Straw incorporation into microplastic-contaminated soil can reduce greenhouse gas emissions by enhancing soil enzyme activities and microbial community structure

Shah, Tariq; Khan, Zeeshan; Asad, Muhammad; Imran, Ayesha; Niazi, Muhammad Bilal Khan; Dewil, Raf; Ahmad, Ajaz; Ahmad, Parvaiz

doi:10.1016/j.jenvman.2023.119616

Cited by 10 publications

(1 citation statement)

References 65 publications

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“…It was found that MPs reduced SOC mineralization, offsetting the increase in CO 2 emission caused by maize straw, and that the inhibitory effect was more evident in the fluvo-aquic soil. Similarly, Shah et al (2024) found that the presence of PE MPs reduced the carbon emission in soils amended with legume straw. When combined with glucose or rice straw, PE MPs (0.01%) reduced SOM-derived CO 2 by 13.2% or 7.1%, implying that MPs may limit the decomposition of soil organic matter, glucose or straw (Xiao et al, 2021).…”

Section: Effect Of Mps On Soil Co 2 Emissionmentioning

confidence: 84%

Microplastics alter soil carbon cycling: Effects on carbon storage, CO₂ and CH₄ emission and microbial community

Chang,

Zhou,

Hua

et al. 2024

Camb. prisms Plast.

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Microplastics (MPs) are carbon-rich polymers that are ubiquitous in the environment. With the increase of plastic production, microplastic pollution may be exacerbated and result in significant changes in microbial communities and biogeochemical processes such as carbon cycling, eventually impacting greenhouse gas emission and carbon storage in terrestrial ecosystems. However, current research on the effect of MPs on soil carbon cycling is still limited, and there is a lack of systematic review of the scattered information obtained from previous studies. Accordingly, this review provides a systematic overview of the current knowledge on the effects of MPs on soil carbon cycling and gives future research suggestions. Emerging evidence indicates that MPs could affect soil carbon stability and CO2 and CH4 emission by modifying soil physicochemical and microbiological properties; though biodegradable MPs often exhibit a greater effect than nonbiodegradable ones, the specific effects are highly dependent on plastic type, size and concentration. The specific mechanisms of MPs’ impact on soil carbon cycles remain elusive, which are discussed mainly from the perspective of microbial changes, including microbial biomass, microbial community composition, and key enzymes and functional genes associated with carbon metabolism. Further research is needed to elucidate whether MPs have a positive priming effect on soil carbon decomposition and the biotic and abiotic mechanisms involved. This review paper helps researchers gain a clearer picture of how and through which way MPs impact carbon cycling in soil ecosystems.

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Section: Effect Of Mps On Soil Co 2 Emissionmentioning

confidence: 84%

Microplastics alter soil carbon cycling: Effects on carbon storage, CO₂ and CH₄ emission and microbial community

Chang,

Zhou,

Hua

et al. 2024

Camb. prisms Plast.

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Microplastics affect ecosystem multifunctionality: Increasing evidence from soil enzyme activities

Wang,

Pei,

Zhang

et al. 2024

Land Degrad Dev

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Microplastics (MPs) as emerging contaminants have a global occurrence, including both terrestrial and marine ecosystems. Soil enzymes contribute to maintaining ecosystem multifunctionality, for example, nutrient cycling, organic material decomposition, and carbon and climate regulation. Our present review highlights the impacts of MPs on soil enzyme activities, influencing factors, and the underlying mechanisms. Increasing findings confirm that MPs can change the activities of a range of soil enzymes involved in the biogeochemical cycling of C and N. However, current results are highly controversial. The effects of MPs highly vary from significant to nonsignificant and are dependent on polymer type, biodegradability, dosage, size, shape, and aging degree of MPs, and exposure conditions. Compared to traditional MPs, biodegradable MPs generally show more pronounced effects. MPs can change soil enzyme activities via different pathways. On one hand, MPs can directly change soil enzyme structure, leading to alterations in enzyme activity. On the other hand, MPs can create unique habitats, provide carbon sources for specific functional microbes producing enzymes, and release plastic additives and pollutants disturbing the production of these enzymes. Furthermore, MPs can alter soil physicochemical and biological properties, the availability of substrates, plants and soil fauna, regulating soil enzymes and their functions. In conclusion, MPs can regulate soil enzyme activities and pose a profound impact on ecosystem multifunctionality.

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Coated and un-coated urea incorporated with organic fertilizer improves rice nitrogen uptake and mitigates gaseous active nitrogen loss and microplastic pollution

Zhang,

Tao,

Zhu

et al. 2024

Agriculture, Ecosystems & Environment

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Straw incorporation into microplastic-contaminated soil can reduce greenhouse gas emissions by enhancing soil enzyme activities and microbial community structure

Cited by 10 publications

References 65 publications

Microplastics alter soil carbon cycling: Effects on carbon storage, CO₂ and CH₄ emission and microbial community

Microplastics alter soil carbon cycling: Effects on carbon storage, CO₂ and CH₄ emission and microbial community

Microplastics affect ecosystem multifunctionality: Increasing evidence from soil enzyme activities

Coated and un-coated urea incorporated with organic fertilizer improves rice nitrogen uptake and mitigates gaseous active nitrogen loss and microplastic pollution

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Straw incorporation into microplastic-contaminated soil can reduce greenhouse gas emissions by enhancing soil enzyme activities and microbial community structure

Cited by 10 publications

References 65 publications

Microplastics alter soil carbon cycling: Effects on carbon storage, CO2 and CH4 emission and microbial community

Microplastics alter soil carbon cycling: Effects on carbon storage, CO2 and CH4 emission and microbial community

Microplastics affect ecosystem multifunctionality: Increasing evidence from soil enzyme activities

Coated and un-coated urea incorporated with organic fertilizer improves rice nitrogen uptake and mitigates gaseous active nitrogen loss and microplastic pollution

Contact Info

Product

Resources

About

Microplastics alter soil carbon cycling: Effects on carbon storage, CO₂ and CH₄ emission and microbial community

Microplastics alter soil carbon cycling: Effects on carbon storage, CO₂ and CH₄ emission and microbial community