DETERMINANT PLUVIOMETRIC CHARACTERISTICS OF SEDIMENT TRANSPORT IN A CATCHMENT WITH THINNED VEGETATION IN THE TROPICAL SEMIARID
ABSTRACT Knowing determinant factors of erosive process is essential to adopt soil conservationist and loss-mitigation measures. Therefore, the objective of this work was to assess the correlation between rainfall characteristics and sediment transport in the Semiarid region of Brazil. The study was...
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| creator | SOUSA, MARCOS MAKEISON MOREIRA DE PALÁCIO, HELBA ARAÚJO DE QUEIROZ ANDRADE, EUNICE MAIA DE RIBEIRO FILHO, JACQUES CARVALHO MOURA, MATHEUS MAGALHÃES SILVA |
| description | ABSTRACT Knowing determinant factors of erosive process is essential to adopt soil conservationist and loss-mitigation measures. Therefore, the objective of this work was to assess the correlation between rainfall characteristics and sediment transport in the Semiarid region of Brazil. The study was conducted at the Iguatu Experimental Basin in the state of Ceará, Brazil, in a watershed with area of 1.15 ha. The vegetation was thinned by removal of plants with diameters below 10 cm, and the area remained with an arboreous cover of 60%. The following variables were evaluated from 2012 to 2016: rainfall depth (mm), rainfall duration (hours), maximum rainfall intensity in 5, 10, 15, 20, 30, 45, and 60 minutes (mm h-1), mean rainfall intensity (mm h-1), rainfall depth in the previous 5 days (mm), runoff depth (mm), and transported sediment (kg ha-1). The records showed 158 rainfall events, 27 with surface runoff and 24 with sediment transport. The correlations were investigated by multivariate analysis of principal components (PC). The model explained 84% of total variance with four PC-PC1, PC2, PC3, and PC4 were formed, respectively, for disaggregating power of rainfall on soil particles, represented by the rainfall intensities; soil water content; runoff depth and sediment transport; and rainfall duration and interval between rainfalls. The highest factorial weight was found for the maximum intensity in 20 minutes, indicating the need for further hydrological studies focused on this variable at basin scale in areas of the Semiarid region of Brazil subjected to thinning of the vegetation.
RESUMO Conhecer os fatores determinantes no processo erosivo é essencial na adoção de medidas conservacionistas e mitigadoras das perdas do solo. Portanto, objetivou-se com essa pesquisa entender a relação existente entre as características da chuva e a produção de sedimentos no semiárido brasileiro. O estudo ocorreu na Bacia Experimental de Iguatu, Ceará, em uma microbacia com área de 1,15 ha. No raleamento eliminou -se os indivíduos vegetais com diâmetros < 10 cm, ficando a área com uma cobertura arbórea de 60%. As variáveis investigadas no período (2012 a 2016) foram: Precipitação (PPT - mm); Duração da Precipitação (Dur. PP - h); Intensidade máxima de 5 a 60 min (mm h-1); Intensidade média da Precipitação (INT PPT - mm h-1); Precipitações antecedentes dos últimos 5 dias (P.A1 a P.A5 - mm); Lâmina escoada (Lesc. - mm) e Produção de sedimentos (PS - kg ha-1). Foram registr |
| doi_str_mv | 10.1590/1983-21252020v33n322rc |
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RESUMO Conhecer os fatores determinantes no processo erosivo é essencial na adoção de medidas conservacionistas e mitigadoras das perdas do solo. Portanto, objetivou-se com essa pesquisa entender a relação existente entre as características da chuva e a produção de sedimentos no semiárido brasileiro. O estudo ocorreu na Bacia Experimental de Iguatu, Ceará, em uma microbacia com área de 1,15 ha. No raleamento eliminou -se os indivíduos vegetais com diâmetros < 10 cm, ficando a área com uma cobertura arbórea de 60%. As variáveis investigadas no período (2012 a 2016) foram: Precipitação (PPT - mm); Duração da Precipitação (Dur. PP - h); Intensidade máxima de 5 a 60 min (mm h-1); Intensidade média da Precipitação (INT PPT - mm h-1); Precipitações antecedentes dos últimos 5 dias (P.A1 a P.A5 - mm); Lâmina escoada (Lesc. - mm) e Produção de sedimentos (PS - kg ha-1). Foram registrados 158 eventos pluviométricos, 27 com escoamento superficial e 24 com produção de sedimentos. As relações foram investigadas pela análise multivariada de componentes principais. O modelo explicou 84% da variância total em quatro componentes. As componentes (CP1, CP2, CP3 e CP4) foram formadas, respectivamente, pelo poder desagregador da chuva, representada pelas intensidades; pelo conteúdo de água no solo; lâmina escoada e produção de sedimentos e pela duração e intervalo sem precipitação. O maior peso fatorial foi atribuído ao I20, sugerindo maior atenção em estudos hidrológicos para esta variável em escalas de microbacias na região semiárida brasileira submetidas ao manejo de raleamento.</description><identifier>ISSN: 0100-316X</identifier><identifier>ISSN: 1983-2125</identifier><identifier>EISSN: 1983-2125</identifier><identifier>DOI: 10.1590/1983-21252020v33n322rc</identifier><language>eng ; por</language><publisher>Mossoro: Universidade Federal Rural do Semiárido</publisher><subject>AGRICULTURE, DAIRY & ANIMAL SCIENCE ; AGRONOMY ; Correlation analysis ; Diameters ; Experimental basins ; FISHERIES ; FOOD SCIENCE & TECHNOLOGY ; FORESTRY ; Hydrology ; Mitigation ; Moisture content ; Multivariate analysis ; Plants (botany) ; Rainfall ; Rainfall intensity ; Runoff ; Sediment transport ; Semi arid areas ; Semiarid lands ; Soil conservation ; Soil water ; Soils ; Surface runoff ; Vegetation ; VETERINARY SCIENCES ; Water content ; Water depth</subject><ispartof>Caatinga, 2020-09, Vol.33 (3), p.785-793</ispartof><rights>2020. This work is licensed under http://creativecommons.org/licenses/by/3.0/deed.pt (the “License”). 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Caatinga</addtitle><description>ABSTRACT Knowing determinant factors of erosive process is essential to adopt soil conservationist and loss-mitigation measures. Therefore, the objective of this work was to assess the correlation between rainfall characteristics and sediment transport in the Semiarid region of Brazil. The study was conducted at the Iguatu Experimental Basin in the state of Ceará, Brazil, in a watershed with area of 1.15 ha. The vegetation was thinned by removal of plants with diameters below 10 cm, and the area remained with an arboreous cover of 60%. The following variables were evaluated from 2012 to 2016: rainfall depth (mm), rainfall duration (hours), maximum rainfall intensity in 5, 10, 15, 20, 30, 45, and 60 minutes (mm h-1), mean rainfall intensity (mm h-1), rainfall depth in the previous 5 days (mm), runoff depth (mm), and transported sediment (kg ha-1). The records showed 158 rainfall events, 27 with surface runoff and 24 with sediment transport. The correlations were investigated by multivariate analysis of principal components (PC). The model explained 84% of total variance with four PC-PC1, PC2, PC3, and PC4 were formed, respectively, for disaggregating power of rainfall on soil particles, represented by the rainfall intensities; soil water content; runoff depth and sediment transport; and rainfall duration and interval between rainfalls. The highest factorial weight was found for the maximum intensity in 20 minutes, indicating the need for further hydrological studies focused on this variable at basin scale in areas of the Semiarid region of Brazil subjected to thinning of the vegetation.
RESUMO Conhecer os fatores determinantes no processo erosivo é essencial na adoção de medidas conservacionistas e mitigadoras das perdas do solo. Portanto, objetivou-se com essa pesquisa entender a relação existente entre as características da chuva e a produção de sedimentos no semiárido brasileiro. O estudo ocorreu na Bacia Experimental de Iguatu, Ceará, em uma microbacia com área de 1,15 ha. No raleamento eliminou -se os indivíduos vegetais com diâmetros < 10 cm, ficando a área com uma cobertura arbórea de 60%. As variáveis investigadas no período (2012 a 2016) foram: Precipitação (PPT - mm); Duração da Precipitação (Dur. PP - h); Intensidade máxima de 5 a 60 min (mm h-1); Intensidade média da Precipitação (INT PPT - mm h-1); Precipitações antecedentes dos últimos 5 dias (P.A1 a P.A5 - mm); Lâmina escoada (Lesc. - mm) e Produção de sedimentos (PS - kg ha-1). Foram registrados 158 eventos pluviométricos, 27 com escoamento superficial e 24 com produção de sedimentos. As relações foram investigadas pela análise multivariada de componentes principais. O modelo explicou 84% da variância total em quatro componentes. As componentes (CP1, CP2, CP3 e CP4) foram formadas, respectivamente, pelo poder desagregador da chuva, representada pelas intensidades; pelo conteúdo de água no solo; lâmina escoada e produção de sedimentos e pela duração e intervalo sem precipitação. 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PALÁCIO, HELBA ARAÚJO DE QUEIROZ ; ANDRADE, EUNICE MAIA DE ; RIBEIRO FILHO, JACQUES CARVALHO ; MOURA, MATHEUS MAGALHÃES SILVA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c370t-b3704b4bea9ef6620655a91944958e49a6dbfe07eaa0e296f74d142c087692623</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng ; por</language><creationdate>2020</creationdate><topic>AGRICULTURE, DAIRY & ANIMAL SCIENCE</topic><topic>AGRONOMY</topic><topic>Correlation analysis</topic><topic>Diameters</topic><topic>Experimental basins</topic><topic>FISHERIES</topic><topic>FOOD SCIENCE & TECHNOLOGY</topic><topic>FORESTRY</topic><topic>Hydrology</topic><topic>Mitigation</topic><topic>Moisture content</topic><topic>Multivariate analysis</topic><topic>Plants (botany)</topic><topic>Rainfall</topic><topic>Rainfall intensity</topic><topic>Runoff</topic><topic>Sediment transport</topic><topic>Semi arid areas</topic><topic>Semiarid lands</topic><topic>Soil conservation</topic><topic>Soil water</topic><topic>Soils</topic><topic>Surface runoff</topic><topic>Vegetation</topic><topic>VETERINARY SCIENCES</topic><topic>Water content</topic><topic>Water depth</topic><toplevel>online_resources</toplevel><creatorcontrib>SOUSA, MARCOS MAKEISON MOREIRA DE</creatorcontrib><creatorcontrib>PALÁCIO, HELBA ARAÚJO DE QUEIROZ</creatorcontrib><creatorcontrib>ANDRADE, EUNICE MAIA DE</creatorcontrib><creatorcontrib>RIBEIRO FILHO, JACQUES CARVALHO</creatorcontrib><creatorcontrib>MOURA, MATHEUS MAGALHÃES SILVA</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Agricultural Science Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>Agricultural & Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>AUTh Library subscriptions: ProQuest Central</collection><collection>ProQuest Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>ProQuest One Community College</collection><collection>Latin America & Iberia Database</collection><collection>ProQuest Central</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Biological Science Collection</collection><collection>Agricultural Science Database</collection><collection>ProQuest research library</collection><collection>Biological Science Database</collection><collection>Research Library (Corporate)</collection><collection>Research Library China</collection><collection>ProQuest Earth, Atmospheric & Aquatic Science Database</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>ProQuest Central Basic</collection><collection>SciELO</collection><jtitle>Caatinga</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>SOUSA, MARCOS MAKEISON MOREIRA DE</au><au>PALÁCIO, HELBA ARAÚJO DE QUEIROZ</au><au>ANDRADE, EUNICE MAIA DE</au><au>RIBEIRO FILHO, JACQUES CARVALHO</au><au>MOURA, MATHEUS MAGALHÃES SILVA</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>DETERMINANT PLUVIOMETRIC CHARACTERISTICS OF SEDIMENT TRANSPORT IN A CATCHMENT WITH THINNED VEGETATION IN THE TROPICAL SEMIARID</atitle><jtitle>Caatinga</jtitle><addtitle>Rev. Caatinga</addtitle><date>2020-09-01</date><risdate>2020</risdate><volume>33</volume><issue>3</issue><spage>785</spage><epage>793</epage><pages>785-793</pages><issn>0100-316X</issn><issn>1983-2125</issn><eissn>1983-2125</eissn><abstract>ABSTRACT Knowing determinant factors of erosive process is essential to adopt soil conservationist and loss-mitigation measures. Therefore, the objective of this work was to assess the correlation between rainfall characteristics and sediment transport in the Semiarid region of Brazil. The study was conducted at the Iguatu Experimental Basin in the state of Ceará, Brazil, in a watershed with area of 1.15 ha. The vegetation was thinned by removal of plants with diameters below 10 cm, and the area remained with an arboreous cover of 60%. The following variables were evaluated from 2012 to 2016: rainfall depth (mm), rainfall duration (hours), maximum rainfall intensity in 5, 10, 15, 20, 30, 45, and 60 minutes (mm h-1), mean rainfall intensity (mm h-1), rainfall depth in the previous 5 days (mm), runoff depth (mm), and transported sediment (kg ha-1). The records showed 158 rainfall events, 27 with surface runoff and 24 with sediment transport. The correlations were investigated by multivariate analysis of principal components (PC). The model explained 84% of total variance with four PC-PC1, PC2, PC3, and PC4 were formed, respectively, for disaggregating power of rainfall on soil particles, represented by the rainfall intensities; soil water content; runoff depth and sediment transport; and rainfall duration and interval between rainfalls. The highest factorial weight was found for the maximum intensity in 20 minutes, indicating the need for further hydrological studies focused on this variable at basin scale in areas of the Semiarid region of Brazil subjected to thinning of the vegetation.
RESUMO Conhecer os fatores determinantes no processo erosivo é essencial na adoção de medidas conservacionistas e mitigadoras das perdas do solo. Portanto, objetivou-se com essa pesquisa entender a relação existente entre as características da chuva e a produção de sedimentos no semiárido brasileiro. O estudo ocorreu na Bacia Experimental de Iguatu, Ceará, em uma microbacia com área de 1,15 ha. No raleamento eliminou -se os indivíduos vegetais com diâmetros < 10 cm, ficando a área com uma cobertura arbórea de 60%. As variáveis investigadas no período (2012 a 2016) foram: Precipitação (PPT - mm); Duração da Precipitação (Dur. PP - h); Intensidade máxima de 5 a 60 min (mm h-1); Intensidade média da Precipitação (INT PPT - mm h-1); Precipitações antecedentes dos últimos 5 dias (P.A1 a P.A5 - mm); Lâmina escoada (Lesc. - mm) e Produção de sedimentos (PS - kg ha-1). Foram registrados 158 eventos pluviométricos, 27 com escoamento superficial e 24 com produção de sedimentos. As relações foram investigadas pela análise multivariada de componentes principais. O modelo explicou 84% da variância total em quatro componentes. As componentes (CP1, CP2, CP3 e CP4) foram formadas, respectivamente, pelo poder desagregador da chuva, representada pelas intensidades; pelo conteúdo de água no solo; lâmina escoada e produção de sedimentos e pela duração e intervalo sem precipitação. O maior peso fatorial foi atribuído ao I20, sugerindo maior atenção em estudos hidrológicos para esta variável em escalas de microbacias na região semiárida brasileira submetidas ao manejo de raleamento.</abstract><cop>Mossoro</cop><pub>Universidade Federal Rural do Semiárido</pub><doi>10.1590/1983-21252020v33n322rc</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0001-7176-0590</orcidid><orcidid>https://orcid.org/0000-0002-5105-4821</orcidid><orcidid>https://orcid.org/0000-0001-9544-009X</orcidid><orcidid>https://orcid.org/0000-0001-5460-3198</orcidid><orcidid>https://orcid.org/0000-0002-9750-0364</orcidid><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0100-316X |
| ispartof | Caatinga, 2020-09, Vol.33 (3), p.785-793 |
| issn | 0100-316X 1983-2125 1983-2125 |
| language | eng ; por |
| recordid | cdi_scielo_journals_S1983_21252020000300785 |
| source | Alma/SFX Local Collection; EZB Electronic Journals Library |
| subjects | AGRICULTURE, DAIRY & ANIMAL SCIENCE AGRONOMY Correlation analysis Diameters Experimental basins FISHERIES FOOD SCIENCE & TECHNOLOGY FORESTRY Hydrology Mitigation Moisture content Multivariate analysis Plants (botany) Rainfall Rainfall intensity Runoff Sediment transport Semi arid areas Semiarid lands Soil conservation Soil water Soils Surface runoff Vegetation VETERINARY SCIENCES Water content Water depth |
| title | DETERMINANT PLUVIOMETRIC CHARACTERISTICS OF SEDIMENT TRANSPORT IN A CATCHMENT WITH THINNED VEGETATION IN THE TROPICAL SEMIARID |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-24T20%3A07%3A11IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_sciel&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=DETERMINANT%20PLUVIOMETRIC%20CHARACTERISTICS%20OF%20SEDIMENT%20TRANSPORT%20IN%20A%20CATCHMENT%20WITH%20THINNED%20VEGETATION%20IN%20THE%20TROPICAL%20SEMIARID&rft.jtitle=Caatinga&rft.au=SOUSA,%20MARCOS%20MAKEISON%20MOREIRA%20DE&rft.date=2020-09-01&rft.volume=33&rft.issue=3&rft.spage=785&rft.epage=793&rft.pages=785-793&rft.issn=0100-316X&rft.eissn=1983-2125&rft_id=info:doi/10.1590/1983-21252020v33n322rc&rft_dat=%3Cproquest_sciel%3E2455792960%3C/proquest_sciel%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2455792960&rft_id=info:pmid/&rft_scielo_id=S1983_21252020000300785&rfr_iscdi=true |