Evaporation from water surface as climatic indicator to estimate mountain grassland evapotranspiration

• Autorzy: Misztal A. , Zarzycki J.

Warianty tytułu

PL

Parowanie wody jako klimatyczny wskaźnik oceny ewapotranspiracji górskich użytków zielonych

• Języki publikacji: EN

Abstrakty

EN

This paper presents a study on the evaporation of water from the surface in the area of the Lesser Pieniny Mts., determined on the basis of measurements at the climatic-lysimetric station in Jaworki. The evaporation of water from the surface is diversified in specific 10-day periods and months of the vegetation season, and the total for April-September was 334.1 mm. The quantity of evaporating water was lower than the measured reference evapotranspiration, assumed to be the evaporation of a well-watered, compact grassy sward, and lower than the reference evapotranspiration calculated in accordance with the Penman formula in French modification and the Penman-Monteith formula. In the area of the Lesser Pieniny Mts., the evaporation of water can be expressed as a function of the deficit of air humidity and – to a lesser extent – of air temperature. The seasonal plant coefficients kc determined on the basis of evaporation from open water surface Ew can be used successfully to determine the evapotranspiration of mountain grassland.

PL

W pracy omówiono parowanie z powierzchni wody w rejonie Małych Pienin, określone na podstawie pomiarów w stacji klimatyczno-lizymetrycznej w Jaworkach. Parowanie z powierzchni wody było zróżnicowane w poszczególnych dekadach i miesiącach okresu wegetacyjnego, a jego średnia z wielolecia 1974-1998 suma w okresie kwiecień-wrzesień wyniosła 334,1 mm. Ilość parującej wody była mniejsza od pomierzonej ewapotranspiracji wskaźnikowej za jaką uznano parowanie dobrze zaopatrzonej w wodę zwartej runi trawiastej oraz od ewapotranspiracji wskaźnikowej obliczonej według formuły Penmana w modyfikacji francuskiej i Penmana-Monteitha. W rejonie Małych Pienin parowanie z otwartej powierzchni wody można wyrazić jako funkcję niedosytu wilgotności powietrza oraz w mniejszym stopniu temperatury powietrza. Określone w oparciu o wartości ewapotranspiracji z otwartej powierzchni wody Ew sezonowe współczynniki roślinne kc mogą z powodzeniem służyć do wyznaczania ewapotranspiracji górskich zbiorowisk trawiastych.

Słowa kluczowe

EN

water evaporation; water surface; climatic factor; mountain grassland; evapotranspiration; seasonal plant

• Wydawca: -
• Czasopismo: Acta Agrophysica
• Rocznik: 2016
• Tom: 23
• Numer: 2
• Opis fizyczny: p.235-247,fig.,ref.

Twórcy

autor

Misztal A.

• Department of Ecology, Climatology and Air Protection, University of Agriculture, al.Mickiewicza 24/28, 30-059 Krakow, Poland

autor

Zarzycki J.

• Department of Ecology, Climatology and Air Protection, University of Agriculture, al.Mickiewicza 24/28, 30-059 Krakow, Poland

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