Long-Term Fertilization History Alters Effects of Microplastics on Soil Properties, Microbial Communities, and Functions in Diverse Farmland Ecosystem

Li, Hong-Zhe; Zhu, Dong; Lindhardt, Jonathan Hessner; Lin, Shan; Ke, Xin; Li, Cui

doi:10.1021/acs.est.0c04849

Cited by 177 publications

(48 citation statements)

References 70 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Following the application of microplastics, the number of keystones in the networks decreased. The disappearance of keystone species may cause dissociation of module and network, indicating their important roles in maintaining network stability (Li et al ., 2021; Lu et al ., 2013). As shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Microplastics reduce soil microbial network complexity and ecological deterministic selection

Shi

Sun

Xiang

et al. 2022

Environmental Microbiology

View full text Add to dashboard Cite

Microplastics have been proposed as emerging threats for terrestrial systems as they may potentially alter the physicochemical/biophysical soil environments. Due to the variety of properties of microplastics and soils, the microplastic-induced effects in soil ecosystems are greatly manifold. Here, we studied effects of three polymer microplastics (polyamide-6, polyethylene, and polyethylene terephthalate) on soil properties with four different soil types. The success patterns, interaction relationships, and assembly processes of soil bacterial communities were also studied. Microplastics have the potential to promote CO 2 emissions and enhance the soil humification. Even though microplastics did not significantly alter the diversity and composition of the soil microbial community, the application of microplastics decreased the network complexity and stability, including network size, connectivity, and the number of module and keystone species. The bacterial community assembly was governed by deterministic selection (77.3%-90.9%) in all treatments, while microplastics increased the contribution of stochastic processes from 9.1% in control to 13.6%-22.7%. The neutral model results also indicated most of the bacterial taxa were present in the predicted neutral region (approximately 98%), suggesting the importance of stochastic processes. These findings provided a fundamental insight in understanding the effects of microplastics on soil ecosystems.

show abstract

Section: Resultsmentioning

confidence: 99%

“…Li et al . (2021) conducted a short‐term microcosm experiment with polyethylene (PE) microplastics and three type soils (red soil, paddy soil, and fluvo‐aquic soil) and observed that microplastics reduced the pH of acid soil but increased the pH of alkaline soil. Yu et al .…”

Section: Introductionmentioning

confidence: 99%

Microplastics reduce soil microbial network complexity and ecological deterministic selection

Shi

Sun

Xiang

et al. 2022

Environmental Microbiology

View full text Add to dashboard Cite

show abstract

“…The changes in soil exchangeable cations are shown in Table 2. MPs can provide reactive surfaces to exchange cations, which can vary depending on the MP type (Li et al, 2021). MP addition resulted in a significant increase in the exchangeable K + content under both moisture conditions.…”

Section: Resultsmentioning

confidence: 99%

Combined effect of biochar and soil moisture on soil chemical properties and microbial community composition in microplastic‐contaminated agricultural soil

Dissanayake

Palansooriya

Sang

et al. 2022

Soil Use and Management

View full text Add to dashboard Cite

Accumulation of microplastics (MPs) in agricultural environments has caused growing concern in recent years because of its detrimental impacts on soil quality, crop productivity and ecosystem function. This study was conducted to assess the impact of biochar on soil chemical and microbial properties in a MP‐contaminated soil under two moisture regimes. Soil was contaminated with 1% (w/w) of low‐density polyethylene MPs. Four types of standard biochar, that is, oil seed rape (OSR) biochar produced at 550°C (OSR 550) and 700°C (OSR 700) and soft wood pellet (SWP) biochar produced at 550°C (SWP 550) and 700°C (SWP 700), were applied at a rate of 5% (w/w). The control was maintained without MP addition. The samples were incubated in soil with two moisture regimes, that is, at 30% and 70% of the water holding capacity, and the soil chemical and microbiological properties were assessed after 100 days of incubation. OSR biochar application significantly increased soil pH (8.53–8.81) and electrical conductivity (0.51–0.58 dS/m) in both moisture regimes. The effect of biochar application on soil enzyme activity and microbial community composition did not show a clear trend. However, SWP 700 biochar improved soil enzyme activity compared with that of the control and improved bacterial diversity and evenness compared with those of other biochars, which was attributed to the high surface area available for microbial colonization. Low soil moisture content significantly reduced enzyme activity and bacterial richness even with biochar amendment, except for SWP 550 biochar. This study implies the suitability of biochar for improvement of soil quality in MP contaminated soil under both moisture regimes. However, further long‐term studies are needed to get a clear understanding on the impact of different types of biochar on MP‐contaminated soil.

show abstract

“…Fibers, microbeads, polyamides were majorly detected in a study conducted in vegetable farms [12]. Soils with different characteristics and type accompanied with higher exposure time to inorganic fertilizers collectively determine the effect of MPs on the soil [13]. Different types of soil and cropping patterns affect the role of MPs in changing pH or microbiota of the soil.…”

Section: Plastic Mulching As An Evident Microplastic Sourcementioning

confidence: 99%

“…Soil MPs have major effect on the soil pH accompanied by increment in plant and human pathogens in the soil [13]. MPs profoundly deteriorate the soil heath gradually.…”

Section: Potential Effects On Soil Texture and Propertiesmentioning

confidence: 99%

Microplastics accumulation in agricultural soil: Evidence for the presence, potential effects, extraction, and current bioremediation approaches

Yadav¹,

Dhanger²,

Sharma³

2022

J App Biol biotech

View full text Add to dashboard Cite

Decades ago, microplastic presence was corroborated in aquatic ecosystem, but revelations from current studies indicate microplastics (MPs) as ubiquitous environmental concern and demonstrate our plasticized life, because of microplastic existent in food, air, water, and soil. Existence of MPs in terrestrial ecosystem is long recognized now and additionally, all the evidence that has been found for microplastic entering the farm soils indicated that they are gradually accumulating in the agricultural soil. While previous studies focused extensively on marine systems, the increasing toxicity of MPs in agricultural cultivated soils and the aspects of MPs being accumulated causing bio-toxification are being looked upon presently. They potentially damage the yield of crop plants making their roots unable to uptake water and nutrients from the soil by accumulating near the roots. MPs have already invaded the terrestrial food chain and they have been detected in excreta of livestock animals along with earthworms and crop plants. MPs are abundant in farm soil that has interacted with sewage-sludge, plastic mulching sheets, organic fertilizers, and vermicompost for a long duration. This review focuses on current evidence of microplastic accumulation in farm soil, thereby enlightening the potential damages to crop plants, soil properties, soil microbes while ultimately reaching humans via the food chain. It also covers the recent advances for soil microplastic extraction, treatment, and possible bioremediation strategies.

show abstract

Long-Term Fertilization History Alters Effects of Microplastics on Soil Properties, Microbial Communities, and Functions in Diverse Farmland Ecosystem

Cited by 177 publications

References 70 publications

Microplastics reduce soil microbial network complexity and ecological deterministic selection

Microplastics reduce soil microbial network complexity and ecological deterministic selection

Combined effect of biochar and soil moisture on soil chemical properties and microbial community composition in microplastic‐contaminated agricultural soil

Microplastics accumulation in agricultural soil: Evidence for the presence, potential effects, extraction, and current bioremediation approaches

Contact Info

Product

Resources

About