The impact of biodegradable plastics on methane and carbon dioxide emissions in soil ecosystems: a Fourier transform infrared spectroscopy approach

文献类型： 外文期刊

第一作者： Wang, Yihao

作者： Wang, Yihao;Jiao, Leizi;Zhao, Chunjiang;Dong, Wentao;Gong, Wenwen;Dong, Daming;Wang, Yihao

作者机构：

期刊名称：SCIENTIFIC REPORTS （ 影响因子：3.9； 五年影响因子：4.3 ）

ISSN： 2045-2322

年卷期： 2025 年 15 卷 1 期

页码：

收录情况： SCI

摘要： Biodegradable plastics (BPs), promising eco-friendliness, raise environmental concerns as they degrade into numerous microplastics (Bio-MPs). The impact of Bio-MPs on methane (CH4) and carbon dioxide (CO2) emissions in soil ecosystems remains largely unexplored. Utilizing Fourier transform infrared (FTIR) spectroscopy, we innovatively designed a circulating system, integrating a long optical-path gas cell with a static chamber for continuous and convenient CH4/CO2 monitoring in paddy soils with the addition of Bio-MPs (PBAT). On the 7th day of incubation, we observed a significant increase in CH4/CO2 absorption peaks due to the addition of PBAT, with enhancements of 92-fold and 213-fold, respectively. Built upon this system, we explored a quantitative method based on the main absorption peak (3010 cm-1) for CH4, and calculated cumulative emissions. Additionally, we analyzed attenuated total reflection (ATR) spectra of soil with and without Bio-MPs based on FTIR spectrometer, revealing the characteristic response in soil ATR spectra triggered by PBAT, and demonstrating ATR spectroscopy's potential for identifying soil contamination by Bio-MPs. This study aims to broaden and improve the utilization of FTIR spectroscopy for the purpose of monitoring soil GHG emissions and identifying soil contaminated by Bio-MPs, thereby offering significant insights into the influence of Bio-MPs on climate change.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序