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Editorial

Special Issue on “Soil and Sustainable Development: Challenges and Solutions”

1
Department of Plant Biology and Soil Science, Faculty of Sciences, Campus University Ourense, University of Vigo, 32004 Ourense, Spain
2
GreenUPorto—Sustainable Agrifood Production Research Center/INOV4AGRO, Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
3
Department of Biology & CESAM, Campus Universitário de Santiago, University of Aveiro, 3810-193 Aveiro, Portugal
*
Author to whom correspondence should be addressed.
Submission received: 5 May 2022 / Accepted: 6 May 2022 / Published: 14 May 2022
(This article belongs to the Special Issue Soil and Sustainable Development: Challenges and Solutions)

1. Introduction and Papers Published in This Special Issue

Food production is increasing year by year, with modern agriculture occupying high-fertility soils. These soils are under significant pressure from intensive cultivation, making it important to implement practices that can support the sustainability and resilience of agroecosystems. Many of these soils receive amendments that can significantly increase the concentration of different pollutants, such as metals [1,2], whose residues may appear in certain produce and generate a public health problem [3]. In recent decades, the scientific community has awaked to the problem of new contaminants called emerging contaminants, such as antibiotics, which mainly reach detectable and potentially hazardous concentrations in soils due to the application of organic amendments and slurry [4,5]. The presence of these antibiotics in soils can not only generate soil and water contamination problems [6,7,8] but also generate the emergence of resistant microorganisms [9,10]. In this sense, decontamination techniques were developed to solve the problems that can be generated by the increase in the concentration of both metals and emerging contaminants, as well as other techniques that aim to improve crop yields. Within this framework is this Special Issue entitled “Soil and Sustainable Development: Challenges and Solutions”, where two important aspects are taken into account:
  • On the one hand, compost can be used as fertilizer to favor crop development, a topic covered by manuscripts such as “Evaluation of the Potential of Agro-Industrial Waste-Based Composts to Control Botrytis Gray Mold and Soilborne Fungal Diseases in Lettuce” [11], “Long-term effects of calcium-based liming materials on soil fertility sustainability and rye yield as indicators of soil quality in a typical palexerulto” [12], and “Cowpea crop response to mineral and organic fertilisation in SE Spain” [13].
The most relevant results indicate that some compost can inhibit the growth of determined fungi, and this can result in more economic and environmental benefits due to a reduction in the use of fungicides. On the other hand, applying liming agents and organic fertilizers clearly improves rye production and thus improves the doses of liming agents applied to the soil, with consequent benefits for both the environment and farmers.
2.
On the other hand, there are contamination studies of metals (“Influence of Physicochemical Properties and Parent Material on Chromium Fractionation in Soil” [14] and “Monitoring, Diffusion and Source Speculation Model of Urban Soil Pollution” [15] as well as emerging contaminants, such as antibiotics, including the work of Conde-Cid et al. [16] “Tetracycline and Sulfonamide Antibiotics in Soils: Presence, Fate and Environmental Risks” and Rodríguez González et al. [17] “The Effect of Clarithromycin Toxicity on the Growth of Bacterial Communities in Agricultural Soils”.
The most relevant results indicate that the fractionation of metals is an important aspect to consider when carrying out contamination monitoring studies and that agriculture developed in the surroundings of cities has to take into account the contamination of soils in these urban environments and its impacts on the environment and the quality of agricultural products.
On the other hand, studies of emerging pollutants, such as antibiotics, indicate that tetracyclines are strongly adsorbed to soils, and their desorption is very low, so their mobility is also very low. Regarding the effect of antibiotics such as Clarithromycin on soil microorganisms, the results indicate that toxicity decreases with time, which may be relevant from an environmental point of view and when controlling the application of amendments and slurry to agricultural soils.

2. Future Perspectives

This is a subject that still needs a significant amount of research to advance new insights into the different behaviors of metals and emerging pollutants in soils associated with new organic fertilization practices. This is due to the great variety of possible contaminants and the different physico-chemical properties of soils, which means that the same contaminant can behave differently depending on the soil. In the future, it would also be desirable to make progress in applying environmentally friendly, cheap, and easy-to-apply techniques for the remediation of contaminated soils.

3. Conclusions

All the topics described above were deeply discussed in the Iberian Conference “Soil and Sustainable Development: Challenges and Solutions” organized by the GreenUPorto and the Faculty of Sciences of the University of Porto, with the Support of Portuguese and Spanish Soil Science Societies. This type of Special Issue caters to the wider scientific community, given that there are many disciplines (chemistry, physics, agronomy, biology, and geology, among others) that, in one way or another, can be dedicated to the study of the environment and sustainable agricultural production. These two aspects will be even more relevant in the future due to the advance in the world population and industrialization, which will keep scientists even more involved in the future.

Author Contributions

Writing—original draft preparation, D.F.-C., M.A.-E., R.P. and J.L.; writing—review and editing, D.F.-C., M.A.-E., R.P. and J.L. All authors have read and agreed to the published version of the manuscript.

Funding

D.F.-C. holds a Ramón y Cajal contract (RYC-2016–20411) financed by the Spanish Ministry of Economy, Industry and Competitiveness. GreenUporto/INOV4Agro are supported by the Portuguese Foundation for Science and Technology through strategic funds UIDB/05748/2020 and UIDP/05748/2020. CESAM is supported by Portuguese Foundation for Science and Technology (FCT) through strategic funds UIDP/50017/2020 + UIDB/50017/2020 + LA/P/0094/2020. J.L. was also funded by national funds (OE), through FCT in the scope of the framework contract foreseen in the numbers 4, 5 and 6 of the article 23, of the Decree- Law 57/2016, of August 29, changed by Law 57/2017, of July 19.

Conflicts of Interest

The authors declare no conflict of interest.

References

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  12. Olego, M.Á.; Quiroga, M.J.; Mendaña-Cuervo, C.; Cara-Jiménez, J.; López, R.; Garzón-Jimeno, E. Long-Term Effects of Calcium-Based Liming Materials on Soil Fertility Sustainability and Rye Production as Soil Quality Indicators on a Typic Palexerult. Processes 2021, 9, 1181. [Google Scholar] [CrossRef]
  13. Sánchez-Navarro, V.; Zornoza, R.; Faz, Á.; Fernández, J. Cowpea Crop Response to Mineral and Organic Fertilization in SE Spain. Processes 2021, 9, 822. [Google Scholar] [CrossRef]
  14. Campillo-Cora, C.; Rodríguez-González, L.; Arias-Estévez, M.; Fernández-Calviño, D.; Soto-Gómez, D. Influence of Physicochemical Properties and Parent Material on Chromium Fractionation in Soils. Processes 2021, 9, 1073. [Google Scholar] [CrossRef]
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Fernández-Calviño, D.; Arias-Estévez, M.; Pereira, R.; Lourenço, J. Special Issue on “Soil and Sustainable Development: Challenges and Solutions”. Processes 2022, 10, 980. https://0-doi-org.brum.beds.ac.uk/10.3390/pr10050980

AMA Style

Fernández-Calviño D, Arias-Estévez M, Pereira R, Lourenço J. Special Issue on “Soil and Sustainable Development: Challenges and Solutions”. Processes. 2022; 10(5):980. https://0-doi-org.brum.beds.ac.uk/10.3390/pr10050980

Chicago/Turabian Style

Fernández-Calviño, David, Manuel Arias-Estévez, Ruth Pereira, and Joana Lourenço. 2022. "Special Issue on “Soil and Sustainable Development: Challenges and Solutions”" Processes 10, no. 5: 980. https://0-doi-org.brum.beds.ac.uk/10.3390/pr10050980

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