Phosphorus transfer at a small catchment in southeastern Brazil: distributed modelling in different land use scenarios

Detalhes bibliográficos
Autor(a) principal: Bispo,Diêgo Faustolo Alves
Data de Publicação: 2017
Outros Autores: Silva,Marx Leandro Naves, Marques,João José Granate de Sá e Melo, Bechmann,Marianne, Batista,Pedro Velloso Gomes, Curi,Nilton
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Ciência e Agrotecnologia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000500565
Resumo: ABSTRACT Identifying and ranking nutrient loss risk areas are important steps towards integrated catchment management. This study aimed to apply the P index model at the Posses catchment, south of the state of Minas Gerais, Brazil. We applied the P index for the current land use at the Posses catchment and for two hypothetical scenarios: scenario 1, in which P fertilizer was applied to all land uses, except for native forests; and scenario 2, which considered the use of P fertilizer as in scenario 1, and that the Environmental Protection Areas referring to the riparian forests and springs were totally restored. Considering current land use, almost the whole catchment area (91.4%) displayed a low P loss risk. The highest P index was associated to croplands and eucalyptus plantations. Regarding scenario 1, areas under pasture fell into the low (15.1%), medium (45.5%), high (27.1%) and very high (12.3%) P index categories. Environmental Protection Areas on scenario 2 decreased the P loss risk from the scenario 1 in 37.6%. Hence, the model outputs indicate that the reforestation of buffer zones can decrease P loss risk in the case increasing use of P fertilizer. The P index model is a potential support tool to promote judicious use of fertilizers and conservation practices at the Posses catchment.
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spelling Phosphorus transfer at a small catchment in southeastern Brazil: distributed modelling in different land use scenariosP indexnutrient losswater erosionland use managementenvironmental services.ABSTRACT Identifying and ranking nutrient loss risk areas are important steps towards integrated catchment management. This study aimed to apply the P index model at the Posses catchment, south of the state of Minas Gerais, Brazil. We applied the P index for the current land use at the Posses catchment and for two hypothetical scenarios: scenario 1, in which P fertilizer was applied to all land uses, except for native forests; and scenario 2, which considered the use of P fertilizer as in scenario 1, and that the Environmental Protection Areas referring to the riparian forests and springs were totally restored. Considering current land use, almost the whole catchment area (91.4%) displayed a low P loss risk. The highest P index was associated to croplands and eucalyptus plantations. Regarding scenario 1, areas under pasture fell into the low (15.1%), medium (45.5%), high (27.1%) and very high (12.3%) P index categories. Environmental Protection Areas on scenario 2 decreased the P loss risk from the scenario 1 in 37.6%. Hence, the model outputs indicate that the reforestation of buffer zones can decrease P loss risk in the case increasing use of P fertilizer. The P index model is a potential support tool to promote judicious use of fertilizers and conservation practices at the Posses catchment.Editora da UFLA2017-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000500565Ciência e Agrotecnologia v.41 n.5 2017reponame:Ciência e Agrotecnologia (Online)instname:Universidade Federal de Lavras (UFLA)instacron:UFLA10.1590/1413-70542017415012217info:eu-repo/semantics/openAccessBispo,Diêgo Faustolo AlvesSilva,Marx Leandro NavesMarques,João José Granate de Sá e MeloBechmann,MarianneBatista,Pedro Velloso GomesCuri,Niltoneng2017-11-09T00:00:00Zoai:scielo:S1413-70542017000500565Revistahttp://www.scielo.br/cagroPUBhttps://old.scielo.br/oai/scielo-oai.php||renpaiva@dbi.ufla.br|| editora@editora.ufla.br1981-18291413-7054opendoar:2022-11-22T16:31:32.958804Ciência e Agrotecnologia (Online) - Universidade Federal de Lavras (UFLA)true
dc.title.none.fl_str_mv Phosphorus transfer at a small catchment in southeastern Brazil: distributed modelling in different land use scenarios
title Phosphorus transfer at a small catchment in southeastern Brazil: distributed modelling in different land use scenarios
spellingShingle Phosphorus transfer at a small catchment in southeastern Brazil: distributed modelling in different land use scenarios
Bispo,Diêgo Faustolo Alves
P index
nutrient loss
water erosion
land use management
environmental services.
title_short Phosphorus transfer at a small catchment in southeastern Brazil: distributed modelling in different land use scenarios
title_full Phosphorus transfer at a small catchment in southeastern Brazil: distributed modelling in different land use scenarios
title_fullStr Phosphorus transfer at a small catchment in southeastern Brazil: distributed modelling in different land use scenarios
title_full_unstemmed Phosphorus transfer at a small catchment in southeastern Brazil: distributed modelling in different land use scenarios
title_sort Phosphorus transfer at a small catchment in southeastern Brazil: distributed modelling in different land use scenarios
author Bispo,Diêgo Faustolo Alves
author_facet Bispo,Diêgo Faustolo Alves
Silva,Marx Leandro Naves
Marques,João José Granate de Sá e Melo
Bechmann,Marianne
Batista,Pedro Velloso Gomes
Curi,Nilton
author_role author
author2 Silva,Marx Leandro Naves
Marques,João José Granate de Sá e Melo
Bechmann,Marianne
Batista,Pedro Velloso Gomes
Curi,Nilton
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Bispo,Diêgo Faustolo Alves
Silva,Marx Leandro Naves
Marques,João José Granate de Sá e Melo
Bechmann,Marianne
Batista,Pedro Velloso Gomes
Curi,Nilton
dc.subject.por.fl_str_mv P index
nutrient loss
water erosion
land use management
environmental services.
topic P index
nutrient loss
water erosion
land use management
environmental services.
description ABSTRACT Identifying and ranking nutrient loss risk areas are important steps towards integrated catchment management. This study aimed to apply the P index model at the Posses catchment, south of the state of Minas Gerais, Brazil. We applied the P index for the current land use at the Posses catchment and for two hypothetical scenarios: scenario 1, in which P fertilizer was applied to all land uses, except for native forests; and scenario 2, which considered the use of P fertilizer as in scenario 1, and that the Environmental Protection Areas referring to the riparian forests and springs were totally restored. Considering current land use, almost the whole catchment area (91.4%) displayed a low P loss risk. The highest P index was associated to croplands and eucalyptus plantations. Regarding scenario 1, areas under pasture fell into the low (15.1%), medium (45.5%), high (27.1%) and very high (12.3%) P index categories. Environmental Protection Areas on scenario 2 decreased the P loss risk from the scenario 1 in 37.6%. Hence, the model outputs indicate that the reforestation of buffer zones can decrease P loss risk in the case increasing use of P fertilizer. The P index model is a potential support tool to promote judicious use of fertilizers and conservation practices at the Posses catchment.
publishDate 2017
dc.date.none.fl_str_mv 2017-09-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000500565
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000500565
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1413-70542017415012217
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Editora da UFLA
publisher.none.fl_str_mv Editora da UFLA
dc.source.none.fl_str_mv Ciência e Agrotecnologia v.41 n.5 2017
reponame:Ciência e Agrotecnologia (Online)
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Ciência e Agrotecnologia (Online)
collection Ciência e Agrotecnologia (Online)
repository.name.fl_str_mv Ciência e Agrotecnologia (Online) - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv ||renpaiva@dbi.ufla.br|| editora@editora.ufla.br
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