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Response of soil bacterial populations to application of biosolids under short-term flooding
Biosolids are applied to agricultural land as a soil conditioner and source of crop nutrients. However, there is concern that bacteria from biosolids may become established in soils, particularly if that soil becomes water-logged. This study examined the microbial community of arable soils cultivate...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Berlin Heidelberg
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10257635/ https://www.ncbi.nlm.nih.gov/pubmed/37184786 http://dx.doi.org/10.1007/s11356-023-27424-0 |
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author | Humphries, Nicholas H. Thornton, Steven F. Chen, Xiaohui Bray, Andrew W. Stewart, Douglas I. |
author_facet | Humphries, Nicholas H. Thornton, Steven F. Chen, Xiaohui Bray, Andrew W. Stewart, Douglas I. |
author_sort | Humphries, Nicholas H. |
collection | PubMed |
description | Biosolids are applied to agricultural land as a soil conditioner and source of crop nutrients. However, there is concern that bacteria from biosolids may become established in soils, particularly if that soil becomes water-logged. This study examined the microbial community of arable soils cultivated with barley under different applications of biosolids (0, 24t/ha, 48t/ha) in laboratory mesocosms which simulated a 10-day flood. Nutrients (P and N) and organic matter in the soil increased with application rate, but plant growth was not affected by biosolid application. The biosolids contained 10× more genetic material than the soil, with much lower bacterial diversity, yet application did not significantly change the taxonomy of the soil microbiome, with minor changes related to increased nutrients and SOM. Anaerobic conditions developed rapidly during flooding, causing shifts in the native soil microbiome. Some bacterial taxa that were highly abundant in biosolids had slightly increased relative abundance in amended soils during the flood. After flooding, soil bacterial populations returned to their pre-flood profiles, implying that the native microbial community is resilient to transient changes. The short-term changes in the microbiome of biosolid-amended soils during flooding do not appear to increase the environmental risk posed by biosolid application. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s11356-023-27424-0. |
format | Online Article Text |
id | pubmed-10257635 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Springer Berlin Heidelberg |
record_format | MEDLINE/PubMed |
spelling | pubmed-102576352023-06-12 Response of soil bacterial populations to application of biosolids under short-term flooding Humphries, Nicholas H. Thornton, Steven F. Chen, Xiaohui Bray, Andrew W. Stewart, Douglas I. Environ Sci Pollut Res Int Research Article Biosolids are applied to agricultural land as a soil conditioner and source of crop nutrients. However, there is concern that bacteria from biosolids may become established in soils, particularly if that soil becomes water-logged. This study examined the microbial community of arable soils cultivated with barley under different applications of biosolids (0, 24t/ha, 48t/ha) in laboratory mesocosms which simulated a 10-day flood. Nutrients (P and N) and organic matter in the soil increased with application rate, but plant growth was not affected by biosolid application. The biosolids contained 10× more genetic material than the soil, with much lower bacterial diversity, yet application did not significantly change the taxonomy of the soil microbiome, with minor changes related to increased nutrients and SOM. Anaerobic conditions developed rapidly during flooding, causing shifts in the native soil microbiome. Some bacterial taxa that were highly abundant in biosolids had slightly increased relative abundance in amended soils during the flood. After flooding, soil bacterial populations returned to their pre-flood profiles, implying that the native microbial community is resilient to transient changes. The short-term changes in the microbiome of biosolid-amended soils during flooding do not appear to increase the environmental risk posed by biosolid application. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s11356-023-27424-0. Springer Berlin Heidelberg 2023-05-15 2023 /pmc/articles/PMC10257635/ /pubmed/37184786 http://dx.doi.org/10.1007/s11356-023-27424-0 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Research Article Humphries, Nicholas H. Thornton, Steven F. Chen, Xiaohui Bray, Andrew W. Stewart, Douglas I. Response of soil bacterial populations to application of biosolids under short-term flooding |
title | Response of soil bacterial populations to application of biosolids under short-term flooding |
title_full | Response of soil bacterial populations to application of biosolids under short-term flooding |
title_fullStr | Response of soil bacterial populations to application of biosolids under short-term flooding |
title_full_unstemmed | Response of soil bacterial populations to application of biosolids under short-term flooding |
title_short | Response of soil bacterial populations to application of biosolids under short-term flooding |
title_sort | response of soil bacterial populations to application of biosolids under short-term flooding |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10257635/ https://www.ncbi.nlm.nih.gov/pubmed/37184786 http://dx.doi.org/10.1007/s11356-023-27424-0 |
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