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Agriculture
Special Issues
Risk Assessment and Remediation of Agricultural Soil Pollution
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Risk Assessment and Remediation of Agricultural Soil Pollution

A special issue of Agriculture (ISSN 2077-0472). This special issue belongs to the section "Agricultural Soils".

Deadline for manuscript submissions: 15 December 2024 | Viewed by 1328

Special Issue Editors

Dr. Dong-Xing Guan

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Guest Editor
College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
Interests: soil contamination and remediation; passive sampling; chemical imaging; soil-plant interaction; contaminant and nutrient bioavailability; food safety; soil health
Special Issues, Collections and Topics in MDPI journals
Dr. Yong-He Han

E-Mail Website
Guest Editor
College of Environmental and Resource Sciences, Fujian Normal University, Fuzhou 350117, China
Interests: heavy metal pollution; soil remediation; hyperaccumulating plants; rare earth elements; persistent organic matter; biodegradation; microbe-plant interaction; omics (high-throughput sequencing, metabolomics, transcriptomics, etc.)
Prof. Dr. Amauri Antônio Menegário

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Guest Editor
Environmental Studies Center (CEA), São Paulo State University (UNESP), Avenida 24-A, 1515, Rio Claro 13506-900, SP, Brazil
Interests: bioaccumulation and biomonitoring; diffusive gradients in thin-films (DGT); environmental analytical chemistry; metals and metalloids; rare earth elements (REEs); soil biogeochemistry; speciation; watershed

Special Issue Information

Dear Colleagues,

Both human activities and natural sources contribute to agricultural soil pollution, posing significant risks to productivity, food safety, and human and ecosystem health. Common pollutants include heavy metals, excess nutrients from fertilizers, rare earth elements, and emerging pollutants (e.g., persistent organic pollutants and microplastics). In order to address these challenges, it is crucial to assess the potential risks associated with soil pollution, implementing appropriate remediation practices and prioritizing health as a guiding principle. From a scientific perspective, a critical evaluation of the biochemical processes occurring within the soil–microbe–fauna–crop continuum under various scenarios, such as irrigation, fertilization, abandonment, and remediation, is necessary, utilizing cutting-edge techniques.

This Special Issue focuses on the latest research, methodologies, and technologies for assessing and mitigating the risks associated with agricultural soil pollution. It explores a wide range of remediation strategies, including bioremediation, phytoremediation, and chemical treatments, aimed at restoring contaminated soils and promoting sustainable agricultural practices. The Issue also addresses the development of risk assessment frameworks, policy implications, and the socio-economic impacts of soil pollution on farming communities. By bringing together research from diverse disciplines, this Issue aims to provide a comprehensive understanding of agricultural soil pollution, contributing to the development of effective management strategies for maintaining soil health and productivity.

Dr. Dong-Xing Guan
Dr. Yong-He Han
Prof. Dr. Amauri Antônio Menegário
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Agriculture is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • agricultural soil pollution
  • risk assessment
  • soil remediation
  • contaminants
  • food safety
  • sustainable agriculture
  • bioremediation
  • phytoremediation
  • soil health
  • environmental monitoring

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Published Papers (2 papers)

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17 pages, 2845 KiB  
Article
Sulfur Induces As Tolerance in Barley Plants
by Mar Gil-Díaz, Juan Alonso, Carolina Mancho, Pilar García-Gonzalo and M. Carmen Lobo
Agriculture 2024, 14(12), 2110; https://doi.org/10.3390/agriculture14122110 - 22 Nov 2024
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Abstract
The use of sulfur (S) in polluted soils can reduce metal(loid) toxicity and enhance phytoremediation effectiveness. Here we studied the response of barley plants to As in soil amended with sulfate or elemental sulfur throughout the growing cycle. A greenhouse experiment was carried [...] Read more.
The use of sulfur (S) in polluted soils can reduce metal(loid) toxicity and enhance phytoremediation effectiveness. Here we studied the response of barley plants to As in soil amended with sulfate or elemental sulfur throughout the growing cycle. A greenhouse experiment was carried out using 4-L pots filled with clay-loam soil spiked with 60 mg kg−1 As (Na2HAsO4·7H2O). Two chemical forms of sulfur (elemental sulfur (S0) or sulfate (CaSO4·2H2O)) were applied at a dose of 1 and 3 Mg ha−1, respectively, and two previously seeded barley plants were transplanted in each pot, using eight pots per treatment. At the end of the growing cycle, the biomass, nutrients, and metal(loid) content, as well as several physiological and biochemical parameters of the plants were analyzed. Moreover, the effect of the treatments on soil characteristics was also evaluated, including soil pore water. The treatment with sulfur promoted the growth of barley plants through their vegetative cycle, enhancing photosynthesis, although biomass did not significantly increase. Both sources of S promoted the accumulation of As in the root, thereby limiting its translocation to the aerial part of the plant, sulfate being more effective (an increase of 300%) than elemental S (an increase of 82%). The addition of S decreased soil pH. Furthermore, both treatments, but particularly sulfate, increased soluble sulfate and stimulated soil biological properties. In conclusion, the application of sulfate to As-polluted soil can enhance As phytostabilization by barley plants while simultaneously improving the biological properties of the soil. Full article
(This article belongs to the Special Issue Risk Assessment and Remediation of Agricultural Soil Pollution)
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15 pages, 2286 KiB  
Article
The Degradation of Polyethylene by Trichoderma and Its Impact on Soil Organic Carbon
by Lixia Zhu, Yaqin Chen, Wenke Ni, Jiaxuan Zeng, Xin Li, Chunhong Hu and Lili Li
Agriculture 2024, 14(10), 1821; https://doi.org/10.3390/agriculture14101821 - 16 Oct 2024
Viewed by 585
Abstract
Polyethylene mulching film, which is widely utilized in arid and semi-arid agriculture, leaves residual pollution. A novel approach to addressing this issue is microbial degradation. To screen the strains that degrade polyethylene efficiently and clarify the effect of degrading strains on the turnover [...] Read more.
Polyethylene mulching film, which is widely utilized in arid and semi-arid agriculture, leaves residual pollution. A novel approach to addressing this issue is microbial degradation. To screen the strains that degrade polyethylene efficiently and clarify the effect of degrading strains on the turnover of soil organic carbon, a polyethylene-degrading fungus PF2, identified as Trichoderma asperellum, was isolated from long-time polyethylene-covered soil. Strain PF2 induced surface damage and ether bonds, ketone groups and other active functional groups in polyethylene, with 4.15% weight loss after 30 days, where laccase plays a key role in the degradation of polyethylene. When applied to soil, the Trichoderma-to-soil weight ratios were the following: B1: 1:100; B2: 1:200; B3: 1:300 and B4: 1:400. Trichoderma asperellum significantly increased the cumulative CO2 mineralization and soil organic carbon mineralization in the B1 and B2 treatments compared with the control (B0). The treatments B1, B3 and B4 increased the stable organic carbon content in soil. An increase in the soil organic carbon content was observed with the application of Trichoderma asperellum, ranging from 27.87% to 58.38%. A positive correlation between CO2 emissions and soil organic carbon was observed, with the soil carbon pool management index (CPMI) being most correlated with active organic carbon. Trichoderma treatments improved the CPMI, with B3 showing the most favorable carbon retention value. Thus, Trichoderma asperellum not only degrades polyethylene but also contributes to carbon sequestration and soil fertility when applied appropriately. Full article
(This article belongs to the Special Issue Risk Assessment and Remediation of Agricultural Soil Pollution)
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