Nitrogen transformation and N2O production pathways under arsenic and cadmium stress in Chongming Island, China
文献类型：期刊论文
| 作者 | Jiang, Yinghui4; Yin, Guoyu2,3,4; Nie, Minghua4; Yan, Caixia4; Ding, Mingjun4; Zhang, Hua4; Lei, Mei1; Ge, Yong4 |
| 刊名 | MARINE POLLUTION BULLETIN
 |
| 出版日期 | 2025-12-01 |
| 卷号 | 221页码:118485 |
| 关键词 | Nitrogen transformation N2O production pathways Heavy metal(loid) Chongming Island |
| ISSN号 | 0025-326X |
| DOI | 10.1016/j.marpolbul.2025.118485 |
| 产权排序 | 4 |
| 文献子类 | Article |
| 英文摘要 | Heavy metal(loid) pollution can adversely affect microbial diversity within the soil ecosystem, which are profoundly impacting soil nitrogen (N) cycling and nitrous oxide (N2O) emissions. Here, O-18-N-15 labeling techniques based on incubation experiment were used to investigate the N transformation and N2O production pathways response to moderately contaminated, heavily contaminated and extremely contaminated of arsenic (As) and cadmium (Cd) levels in paddy soil and coastal wetland. In paddy soil, ammonification rate (PAT) and nitrification rate (PNT) decreased by 15.57 %-48.75 % and 19.62 %-30.13 %, respectively. The denitrification rate (DEN) increased by 34.07 %, 59.81 % and 74.82 % from the control (CK) treatment to the extremely contaminated treatment in paddy soil. In coastal wetland, DEN decreased by 13.60 %, 19.30 %, and 27.25 % from the CK treatment to the extremely contaminated treatment, but PAT and PNT rates increased by 0.71 %-51.05 % and 73.27 %-119.81 %, respectively. As and Cd addition changed soil properties, which altered the dynamics of DEN rate and increased N2O production contributed by heterotrophic denitrification (HD) and nitrification-coupled denitrification (NCD) pathways. Changes of nitrifier nitrification (NN) and nitrifier denitrification (ND) pathways derived N2O production were related to PNT rate and NO2- dynamics, respectively. Results of PAT, PNT and DEN changes affected by As and Cd addition indicated that heavy metal(loid) pollution promotes reactive N production but inhibits N removal in coastal wetland, and heavy metal(loid) in paddy soil promoted N loss but exacerbating N limitation. Therefore, heavy metal(loid) pollution regulates N transformation and intensifies N pollution and global warming. |
| URL标识 | 查看原文 |
| WOS关键词 | NITRATE REDUCTION PROCESSES ; PADDY SOILS ; NITRIFIER DENITRIFICATION ; OXIDE PRODUCTION ; COASTAL WETLAND ; DYNAMICS ; ESTUARINE ; EMISSIONS ; SEDIMENTS ; RATES |
| WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology |
| 语种 | 英语 |
| WOS记录号 | WOS:001543144000005 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/215525]  |
| 专题 | 资源利用与环境修复重点实验室_外文论文 |
| 通讯作者 | Yin, Guoyu |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.East China Normal Univ, Sch Geog Sci, Shanghai 200241, Peoples R China; 3.East China Normal Univ, Minist Educ, Key Lab Geog Informat Sci, Shanghai 200241, Peoples R China; 4.Jiangxi Normal Univ, Sch Geog & Environm, Nanchang 330022, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Jiang, Yinghui,Yin, Guoyu,Nie, Minghua,et al. Nitrogen transformation and N2O production pathways under arsenic and cadmium stress in Chongming Island, China[J]. MARINE POLLUTION BULLETIN,2025,221:118485. |
| APA | Jiang, Yinghui.,Yin, Guoyu.,Nie, Minghua.,Yan, Caixia.,Ding, Mingjun.,...&Ge, Yong.(2025).Nitrogen transformation and N2O production pathways under arsenic and cadmium stress in Chongming Island, China.MARINE POLLUTION BULLETIN,221,118485. |
| MLA | Jiang, Yinghui,et al."Nitrogen transformation and N2O production pathways under arsenic and cadmium stress in Chongming Island, China".MARINE POLLUTION BULLETIN 221(2025):118485. |
入库方式： OAI收割
来源：地理科学与资源研究所
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