Biodegradable microplastics increase fungi-mediated N2O emission by rapidly releasing dissolved organic matters
文献类型：期刊论文
| 作者 | Zhong, Lei1; Song, Yufeng1; Cai, Xiaoxian1; Wang, Ping1; Yu, Guanqi1; Liu, Jia2; Su, Xiaoxuan3; Xu, Xingliang4 |
| 刊名 | APPLIED SOIL ECOLOGY
 |
| 出版日期 | 2025-11-01 |
| 卷号 | 215页码:106444 |
| 关键词 | PBAT PE Denitrification Plastic additives |
| ISSN号 | 0929-1393 |
| DOI | 10.1016/j.apsoil.2025.106444 |
| 产权排序 | 4 |
| 文献子类 | Article |
| 英文摘要 | Plastic pollution in paddy fields disrupts soil nitrogen biogeochemistry, prompting the introduction of biodegradable plastics like PBAT (poly (butylene adipate-co-terephthalate)) as a potential mitigation strategy to plastic pollution reduction. However, the effects of nonbiodegradable and biodegradable microplastics on the nitrogen cycle remain unclear. To clarify this, we conducted an incubation experiment, N2O isotopocules, and molecular analysis to assess the impact of additives from PBAT and non-biodegradable (polyethylene, PE) microplastics. This study aimed to investigate their effects on N2O emission from bacterial, fungal, and chemical denitrification. The results showed that PE reduced N2O production potential from denitrification (DN2O) and bacterial denitrification (BDN2O), while PBAT (poly (butylene adipate-co-terephthalate)) increased DN2O and fungal-derived N2O (FDN2O) but decreased BDN2O. PE inhibited N2O production via bacterial denitrification due to the toxicity of plastic additives such as dibutyl phthalate (DBP) and diethylhexyl phthalate (DEHP). In contrast, PBAT enhanced N2O production via fungal pathways by facilitating the release of dissolved organic carbon. Bacterial denitrification accounted for 43-56% of total N2O production potential (DN2O) in PE treatments but only 28-50% in PBAT treatments. These findings highlight the short-term risks posed by biodegradable microplastics in elevating N2O emissions and reveal new dimensions of the influence of microplastics on greenhouse gas emissions from agricultural soils. |
| URL标识 | 查看原文 |
| WOS关键词 | NITROUS-OXIDE PRODUCTION ; DENITRIFICATION ; SOILS ; FRACTIONATION ; DIVERSITY ; ISOTOPES ; BACTERIA ; NIRK ; N-15 |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:001572468200001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/216042]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 通讯作者 | Zhong, Lei; Xu, Xingliang |
| 作者单位 | 1.Tianjin Univ, Sch Environm Sci & Engn, Tianjin 300350, Peoples R China; 2.Jiangxi Acad Agr Sci, Soil & Fertilizer & Resources & Environm Inst, Nanchang 330200, Peoples R China; 3.Southwest Univ, Coll Resources & Environm, Interdisciplinary Res Ctr Agr Green Dev Yangtze Ri, Chongqing 400715, Peoples R China; 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhong, Lei,Song, Yufeng,Cai, Xiaoxian,et al. Biodegradable microplastics increase fungi-mediated N2O emission by rapidly releasing dissolved organic matters[J]. APPLIED SOIL ECOLOGY,2025,215:106444. |
| APA | Zhong, Lei.,Song, Yufeng.,Cai, Xiaoxian.,Wang, Ping.,Yu, Guanqi.,...&Xu, Xingliang.(2025).Biodegradable microplastics increase fungi-mediated N2O emission by rapidly releasing dissolved organic matters.APPLIED SOIL ECOLOGY,215,106444. |
| MLA | Zhong, Lei,et al."Biodegradable microplastics increase fungi-mediated N2O emission by rapidly releasing dissolved organic matters".APPLIED SOIL ECOLOGY 215(2025):106444. |
入库方式： OAI收割
来源：地理科学与资源研究所
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