Impact of plastic film mulching on microplastic in farmland soils in Guangdong province, China

Long, Bibo; Li, Fayong; Wang, Ke; Huang, Yaozhu; Yang, Youjun; Xie, Dong

doi:10.1016/j.heliyon.2023.e16587

Cited by 24 publications

(4 citation statements)

References 40 publications

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“…Only one study reported results of the impact of MaP on WSA under field conditions, which could differ at a laboratory scale. This highlights the demand for field studies as the prevalence of secondary MaP and MiP is directly associated with plastic mulch film residues in arable land (Koskei et al 2021, Khalid et al 2023, Long et al 2023. From 5%-15% variability of WSA exists in natural soil conditions (Ma et al 2022), which is cyclical due to temporal variability within the same soil (Dimoyiannis 2009).…”

Section: Wsasmentioning

confidence: 99%

“…The variation in the abundance and morphological traits and chemical composition of microplastic (MiP, size <5000 µm) in soils increases the complexity of the problem (Yang et al 2021). Moreover, plastic consumption increased by 200% in livestock production systems and 475% in crop production systems from 2019 to 2021, greatly increasing the risk of plastic pollution, as MiP concentration in the soil is correlated with agricultural-livestock practices (UNEP 2021, Long et al 2023).…”

Section: Introductionmentioning

confidence: 99%

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Macro- and micro-plastics change soil physical properties: a systematic review

Maqbool,

Soriano,

Gómez

2023

Environ. Res. Lett.

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Plastic pollution in terrestrial environments is a global issue due to its adverse effects on soil health, with negative impacts on ecosystem services and food production. However, the enormous heterogeneity of both plastic and soil characteristics complicate the assessment of the impact and overall trends in plastic-induced changes in soil properties beyond experimental conditions. In this work, we have carried out a systematic and in-depth review of the existing literature on the impact of plastics on soil physical properties. To this end, we have quantified the effects of macro- (MaP, >5000 μm) and micro-plastics (MiP, <5000 μm) on soil bulk density, soil porosity, water-stable aggregates (WSAs), saturated hydraulic conductivity, and soil moisture at field capacity (FC), based on four characteristics of plastics: polymer types, shapes and sizes of plastic particles, and plastic concentrations in soil. Results showed that MaPs and MiPs significantly modified the values of the analyzed soil physical properties compared to the control without plastic in over 50% of the experimental dataset, albeit with a large variability, from a reduction to an increase in values, depending on the specific experimental conditions and the soil physical property. Depending on the plastic concentration, soil bulk density and porosity decreased moderately (4%–6%) with MiP and MaP. MiP reduced WSA by an average of 20%, ranging from a 40% decrease to a 20% increase depending on the shapes and concentration of MiP. Saturated hydraulic conductivity changed depending on the polymer types, shapes, and concentrations of MaP and MiP, varying from a 70% decrease to a 40% increase. Soil water content at FC varied depending on the soil texture, and concentration and sizes distribution of conventional MiP, decreasing from 10% to 65%. However, biodegradable plastic increased soil water content at FC. The few studies available provide evidence that not enough attention is being paid to soil physical properties influenced by plastic input. It is recommended to consider the wide range of characteristics of MaP and MiP and their effects on soil physical properties in future studies, for an advance understanding of the impact of MiP and MaP on soil health in the medium-long term under different environmental conditions.

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Section: Wsasmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Macro- and micro-plastics change soil physical properties: a systematic review

Maqbool,

Soriano,

Gómez

2023

Environ. Res. Lett.

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“…However, due to the presence of various other causes of pollution (Figure 1). However, due to the presence of various other causes of pollution, the impact of MPs with considerable human activity remains unclear [11]. The presence of microplastic contamination in soil is feared to have a further impact on soil performance in agriculture.…”

Section: Introductionmentioning

confidence: 99%

Correlation of contamination/pollution from microplastics with physical properties of inceptisols

Rezki,

Maulana,

Prasetyo

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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Microplastic contamination of soil is increasingly impacting soil performance in agriculture. This research studied the relationship between microplastic contamination with the physical properties of Inceptisols at different slopes in the horticultural production center of Banuhampu, Agam, West Sumatra. The determination of soil samples was carried out by purposive random sampling with a quantitative survey method. Sample testing using randomized completely block design (RCBD) with five treatments and three replications: 25-45% in forests and 0-8%, 8-15%, 15-25%, and 25-45% in fields at a depth of 0-20 cm. Characteristics of physical properties of Inceptisols contaminated with microplastics have a moisture content of 31.69%, a bulk density of 0.78 g cm−3, a total pore space of 70.67% (without considering the importance of soil organic matter), and a soil texture class of sandy loam (68.19% sand, 19.55% silt, and 12.26% clay). The value of microplastic concentration in Inceptisols was 438.33 particles kg−1. The slope does not significantly affect the physical properties of Inceptisols contaminated with microplastics. The effect of microplastic contamination has a significant relationship with the physical properties of Inceptisols, namely clay with a value of r = 0.650** and a linear equation: Microplastic = 15.474 (Clay) + 248.57; R2 = 0.4228.

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“…Currently, plastic film mulching and straw mulching are the two most extensively studied surface mulching measures, showcasing some progress [24,25]. However, these methods do come with drawbacks, such as soil pollution and increased pest and disease issues [26,27]. To address these concerns, branch mulching has emerged as a viable alternative to straw mulching, especially for orchards and ecological economic forests.…”

Section: Introductionmentioning

confidence: 99%

Impact of Mulching on Soil Moisture and Sap Flow Characteristics of Jujube Trees

He,

Qiu,

Liu

et al. 2023

Agronomy

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The main purpose of this study was to assess the influence of grass planting and jujube branch mulching on soil moisture levels and jujube tree transpiration rates, with the ultimate goal of improving jujube tree production in rain-fed orchards. The study encompassed four treatments: jujube branch mulching (JBM), jujube branch mulching with white clover planting (JBM + WCP), white clover planting (WCP), and clean cultivation (CC). During a two-year experiment, it was observed that the JBM treatment exhibited the highest capacity for moisture conservation. Specifically, it resulted in an average increase of 2.69% (in 2013) and 2.23% (in 2014) in soil moisture content compared with the CC treatment. The application of statistical analysis revealed significant differences (p < 0.05) between JBM and JBM + WCP, as well as highly significant differences (p < 0.01) between JBM and WCP in the year 2013. In 2014, JBM exhibited significant differences (p < 0.01) from both JBM + WCP and WCP. Between April and August, JBM exhibited the highest soil moisture content, followed by CC, with WCP showing the lowest levels. From September to October, JBM retained its status as the treatment with the highest soil moisture content, JBM + WCP ranked second, and CC experienced a decline and recorded the lowest soil moisture content. Under sunny conditions, all treatments showed a broad peak curve in the daily variation of sap flow velocity. In cloudy weather, a multi-peak wave-like curve was observed with similar trends across treatments. Between April and August, the monthly average sap flow velocity of JBM ranked the highest, followed by CC, while WCP showed the lowest velocity. During the period of September to October, JBM maintained its lead in sap flow velocity, while JBM + WCP rose to the second position, and CC’s sap flow velocity dropped to the lowest level. JBM and WCP treatments showed significant differences (p < 0.01), and in 2014, JBM also had significant differences (p < 0.05) compared with JBM + WCP. The sap flow velocity was positively correlated with air temperature, vapor pressure deficit, wind velocity, photosynthetically active radiation, and soil temperature. Photosynthetically active radiation was identified as the main driving factor influencing jujube tree transpiration. In conclusion, the findings of this study demonstrate the effectiveness of using pruned jujube branches for coverage in rain-fed jujube orchards. This approach not only conserves mulching materials and diminishes the expenses associated with transporting pruned jujube tree branches away from the jujube orchard but also achieves multiple objectives, including increasing soil moisture, promoting jujube tree transpiration, and enhancing soil water utilization. These results have significant implications for the efficient utilization of rainwater resources in rain-fed jujube orchards and provide valuable insights for practical applications in orchard management.

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Impact of plastic film mulching on microplastic in farmland soils in Guangdong province, China

Cited by 24 publications

References 40 publications

Macro- and micro-plastics change soil physical properties: a systematic review

Macro- and micro-plastics change soil physical properties: a systematic review

Correlation of contamination/pollution from microplastics with physical properties of inceptisols

Impact of Mulching on Soil Moisture and Sap Flow Characteristics of Jujube Trees

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