Microplastic presence significantly alters soil nitrogen transformation and decreases nitrogen bioavailability under contrasting temperatures
文献类型：期刊论文
| 作者 | Shi, Jia1; Wang, Jie2; Lv, Junfei1; Wang, Zi1; Peng, Yumei1; Wang, Xiang1,3 |
| 刊名 | JOURNAL OF ENVIRONMENTAL MANAGEMENT
 |
| 出版日期 | 2022-09-01 |
| 卷号 | 317页码:12 |
| 关键词 | Microplastic pollution Biodegradable plastics Soil enzyme activity Soil N transformation |
| ISSN号 | 0301-4797 |
| DOI | 10.1016/j.jenvman.2022.115473 |
| 通讯作者 | Wang, Xiang(wangxiang@cau.edu.cn) |
| 英文摘要 | Plastic mulch is frequently used to increase crop yield, resulting in large quantities of residues accumulating in soil due to low recovery rates. However, the effects of microplastic residues from traditional and biodegradable plastic films on soil nitrogen (N) transformation and bioavailability are not well understood. Here, the main objectives were to examine the effects of micro-sized residues (diameter <5 mm) of polyethylene (PE) and biodegradable plastic mulch films (PLA) on the soil N in two contrasting soils (clay soil and sandy loam soil) in different temperatures (15 degrees C vs. 25 degrees C). Results showed that the micmplastic presence showed a little effect on soil N transformation and bioavailability at 15 degrees C, but both micmplastics significantly decreased NO3-, mineral N (MN), total dissolved N (TDN), the net cumulative N nitrification (Nn), and the net cumulative N mineralization (Nm) at 25 degrees C, indicating that microplastics decreased soil N bioavailability at elevated temperature. Meanwhile, the microplastics significantly reduced the temperature sensitivity (Q(10)) of N mineralization. The presence of microplastics changed the composition of soil mineral N with lower relative NO3- and higher NH4+ compared to the control in clay soil. The sandy loam soil was more susceptible to microplastic pollution compared to clay soil in N transformation, due to different textures and biochemistry properties in the two soils, which showed that microplastics have a significant soil heterogeneity-dependent effect on soil N processes. Therefore, the results underline that the effects of microplastic residues on soil N cycling can be partly linked to soil properties, suggesting the urgent need for further studies examining their impacts on soil nutrient cycling in different soil systems. |
| WOS关键词 | BIOCHAR |
| 资助项目 | State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau[A314021402-2008] ; Inner Mongolia Autonomous Region Research Rroject: Rejuvenating the Inner mongolia with science and technology[2021EEDSCXSFQZD011] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000833531400010 |
| 出版者 | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
| 资助机构 | State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau ; Inner Mongolia Autonomous Region Research Rroject: Rejuvenating the Inner mongolia with science and technology |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/181951]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wang, Xiang |
| 作者单位 | 1.China Agr Univ, Coll Land Sci & Technol, Beijing 100193, Peoples R China 2.China Agr Univ, Coll Resources & Environm Sci, Beijing 100193, Peoples R China 3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, Jia,Wang, Jie,Lv, Junfei,et al. Microplastic presence significantly alters soil nitrogen transformation and decreases nitrogen bioavailability under contrasting temperatures[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2022,317:12. |
| APA | Shi, Jia,Wang, Jie,Lv, Junfei,Wang, Zi,Peng, Yumei,&Wang, Xiang.(2022).Microplastic presence significantly alters soil nitrogen transformation and decreases nitrogen bioavailability under contrasting temperatures.JOURNAL OF ENVIRONMENTAL MANAGEMENT,317,12. |
| MLA | Shi, Jia,et al."Microplastic presence significantly alters soil nitrogen transformation and decreases nitrogen bioavailability under contrasting temperatures".JOURNAL OF ENVIRONMENTAL MANAGEMENT 317(2022):12. |
入库方式： OAI收割
来源：地理科学与资源研究所
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