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Registro Completo
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
17/04/2024 |
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Data da última atualização: |
18/04/2024 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 2 |
|
Autoria: |
ZHUANG, L.; CHEN, H.; YAN, P.; LIANG, X.; TEIXEIRA, W. G.; VAN GENUCHTEN, M. T.; LIN, K. |
|
Afiliação: |
LUWEN ZHUANG, SUN YAT-SEN UNIVERSITY; HAO CHEN, SUN YAT‐SEN UNIVERSITY; PING YAN, GUANGZHOU INSTITUTE OF GEOGRAPHY; XINGMEI LIANG, SUN YAT‐SEN UNIVERSITY; WENCESLAU GERALDES TEIXEIRA, CNPS; MARTINUS TH. VAN GENUCHTEN, UTRECHT UNIVERSITY; KAIRONG LIN, SUN YAT‐SEN UNIVERSITY. |
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Título: |
Unsaturated hydraulic property measurements of subtropical anthropogenic (purple) soils in China. |
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Ano de publicação: |
2024 |
|
Fonte/Imprenta: |
Vadose Zone Journal, e20334, 2024. |
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DOI: |
https://doi.org/10.1002/vzj2.20334 |
|
Idioma: |
Inglês |
|
Notas: |
On-line first. |
|
Conteúdo: |
Many anthropogenic soils, often referred to as red bed or purple soils, are distributed in various areas of southern China. Purple soils typically are highly weathered and often lead to natural and engineering hazards because of their relatively poor water retention properties. Knowledge of the unsaturated soil hydraulic properties of purple soils is crucial for their optimal management and various assessment studies. In this work, the hydraulic properties of purple soils from southern China were measured in the laboratory over the full moisture range using a combination of evaporation (HYPROP) and psychrometer (WP4C) approaches. Measured data were analyzed in terms of four different unimodal and bimodal soil hydraulic models. The measurements and analyses showed that bimodality was not overly significant for most samples. The good fit of the Peters–Durner–Iden models furthermore suggested that corner and film flows were important under relative dry conditions. Existing soil pedotransfer functions were found to provide a fairly close match for the slope of water retention curves with the exception of near saturated water contents and the saturated conductivity. To the best of our knowledge, this is the first time that unsaturated hydraulic data of purple soils are provided over the full moisture range. |
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Palavras-Chave: |
Solo Antropogênico. |
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Thesagro: |
Condutividade Hidráulica; Retenção de Água no Solo; Solo; Umidade. |
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Thesaurus NAL: |
Anthropogenic soil types; Hydraulic conductivity; Soil; Tropics. |
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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/1163660/1/Unsaturated-hydraulic-property-measurements-2024.pdf
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|
Marc: |
LEADER 02249naa a2200325 a 4500
001 2163660
005 2024-04-18
008 2024 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1002/vzj2.20334$2DOI
100 1 $aZHUANG, L.
245 $aUnsaturated hydraulic property measurements of subtropical anthropogenic (purple) soils in China.$h[electronic resource]
260 $c2024
500 $aOn-line first.
520 $aMany anthropogenic soils, often referred to as red bed or purple soils, are distributed in various areas of southern China. Purple soils typically are highly weathered and often lead to natural and engineering hazards because of their relatively poor water retention properties. Knowledge of the unsaturated soil hydraulic properties of purple soils is crucial for their optimal management and various assessment studies. In this work, the hydraulic properties of purple soils from southern China were measured in the laboratory over the full moisture range using a combination of evaporation (HYPROP) and psychrometer (WP4C) approaches. Measured data were analyzed in terms of four different unimodal and bimodal soil hydraulic models. The measurements and analyses showed that bimodality was not overly significant for most samples. The good fit of the Peters–Durner–Iden models furthermore suggested that corner and film flows were important under relative dry conditions. Existing soil pedotransfer functions were found to provide a fairly close match for the slope of water retention curves with the exception of near saturated water contents and the saturated conductivity. To the best of our knowledge, this is the first time that unsaturated hydraulic data of purple soils are provided over the full moisture range.
650 $aAnthropogenic soil types
650 $aHydraulic conductivity
650 $aSoil
650 $aTropics
650 $aCondutividade Hidráulica
650 $aRetenção de Água no Solo
650 $aSolo
650 $aUmidade
653 $aSolo Antropogênico
700 1 $aCHEN, H.
700 1 $aYAN, P.
700 1 $aLIANG, X.
700 1 $aTEIXEIRA, W. G.
700 1 $aVAN GENUCHTEN, M. T.
700 1 $aLIN, K.
773 $tVadose Zone Journal, e20334, 2024.
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