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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Norte / UEP-Parnaíba. |
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Data corrente: |
26/03/1993 |
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Data da última atualização: |
26/03/1993 |
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Autoria: |
MATTHIAS, A. D.; SALEHI, R. WARRICK, A. W. |
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Título: |
Bare evaporation near a surface poin-source emitter. |
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Ano de publicação: |
1986 |
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Fonte/Imprenta: |
Agricultural Water Management, v.11, n.3/4, p.257-277, 1986. |
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Idioma: |
Inglês |
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Conteúdo: |
Two field studies were conducted to estimate bare soil evaporation for 7 days following surface trickle irrigation from a point-source emitter. A microlysimeter method and an infrared thermometer method were used to estimate evaporation at several sites within both wetted dand non-wetted areas surrounding the emitter. Based on data from both methods, evaporation accounted for about 33-40% of the applied waterin bothestudies. Where the soil was wet, the microlysimeter method tended to estimate higher values than the infrared thermometer method. For dry soil conditions the infrared thermometer method estimates were higher. Agreement between the two methods was good for cumulative 7-day total evaporation estimates in both studies. |
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Palavras-Chave: |
Infrared; Infravermelho; Microlisimeter; Microlisimetro; Moisture; Termometria; Thermometry. |
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Thesagro: |
Água; Solo; Umidade. |
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Thesaurus Nal: |
soil; water. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01425naa a2200277 a 4500
001 1073271
005 1993-03-26
008 1986 bl --- 0-- u #d
100 1 $aMATTHIAS, A. D.
245 $aBare evaporation near a surface poin-source emitter.
260 $c1986
520 $aTwo field studies were conducted to estimate bare soil evaporation for 7 days following surface trickle irrigation from a point-source emitter. A microlysimeter method and an infrared thermometer method were used to estimate evaporation at several sites within both wetted dand non-wetted areas surrounding the emitter. Based on data from both methods, evaporation accounted for about 33-40% of the applied waterin bothestudies. Where the soil was wet, the microlysimeter method tended to estimate higher values than the infrared thermometer method. For dry soil conditions the infrared thermometer method estimates were higher. Agreement between the two methods was good for cumulative 7-day total evaporation estimates in both studies.
650 $asoil
650 $awater
650 $aÁgua
650 $aSolo
650 $aUmidade
653 $aInfrared
653 $aInfravermelho
653 $aMicrolisimeter
653 $aMicrolisimetro
653 $aMoisture
653 $aTermometria
653 $aThermometry
700 1 $aSALEHI, R. WARRICK, A. W.
773 $tAgricultural Water Management$gv.11, n.3/4, p.257-277, 1986.
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Embrapa Meio Norte / UEP-Parnaíba (CPAMN-UEPP) |
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