Registro Completo |
Biblioteca(s): |
Embrapa Meio Norte / UEP-Parnaíba. |
Data corrente: |
26/03/1993 |
Data da última atualização: |
26/03/1993 |
Autoria: |
MATTHIAS, A. D.; SALEHI, R. WARRICK, A. W. |
Título: |
Bare evaporation near a surface poin-source emitter. |
Ano de publicação: |
1986 |
Fonte/Imprenta: |
Agricultural Water Management, v.11, n.3/4, p.257-277, 1986. |
Idioma: |
Inglês |
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. |
Palavras-Chave: |
Infrared; Infravermelho; Microlisimeter; Microlisimetro; Moisture; Termometria; Thermometry. |
Thesagro: |
Água; Solo; Umidade. |
Thesaurus Nal: |
soil; water. |
Categoria do assunto: |
-- |
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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Registro original: |
Embrapa Meio Norte / UEP-Parnaíba (CPAMN-UEPP) |