
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関連名称 |
Green open Access /This journal has an embargo period of 24 months. |
| 関連サイト |
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|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.1016/j.scitotenv.2020.136677 |
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関連名称 |
Science of The Total Environment |
| 著者版フラグ |
|
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出版タイプ |
AM |
|
出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
NARO_SC30202003130021-C40201711280001_postprint (971.4 kB)
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