Effect of biochar on microbial communities of a trace element contaminated soil
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/28487 |
Resumo: | High concentrations of trace elements in soils can negatively affect soil microbiological communities and thus reduces their diversity and functionality. In addition, several recent studies have revealed that biochar can reduce bioavailability of trace elements in contaminated soils. The aim of this work was to evaluate the effects of biochar application on the soil microbial community for trace elements contaminated soils. For that purpose, Typic Xerofluvent soils affected by the toxic spill occurred in Aznalcóllar (SW Spain) on 1998 with two levels of contamination (moderately and highly polluted) were used. Biochar of rice husk (RHB) and olive pit (OPB) were produced in a continuously feed reactor at 500 °C and 12 min residence time and applied into 1 m2 plots on the contaminated soils at a rate of 8 ton ha-1. After determining the effects on soil properties (pH, water holding capacity, total carbon content), the effects on enzymatic activities (β-glucosidase and dehydrogenase), soil respiration (6400-09 Soil CO2 Flux Chamber LI-COR) and microbial communities (next generation sequencing-based 16S rRNA gene analysis) were tested at 1, 6 and 12 months after biochar application. Finally, FE-SEM-EDS were performed on handpicked biochar particles. The results showed that seasonal effects modified enzymatic activities. After 6 months, differences between control and biochar amended soils were found. However, these differences decreased drastically after 1 year. Soil respiration was greater in moderatly than in highly pollutued areas at the beginning of the experiment and was reduced with time. Microbial community was different both between the two levels of contamination as well as biochar amended and non-amended soils. FE-SEM images showed the presence of filamentous microbial structures on biochar surfaces, Ca-S particles (gypsum) in OPB and high content of Si in RHB. |
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Effect of biochar on microbial communities of a trace element contaminated soilHigh concentrations of trace elements in soils can negatively affect soil microbiological communities and thus reduces their diversity and functionality. In addition, several recent studies have revealed that biochar can reduce bioavailability of trace elements in contaminated soils. The aim of this work was to evaluate the effects of biochar application on the soil microbial community for trace elements contaminated soils. For that purpose, Typic Xerofluvent soils affected by the toxic spill occurred in Aznalcóllar (SW Spain) on 1998 with two levels of contamination (moderately and highly polluted) were used. Biochar of rice husk (RHB) and olive pit (OPB) were produced in a continuously feed reactor at 500 °C and 12 min residence time and applied into 1 m2 plots on the contaminated soils at a rate of 8 ton ha-1. After determining the effects on soil properties (pH, water holding capacity, total carbon content), the effects on enzymatic activities (β-glucosidase and dehydrogenase), soil respiration (6400-09 Soil CO2 Flux Chamber LI-COR) and microbial communities (next generation sequencing-based 16S rRNA gene analysis) were tested at 1, 6 and 12 months after biochar application. Finally, FE-SEM-EDS were performed on handpicked biochar particles. The results showed that seasonal effects modified enzymatic activities. After 6 months, differences between control and biochar amended soils were found. However, these differences decreased drastically after 1 year. Soil respiration was greater in moderatly than in highly pollutued areas at the beginning of the experiment and was reduced with time. Microbial community was different both between the two levels of contamination as well as biochar amended and non-amended soils. FE-SEM images showed the presence of filamentous microbial structures on biochar surfaces, Ca-S particles (gypsum) in OPB and high content of Si in RHB.XXXII Reunión nacional de suelos (RENS 2019)2020-12-03T15:31:12Z2020-12-032019-09-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjecthttp://hdl.handle.net/10174/28487http://hdl.handle.net/10174/28487engCampos P, Miller AZ, López R, Hagemann N, Knicker H, de la Rosa JM (2019). Effect of biochar on microbial communities of a trace element contaminated soil. XXXII Reunión nacional de suelos (RENS 2019), 10-13 September, Sevilla, Spain.simnaonaondanamiller@uevora.ptndndndndCampos, P.Miller, A.Z.López, R.Hagemann, N.Knicker, H.de la Rosa, J.M.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-03T19:24:45Zoai:dspace.uevora.pt:10174/28487Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:18:21.234450Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Effect of biochar on microbial communities of a trace element contaminated soil |
title |
Effect of biochar on microbial communities of a trace element contaminated soil |
spellingShingle |
Effect of biochar on microbial communities of a trace element contaminated soil Campos, P. |
title_short |
Effect of biochar on microbial communities of a trace element contaminated soil |
title_full |
Effect of biochar on microbial communities of a trace element contaminated soil |
title_fullStr |
Effect of biochar on microbial communities of a trace element contaminated soil |
title_full_unstemmed |
Effect of biochar on microbial communities of a trace element contaminated soil |
title_sort |
Effect of biochar on microbial communities of a trace element contaminated soil |
author |
Campos, P. |
author_facet |
Campos, P. Miller, A.Z. López, R. Hagemann, N. Knicker, H. de la Rosa, J.M. |
author_role |
author |
author2 |
Miller, A.Z. López, R. Hagemann, N. Knicker, H. de la Rosa, J.M. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Campos, P. Miller, A.Z. López, R. Hagemann, N. Knicker, H. de la Rosa, J.M. |
description |
High concentrations of trace elements in soils can negatively affect soil microbiological communities and thus reduces their diversity and functionality. In addition, several recent studies have revealed that biochar can reduce bioavailability of trace elements in contaminated soils. The aim of this work was to evaluate the effects of biochar application on the soil microbial community for trace elements contaminated soils. For that purpose, Typic Xerofluvent soils affected by the toxic spill occurred in Aznalcóllar (SW Spain) on 1998 with two levels of contamination (moderately and highly polluted) were used. Biochar of rice husk (RHB) and olive pit (OPB) were produced in a continuously feed reactor at 500 °C and 12 min residence time and applied into 1 m2 plots on the contaminated soils at a rate of 8 ton ha-1. After determining the effects on soil properties (pH, water holding capacity, total carbon content), the effects on enzymatic activities (β-glucosidase and dehydrogenase), soil respiration (6400-09 Soil CO2 Flux Chamber LI-COR) and microbial communities (next generation sequencing-based 16S rRNA gene analysis) were tested at 1, 6 and 12 months after biochar application. Finally, FE-SEM-EDS were performed on handpicked biochar particles. The results showed that seasonal effects modified enzymatic activities. After 6 months, differences between control and biochar amended soils were found. However, these differences decreased drastically after 1 year. Soil respiration was greater in moderatly than in highly pollutued areas at the beginning of the experiment and was reduced with time. Microbial community was different both between the two levels of contamination as well as biochar amended and non-amended soils. FE-SEM images showed the presence of filamentous microbial structures on biochar surfaces, Ca-S particles (gypsum) in OPB and high content of Si in RHB. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-09-01T00:00:00Z 2020-12-03T15:31:12Z 2020-12-03 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10174/28487 http://hdl.handle.net/10174/28487 |
url |
http://hdl.handle.net/10174/28487 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Campos P, Miller AZ, López R, Hagemann N, Knicker H, de la Rosa JM (2019). Effect of biochar on microbial communities of a trace element contaminated soil. XXXII Reunión nacional de suelos (RENS 2019), 10-13 September, Sevilla, Spain. sim nao nao nd anamiller@uevora.pt nd nd nd nd |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
XXXII Reunión nacional de suelos (RENS 2019) |
publisher.none.fl_str_mv |
XXXII Reunión nacional de suelos (RENS 2019) |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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