文献类型： 外文期刊

作者： Iqbal, Shahid ¹ ; Xu, Jianchu ² ; Arif, Muhammad Saleem ³ ; Worthy, Fiona R. ⁴ ; Jones, Davey L. ⁵ ; Khan, Sehroon ⁷ ; Alharbi, Sulaiman Ali ⁸ ; Filimonenko, Ekaterina ⁹ ; Nadir, Sadia ⁷ ; Bu, Dengpan ¹⁰ ; Shakoor, Awais ¹¹ ; Gui, Heng ¹ ; Schaefer, Douglas Allen ¹ ; Kuzyakov, Yakov ¹³ ;

作者机构： 1.Chinese Acad Sci, Kunming Inst Bot, Dept Econ Plants & Biotechnol, Yunnan Key Lab Wild Plant Resources, Kunming 650201, Yunnan, Peoples R China

2.Chinese Acad Sci, Kunming Inst Bot, Honghe Ctr Mt Futures, Honghe 654400, Yunnan, Peoples R China

3.Govt Coll Univ Faisalabad, Dept Environm Sci, Faisalabad 38000, Pakistan

4.Chinese Acad Sci, Kunming Inst Bot, Yunnan Key Lab Fungal Divers & Green Dev, Kunming 650201, Yunnan, Peoples R China

5.Bangor Univ, Environm Ctr Wales, Sch Nat Sci, Bangor LL57 2UW, Gwynedd, Wales

6.Murdoch Univ, Food Futures Inst, Ctr Sustainable Farming Syst, Soils West, Murdoch, WA 6105, Australia

7.Univ Sci & Technol Bannu, Fac Nat Sci, Dept Biotechnol, Bannu 28100, Khyber Pakhtunk, Pakistan

8.King Saud Univ, Coll Sci, Dept Bot & Microbiol, Riyadh 11451, Saudi Arabia

9.Univ Tyumen, Ctr Isotope Biogeochem, Tyumen 625003, Russia

10.Chinese Acad Agr Sci, Inst Anim Sci, State Key Lab Anim Nutr, Beijing 100193, Peoples R China

11.Johnstown Castle Co, Environm Soils & Land Use Dept, Teagasc, Wexford Y35 Y521, Ireland

12.Western Sydney Univ, Hawkesbury Inst Environm, Penrith, NSW 2751, Australia

13.Univ Goettingen, Dept Soil Sci Temperate Ecosyst, Dept Agr Soil Sci, D-37077 Gottingen, Germany

14.Peoples Friendship Univ Russia, RUDN Univ, Moscow 117198, Russia

15.Inst Environm Sci Kazan Fed Univ, Inst Environm Sci, Kazan 420049, Russia

16.World Agroforestry ICRAF, CIFOR ICRAF China Program, Kunming 650201, Yunnan, Peoples R China

关键词： ecosystem response; emergingpollutant; nutrientcycling; soil health; soil organic matter

期刊名称：ENVIRONMENTAL SCIENCE & TECHNOLOGY （ 影响因子：11.4； 五年影响因子：12.0 ）

ISSN： 0013-936X

年卷期： 2024 年 58 卷 19 期

页码：

收录情况： SCI

摘要： Microplastics threaten soil ecosystems, strongly influencing carbon (C) and nitrogen (N) contents. Interactions between microplastic properties and climatic and edaphic factors are poorly understood. We conducted a meta-analysis to assess the interactive effects of microplastic properties (type, shape, size, and content), native soil properties (texture, pH, and dissolved organic carbon (DOC)) and climatic factors (precipitation and temperature) on C and N contents in soil. We found that low-density polyethylene reduced total nitrogen (TN) content, whereas biodegradable polylactic acid led to a decrease in soil organic carbon (SOC). Microplastic fragments especially depleted TN, reducing aggregate stability, increasing N-mineralization and leaching, and consequently increasing the soil C/N ratio. Microplastic size affected outcomes; those <200 mu m reduced both TN and SOC contents. Mineralization-induced nutrient losses were greatest at microplastic contents between 1 and 2.5% of soil weight. Sandy soils suffered the highest microplastic contamination-induced nutrient depletion. Alkaline soils showed the greatest SOC depletion, suggesting high SOC degradability. In low-DOC soils, microplastic contamination caused 2-fold greater TN depletion than in soils with high DOC. Sites with high precipitation and temperature had greatest decrease in TN and SOC contents. In conclusion, there are complex interactions determining microplastic impacts on soil health. Microplastic contamination always risks soil C and N depletion, but the severity depends on microplastic characteristics, native soil properties, and climatic conditions, with potential exacerbation by greenhouse emission-induced climate change.