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Author comment: Microplastics alter soil carbon cycling: Effects on carbon storage, CO2 and CH4 emission and microbial community — R1/PR4
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This systematic review summarizes existing research on how microplastics affect soil carbon cycling, including greenhouse gas emissions and carbon storage. It found that microplastics can alter soil chemistry and microbial communities in ways that may increase CO2 and methane release, with biodegradable plastics often having a bigger impact than conventional ones. These changes could contribute to climate change while also affecting the health of the soils where our food is grown.
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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Author comment: Microplastics alter soil carbon cycling: Effects on carbon storage, CO2 and CH4 emission and microbial community — R0/PR1
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This systematic review summarizes research on how microplastics in soil affect carbon storage, greenhouse gas emissions, and microbial communities. The findings suggest that microplastic pollution can alter fundamental soil processes that regulate our climate, highlighting how plastic contamination has far-reaching environmental consequences beyond direct health effects.
Microplastics alter soil carbon cycling: Effects on carbon storage, CO 2 and CH 4 emission and microbial community
AI summary Read the abstract
This systematic review examines how microplastics in soil affect carbon cycling, including greenhouse gas emissions and carbon storage. The effects depend heavily on plastic type and size, with biodegradable plastics generally having a bigger impact. Understanding these soil-level changes matters because disrupted carbon cycles can worsen climate change, which in turn affects the food and water systems we all depend on.
Decision: Microplastics alter soil carbon cycling: Effects on carbon storage, CO2 and CH4 emission and microbial community — R0/PR3
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This systematic review summarizes what we know about how microplastics in soil affect carbon storage and greenhouse gas emissions. It found that microplastics can change soil properties and microbial communities, potentially increasing the release of CO2 and methane. The effects depend on the type, size, and amount of plastic present, and the underlying mechanisms are still not fully understood.
Recommendation: Microplastics alter soil carbon cycling: Effects on carbon storage, CO2 and CH4 emission and microbial community — R0/PR2
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This systematic review summarizes research on how microplastic pollution in soil changes carbon storage and greenhouse gas emissions. The findings show that microplastics can shift microbial communities and alter the balance of carbon dioxide and methane released from soil, suggesting that plastic pollution may be contributing to climate change in ways we are still working to understand.
Decision: Microplastics alter soil carbon cycling: Effects on carbon storage, CO2 and CH4 emission and microbial community — R1/PR6
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This systematic review examines how microplastics in soil affect the carbon cycle — including carbon storage, greenhouse gas emissions, and soil microbial communities. Microplastics can alter how much CO2 and methane soil releases, potentially worsening climate change. The findings suggest that as plastic pollution in farmland increases, it could disrupt the natural processes that keep carbon locked in the ground.
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