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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
29/08/2022 |
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Data da última atualização: |
29/08/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PESSOA, L. G. M.; FREIRE, M. B. G. dos S.; GREEN, C. H. M.; MIRANDA, M. F. A.; ARAUJO FILHO, J. C. de; PESSOA, W. R. L. S. |
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Afiliação: |
LUIZ G. M. PESSOA, UNIVERSIDADE FEDERAL RURAL DE PERNAMBUCO; MARIA B. G. DOS S. FREIRE, UNIVERSIDADE FEDERAL RURAL DE PERNAMBUCO; COLLEEN H. M. GREEN, NATIONAL OPERATIONS CENTER; MÁRCIO F. A. MIRANDA, INSTITUTO FEDERAL DE PERNAMBUCO; JOSE COELHO DE ARAUJO FILHO, CNPS; WAGNER R. L. S. PESSOA, UNIVERSIDADE ESTADUAL DO PIAUÍ. |
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Título: |
Assessment of soil salinity status under different land-use conditions in the semiarid region of Northeastern Brazil. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Ecological Indicators, v. 141, 109139, Aug. 2022. |
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DOI: |
https://doi.org/10.1016/j.ecolind.2022.109139 |
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Idioma: |
Inglês |
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Conteúdo: |
Soil salinization and sodification, caused by inadequate land management, is one of the main threats to the semiarid agroecosystems. It is essential to investigate saline levels under different land-use conditions to maintain the sustainability of agricultural production. The main objective of this study was to diagnose the salinity status of the soil in different land-use conditions in the semiarid region of Northeast Brazil. Soil samples were collected in the surface layer (0-5 cm) of three different land-use conditions: areas of low salinity (native vegetation - Caatinga), areas of different saline levels (cultivated areas), and areas of very high salinity (desertified by salinity), and compared regarding the chemical attributes of the soils by descriptive and multivariate analysis. The results showed that sodium and chloride were the predominant soluble ions in cultivated and desertified areas due to saline waters commonly used in the study region. Increases in electrical conductivity values of 1219 and 23207% were observed for cultivated and desertified areas, respectively, compared to areas of native vegetation. The principal component analysis contributed to identifying parameters responsible for the variation in soil salinity, and the second factor identified that percentage of exchangeable sodium, electrical conductivity, and exchangeable and soluble sodium plays an essential role in soil desertification. However, calcium, magnesium, sodium, and chloride ions correlated positively with variables that degrade soils - EC, ESP, and SAR. We also found that in desertified areas, in addition to chloride, sulfate is also present in expressive levels, and due to the strong associations with calcium, magnesium, and sodium, our study suggests that in addition to the free forms of these ions, the forms of chlorides and sulfates of calcium, magnesium, and sodium also effectively contribute to the degradation of the areas. The combination of multivariate analysis × geochemistry × laboratory techniques was a valuable tool to identify and monitor saline levels in converting uncultivated to cultivated areas and from cultivated areas to desertified areas. MenosSoil salinization and sodification, caused by inadequate land management, is one of the main threats to the semiarid agroecosystems. It is essential to investigate saline levels under different land-use conditions to maintain the sustainability of agricultural production. The main objective of this study was to diagnose the salinity status of the soil in different land-use conditions in the semiarid region of Northeast Brazil. Soil samples were collected in the surface layer (0-5 cm) of three different land-use conditions: areas of low salinity (native vegetation - Caatinga), areas of different saline levels (cultivated areas), and areas of very high salinity (desertified by salinity), and compared regarding the chemical attributes of the soils by descriptive and multivariate analysis. The results showed that sodium and chloride were the predominant soluble ions in cultivated and desertified areas due to saline waters commonly used in the study region. Increases in electrical conductivity values of 1219 and 23207% were observed for cultivated and desertified areas, respectively, compared to areas of native vegetation. The principal component analysis contributed to identifying parameters responsible for the variation in soil salinity, and the second factor identified that percentage of exchangeable sodium, electrical conductivity, and exchangeable and soluble sodium plays an essential role in soil desertification. However, calcium, magnesium, sodium, and chloride ions correl... Mostrar Tudo |
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Thesagro: |
Deterioração do Solo; Gestão; Mudança Climática; Solo; Solo Salino; Solo Sódico. |
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Thesaurus Nal: |
Climate change; Saline soils; Sodic soils; Soil degradation; Soil management. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1145823/1/Assessment-of-soil-salinity-status-2022.pdf
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Marc: |
LEADER 03181naa a2200325 a 4500
001 2145823
005 2022-08-29
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.ecolind.2022.109139$2DOI
100 1 $aPESSOA, L. G. M.
245 $aAssessment of soil salinity status under different land-use conditions in the semiarid region of Northeastern Brazil.$h[electronic resource]
260 $c2022
520 $aSoil salinization and sodification, caused by inadequate land management, is one of the main threats to the semiarid agroecosystems. It is essential to investigate saline levels under different land-use conditions to maintain the sustainability of agricultural production. The main objective of this study was to diagnose the salinity status of the soil in different land-use conditions in the semiarid region of Northeast Brazil. Soil samples were collected in the surface layer (0-5 cm) of three different land-use conditions: areas of low salinity (native vegetation - Caatinga), areas of different saline levels (cultivated areas), and areas of very high salinity (desertified by salinity), and compared regarding the chemical attributes of the soils by descriptive and multivariate analysis. The results showed that sodium and chloride were the predominant soluble ions in cultivated and desertified areas due to saline waters commonly used in the study region. Increases in electrical conductivity values of 1219 and 23207% were observed for cultivated and desertified areas, respectively, compared to areas of native vegetation. The principal component analysis contributed to identifying parameters responsible for the variation in soil salinity, and the second factor identified that percentage of exchangeable sodium, electrical conductivity, and exchangeable and soluble sodium plays an essential role in soil desertification. However, calcium, magnesium, sodium, and chloride ions correlated positively with variables that degrade soils - EC, ESP, and SAR. We also found that in desertified areas, in addition to chloride, sulfate is also present in expressive levels, and due to the strong associations with calcium, magnesium, and sodium, our study suggests that in addition to the free forms of these ions, the forms of chlorides and sulfates of calcium, magnesium, and sodium also effectively contribute to the degradation of the areas. The combination of multivariate analysis × geochemistry × laboratory techniques was a valuable tool to identify and monitor saline levels in converting uncultivated to cultivated areas and from cultivated areas to desertified areas.
650 $aClimate change
650 $aSaline soils
650 $aSodic soils
650 $aSoil degradation
650 $aSoil management
650 $aDeterioração do Solo
650 $aGestão
650 $aMudança Climática
650 $aSolo
650 $aSolo Salino
650 $aSolo Sódico
700 1 $aFREIRE, M. B. G. dos S.
700 1 $aGREEN, C. H. M.
700 1 $aMIRANDA, M. F. A.
700 1 $aARAUJO FILHO, J. C. de
700 1 $aPESSOA, W. R. L. S.
773 $tEcological Indicators$gv. 141, 109139, Aug. 2022.
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