Numerical analysis of the impact of charcoal production on soil hydrological behavior, runoff response and erosion susceptibility

Detalhes bibliográficos
Autor(a) principal: Ajayi, Ayodele
Data de Publicação: 2009
Outros Autores: Oguntunde, Philip, Joseph, Abiodun, Dias Junior, Moacir de Souza
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/39769
Resumo: The impact of charcoal production on soil hydraulic properties, runoff response and erosion susceptibility were studied in both field and simulation experiments. Core and composite samples, from 12 randomly selected sites within the catchment of Kotokosu were taken from the 0-10 cm layer of a charcoal site soil (CSS) and adjacent field soils (AFS). These samples were used to determine saturated hydraulic conductivity (Ksat), bulk density, total porosity, soil texture and color. Infiltration, surface albedo and soil surface temperature were also measured in both CSS and AFS. Measured properties were used as entries in a rainfall runoff simulation experiment on a smooth (5 % slope) plot of 25 x 25 m grids with 10 cm resolutions. Typical rainfall intensities of the study watershed (high, moderate and low) were applied to five different combinations of Ks distributions that could be expected in this landscape. The results showed significantly (p < 0.01) higher flow characteristics of the soil under charcoal kilns (increase of 88 %). Infiltration was enhanced and runoff volume reduced significantly. The results showed runoff reduction of about 37 and 18 %, and runoff coefficient ranging from 0.47-0.75 and 0.04-0.39 or simulation based on high (200 mm h-1) and moderate (100 mm h-1) rainfall events over the CSS and AFS areas, respectively. Other potential impacts of charcoal production on watershed hydrology were described. The results presented, together with watershed measurements, when available, are expected to enhance understanding of the hydrological responses of ecosystems to indiscriminate charcoal production and related activities in this region.
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spelling Numerical analysis of the impact of charcoal production on soil hydrological behavior, runoff response and erosion susceptibilityInvestigação numérica/quantitativa sobre o impacto do processo de produção de carvão nas propriedades hidráulicas, resposta ao deflúvio e suscetibilidade do solo à erosãoHydro-physical propertiesInfiltrationRunoffWatershed hydrologyPropriedades hidrofísicasInfiltraçãoDeflúvio simuladoBacia hidrológicaThe impact of charcoal production on soil hydraulic properties, runoff response and erosion susceptibility were studied in both field and simulation experiments. Core and composite samples, from 12 randomly selected sites within the catchment of Kotokosu were taken from the 0-10 cm layer of a charcoal site soil (CSS) and adjacent field soils (AFS). These samples were used to determine saturated hydraulic conductivity (Ksat), bulk density, total porosity, soil texture and color. Infiltration, surface albedo and soil surface temperature were also measured in both CSS and AFS. Measured properties were used as entries in a rainfall runoff simulation experiment on a smooth (5 % slope) plot of 25 x 25 m grids with 10 cm resolutions. Typical rainfall intensities of the study watershed (high, moderate and low) were applied to five different combinations of Ks distributions that could be expected in this landscape. The results showed significantly (p < 0.01) higher flow characteristics of the soil under charcoal kilns (increase of 88 %). Infiltration was enhanced and runoff volume reduced significantly. The results showed runoff reduction of about 37 and 18 %, and runoff coefficient ranging from 0.47-0.75 and 0.04-0.39 or simulation based on high (200 mm h-1) and moderate (100 mm h-1) rainfall events over the CSS and AFS areas, respectively. Other potential impacts of charcoal production on watershed hydrology were described. The results presented, together with watershed measurements, when available, are expected to enhance understanding of the hydrological responses of ecosystems to indiscriminate charcoal production and related activities in this region.O impacto do processo de produção de carvão nas propriedades hidráulicas, a resposta ao deflúvio e a suscetibilidade do solo à erosão foram estudados em experimentos de campo e de simulação. Amostras indeformadas e compostas de 12 locais aleatoriamente selecionados dentro do reservatório de Kotokosu foram coletadas na camada de 0-10 cm no solo sob carvão (CSS) e no solo adjacente (AFS). Essas amostras foram usadas para determinar a condutividade hidráuli7ca saturada (Ksat), densidade do solo, porosidade total, textura e cor do solo. A infiltração, o albedo de superfície e a temperatura de superfície do solo também foram medidos no CSS e AFS. Os parâmetros medidos foram usados como entrada nos experimentos de simulação de deflúvio em uma parcela uniforme (5 % de declividade) de 25 x 25 m, com grides de 10 cm de resolução. Altas, moderadas e baixas intensidades de chuva, típicas da bacia em estudo, foram aplicadas em cinco diferentes combinações de Ksat, que poderiam ser esperadas nessa paisagem. Os resultados mostraram que as características do fluxo do solo sob carvão aumentaram significativamente (p < 0,01) em 88 %. A infiltração foi aumentada e o volume de deflúvio reduzido significativamente. Houve redução no deflúvio em torno de 37 e 18 %, e o coeficiente de deflúvio variou de 0,47-0,75 e 0,04 a 0,39 para a simulação de chuvas de alta (200 mm h-1) e moderada (100 mm h-1) intensidades nas condições CSS e AFS, respectivamente. Outros impactos em potencial da produção de carvão na bacia hidrológica foram observados. Espera-se que, com os resultados aqui apresentados, além dos determinados na bacia, quando disponíveis, haja uma compreensão melhor das respostas hidrológicas do ecossistema de fabricação indiscriminada de carvão e de outras atividades relacionadas nessa região.Sociedade Brasileira de Ciência do Solo (SBCS)2020-04-03T23:08:24Z2020-04-03T23:08:24Z2009-02info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfAJAYI, A. et al.Numerical analysis of the impact of charcoal production on soil hydrological behavior, runoff response and erosion susceptibility. Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 33, n.1, p. 137-145, Jan./Feb. 2009. DOI: 10.1590/S0100-06832009000100015.http://repositorio.ufla.br/jspui/handle/1/39769Revista Brasileira de Ciência do Solo (RBCS)reponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessAjayi, AyodeleOguntunde, PhilipJoseph, AbiodunDias Junior, Moacir de Souzaeng2020-04-03T23:08:24Zoai:localhost:1/39769Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2020-04-03T23:08:24Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Numerical analysis of the impact of charcoal production on soil hydrological behavior, runoff response and erosion susceptibility
Investigação numérica/quantitativa sobre o impacto do processo de produção de carvão nas propriedades hidráulicas, resposta ao deflúvio e suscetibilidade do solo à erosão
title Numerical analysis of the impact of charcoal production on soil hydrological behavior, runoff response and erosion susceptibility
spellingShingle Numerical analysis of the impact of charcoal production on soil hydrological behavior, runoff response and erosion susceptibility
Ajayi, Ayodele
Hydro-physical properties
Infiltration
Runoff
Watershed hydrology
Propriedades hidrofísicas
Infiltração
Deflúvio simulado
Bacia hidrológica
title_short Numerical analysis of the impact of charcoal production on soil hydrological behavior, runoff response and erosion susceptibility
title_full Numerical analysis of the impact of charcoal production on soil hydrological behavior, runoff response and erosion susceptibility
title_fullStr Numerical analysis of the impact of charcoal production on soil hydrological behavior, runoff response and erosion susceptibility
title_full_unstemmed Numerical analysis of the impact of charcoal production on soil hydrological behavior, runoff response and erosion susceptibility
title_sort Numerical analysis of the impact of charcoal production on soil hydrological behavior, runoff response and erosion susceptibility
author Ajayi, Ayodele
author_facet Ajayi, Ayodele
Oguntunde, Philip
Joseph, Abiodun
Dias Junior, Moacir de Souza
author_role author
author2 Oguntunde, Philip
Joseph, Abiodun
Dias Junior, Moacir de Souza
author2_role author
author
author
dc.contributor.author.fl_str_mv Ajayi, Ayodele
Oguntunde, Philip
Joseph, Abiodun
Dias Junior, Moacir de Souza
dc.subject.por.fl_str_mv Hydro-physical properties
Infiltration
Runoff
Watershed hydrology
Propriedades hidrofísicas
Infiltração
Deflúvio simulado
Bacia hidrológica
topic Hydro-physical properties
Infiltration
Runoff
Watershed hydrology
Propriedades hidrofísicas
Infiltração
Deflúvio simulado
Bacia hidrológica
description The impact of charcoal production on soil hydraulic properties, runoff response and erosion susceptibility were studied in both field and simulation experiments. Core and composite samples, from 12 randomly selected sites within the catchment of Kotokosu were taken from the 0-10 cm layer of a charcoal site soil (CSS) and adjacent field soils (AFS). These samples were used to determine saturated hydraulic conductivity (Ksat), bulk density, total porosity, soil texture and color. Infiltration, surface albedo and soil surface temperature were also measured in both CSS and AFS. Measured properties were used as entries in a rainfall runoff simulation experiment on a smooth (5 % slope) plot of 25 x 25 m grids with 10 cm resolutions. Typical rainfall intensities of the study watershed (high, moderate and low) were applied to five different combinations of Ks distributions that could be expected in this landscape. The results showed significantly (p < 0.01) higher flow characteristics of the soil under charcoal kilns (increase of 88 %). Infiltration was enhanced and runoff volume reduced significantly. The results showed runoff reduction of about 37 and 18 %, and runoff coefficient ranging from 0.47-0.75 and 0.04-0.39 or simulation based on high (200 mm h-1) and moderate (100 mm h-1) rainfall events over the CSS and AFS areas, respectively. Other potential impacts of charcoal production on watershed hydrology were described. The results presented, together with watershed measurements, when available, are expected to enhance understanding of the hydrological responses of ecosystems to indiscriminate charcoal production and related activities in this region.
publishDate 2009
dc.date.none.fl_str_mv 2009-02
2020-04-03T23:08:24Z
2020-04-03T23:08:24Z
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 AJAYI, A. et al.Numerical analysis of the impact of charcoal production on soil hydrological behavior, runoff response and erosion susceptibility. Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 33, n.1, p. 137-145, Jan./Feb. 2009. DOI: 10.1590/S0100-06832009000100015.
http://repositorio.ufla.br/jspui/handle/1/39769
identifier_str_mv AJAYI, A. et al.Numerical analysis of the impact of charcoal production on soil hydrological behavior, runoff response and erosion susceptibility. Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 33, n.1, p. 137-145, Jan./Feb. 2009. DOI: 10.1590/S0100-06832009000100015.
url http://repositorio.ufla.br/jspui/handle/1/39769
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv http://creativecommons.org/licenses/by-nc/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Sociedade Brasileira de Ciência do Solo (SBCS)
publisher.none.fl_str_mv Sociedade Brasileira de Ciência do Solo (SBCS)
dc.source.none.fl_str_mv Revista Brasileira de Ciência do Solo (RBCS)
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
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