Impact of plant species and intense nutrient loading on CH4 and N2O fluxes from small inland waters: An experimental approach
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.aquabot.2022.103527 http://hdl.handle.net/11449/240085 |
Resumo: | Severe eutrophication threatens freshwater systems around the world. The application of aquatic buffer zones with plants, for example around agricultural lands, can increase nutrient retention and thereby reduce nutrient loading to downstream systems. However, not much is known about greenhouse gas (GHG) emissions from these buffer zones and how they are affected by nutrient loading and the dominant plant species. Here, using a full-factorial mesocosm experiment with different nutrient loadings (20–4000 mg N and 1–200 mg P m-2 d-1) and plant types (e.g. submerged and free-floating species), we show that emissions of methane (CH4) and nitrous oxide (N2O) were strongly related to nutrient loading, leading to total greenhouse gas emissions up to 177.84 g CO2-eq m-2 d-1. Overall, total GHG emission (as the sum of CH4 ebullition and diffusive water-atmosphere emission of CH4 and N2O in CO2 equivalents) was not significantly affected by plant species. CH4 ebullition was significantly lower in experimental units with submerged plants that rooted in the sediment as compared to non-rooted plants, possibly related to rhizosphere CH4 oxidation fueled by radial oxygen loss or plant-mediated transport that limits the build-up of gaseous CH4 in the sediment. We conclude that aquatic buffer zones that experience intense nutrient loading (e.g. due to release of sewage or agricultural fertilizer) can be GHG emission hotspots and recommend careful consideration of environmental conditions (e.g. the organic carbon content), expected nutrient loadings, and alternatives, prior to their construction. |
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Impact of plant species and intense nutrient loading on CH4 and N2O fluxes from small inland waters: An experimental approachEutrophicationFloating macrophytesFreshwaterGreenhouse gasesNitrous oxideSubmerged macrophytesSevere eutrophication threatens freshwater systems around the world. The application of aquatic buffer zones with plants, for example around agricultural lands, can increase nutrient retention and thereby reduce nutrient loading to downstream systems. However, not much is known about greenhouse gas (GHG) emissions from these buffer zones and how they are affected by nutrient loading and the dominant plant species. Here, using a full-factorial mesocosm experiment with different nutrient loadings (20–4000 mg N and 1–200 mg P m-2 d-1) and plant types (e.g. submerged and free-floating species), we show that emissions of methane (CH4) and nitrous oxide (N2O) were strongly related to nutrient loading, leading to total greenhouse gas emissions up to 177.84 g CO2-eq m-2 d-1. Overall, total GHG emission (as the sum of CH4 ebullition and diffusive water-atmosphere emission of CH4 and N2O in CO2 equivalents) was not significantly affected by plant species. CH4 ebullition was significantly lower in experimental units with submerged plants that rooted in the sediment as compared to non-rooted plants, possibly related to rhizosphere CH4 oxidation fueled by radial oxygen loss or plant-mediated transport that limits the build-up of gaseous CH4 in the sediment. We conclude that aquatic buffer zones that experience intense nutrient loading (e.g. due to release of sewage or agricultural fertilizer) can be GHG emission hotspots and recommend careful consideration of environmental conditions (e.g. the organic carbon content), expected nutrient loadings, and alternatives, prior to their construction.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Nederlandse Organisatie voor Wetenschappelijk OnderzoekDepartment of Aquatic Ecology and Environmental Biology Radboud Institute for Biological and Environmental Sciences Radboud University, P.O. Box 9010Department of Aquatic Ecology Netherlands Institute of Ecology (NIOO-KNAW), P.O. Box 50Institute of Biosciences (Botucatu) São Paulo State UniversityDepartment of Environmental Science Radboud Institute for Biological and Environmental Sciences Radboud University, P.O. Box 9010Institute of Biosciences (Botucatu) São Paulo State UniversityCAPES: 13607/13–8CNPq: 193/2014Nederlandse Organisatie voor Wetenschappelijk Onderzoek: 86312012Radboud UniversityNetherlands Institute of Ecology (NIOO-KNAW)Universidade Estadual Paulista (UNESP)Aben, Ralf C.H.Oliveira Junior, Ernandes S.Carlos, Anderson R. [UNESP]van Bergen, Tamara J.H.M.Lamers, Leon P.M.Kosten, Sarian2023-03-01T20:00:49Z2023-03-01T20:00:49Z2022-08-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.aquabot.2022.103527Aquatic Botany, v. 180.0304-3770http://hdl.handle.net/11449/24008510.1016/j.aquabot.2022.1035272-s2.0-85130396166Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAquatic Botanyinfo:eu-repo/semantics/openAccess2023-03-01T20:00:50Zoai:repositorio.unesp.br:11449/240085Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:17:29.830718Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Impact of plant species and intense nutrient loading on CH4 and N2O fluxes from small inland waters: An experimental approach |
title |
Impact of plant species and intense nutrient loading on CH4 and N2O fluxes from small inland waters: An experimental approach |
spellingShingle |
Impact of plant species and intense nutrient loading on CH4 and N2O fluxes from small inland waters: An experimental approach Aben, Ralf C.H. Eutrophication Floating macrophytes Freshwater Greenhouse gases Nitrous oxide Submerged macrophytes |
title_short |
Impact of plant species and intense nutrient loading on CH4 and N2O fluxes from small inland waters: An experimental approach |
title_full |
Impact of plant species and intense nutrient loading on CH4 and N2O fluxes from small inland waters: An experimental approach |
title_fullStr |
Impact of plant species and intense nutrient loading on CH4 and N2O fluxes from small inland waters: An experimental approach |
title_full_unstemmed |
Impact of plant species and intense nutrient loading on CH4 and N2O fluxes from small inland waters: An experimental approach |
title_sort |
Impact of plant species and intense nutrient loading on CH4 and N2O fluxes from small inland waters: An experimental approach |
author |
Aben, Ralf C.H. |
author_facet |
Aben, Ralf C.H. Oliveira Junior, Ernandes S. Carlos, Anderson R. [UNESP] van Bergen, Tamara J.H.M. Lamers, Leon P.M. Kosten, Sarian |
author_role |
author |
author2 |
Oliveira Junior, Ernandes S. Carlos, Anderson R. [UNESP] van Bergen, Tamara J.H.M. Lamers, Leon P.M. Kosten, Sarian |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Radboud University Netherlands Institute of Ecology (NIOO-KNAW) Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Aben, Ralf C.H. Oliveira Junior, Ernandes S. Carlos, Anderson R. [UNESP] van Bergen, Tamara J.H.M. Lamers, Leon P.M. Kosten, Sarian |
dc.subject.por.fl_str_mv |
Eutrophication Floating macrophytes Freshwater Greenhouse gases Nitrous oxide Submerged macrophytes |
topic |
Eutrophication Floating macrophytes Freshwater Greenhouse gases Nitrous oxide Submerged macrophytes |
description |
Severe eutrophication threatens freshwater systems around the world. The application of aquatic buffer zones with plants, for example around agricultural lands, can increase nutrient retention and thereby reduce nutrient loading to downstream systems. However, not much is known about greenhouse gas (GHG) emissions from these buffer zones and how they are affected by nutrient loading and the dominant plant species. Here, using a full-factorial mesocosm experiment with different nutrient loadings (20–4000 mg N and 1–200 mg P m-2 d-1) and plant types (e.g. submerged and free-floating species), we show that emissions of methane (CH4) and nitrous oxide (N2O) were strongly related to nutrient loading, leading to total greenhouse gas emissions up to 177.84 g CO2-eq m-2 d-1. Overall, total GHG emission (as the sum of CH4 ebullition and diffusive water-atmosphere emission of CH4 and N2O in CO2 equivalents) was not significantly affected by plant species. CH4 ebullition was significantly lower in experimental units with submerged plants that rooted in the sediment as compared to non-rooted plants, possibly related to rhizosphere CH4 oxidation fueled by radial oxygen loss or plant-mediated transport that limits the build-up of gaseous CH4 in the sediment. We conclude that aquatic buffer zones that experience intense nutrient loading (e.g. due to release of sewage or agricultural fertilizer) can be GHG emission hotspots and recommend careful consideration of environmental conditions (e.g. the organic carbon content), expected nutrient loadings, and alternatives, prior to their construction. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-08-01 2023-03-01T20:00:49Z 2023-03-01T20:00:49Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.aquabot.2022.103527 Aquatic Botany, v. 180. 0304-3770 http://hdl.handle.net/11449/240085 10.1016/j.aquabot.2022.103527 2-s2.0-85130396166 |
url |
http://dx.doi.org/10.1016/j.aquabot.2022.103527 http://hdl.handle.net/11449/240085 |
identifier_str_mv |
Aquatic Botany, v. 180. 0304-3770 10.1016/j.aquabot.2022.103527 2-s2.0-85130396166 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Aquatic Botany |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129306021330944 |