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Description
| - Energy fluxes, including net radiation, latent heat flux and sensible heat flux were determined on clear days during the vegetative period in four types of land cover: wet meadow, pasture, arable field, and an artificial concrete surface. The average net radiation ranged between 123 W m(-2) at the concrete surface and 164 W m(-2) at the wet meadow. The mean maximum daytime latent heat ranged between 500 and 600 W m(-2), which corresponds to an evapotranspiration rate of about 0.2 g m(-2) s(-1) under the prevailing conditions of the wet meadow. The results demonstrated that the wet meadow dissipated about 30 % more energy through evapotranspiration than the field or the pasture, and up to 70 % more energy than the concrete surface. The evaporative fraction indicated that more than 100 % of the energy released by the wet meadow was dissipated through evapotranspiration; this was attributed to local heat advection. Wetland evapotranspiration thus contributes significantly to the cooling of agricultural landscapes; the energy released can reach several 100 MW km(-2). Wetland evapotranspiration has a double 'air conditioning' effect through which it equalises temperature differences: (1) surplus solar energy is bound into water vapour as latent heat; (2) The vapour moves towards cooler portions of the atmosphere where the energy is released. The air-conditioning effect of wetlands plays an important role in mitigating local climate extremes; this ecosystem service tends to be disregarded in relation to other better-known wetland functions such as nutrient retention and provision of high biodiversity.
- Energy fluxes, including net radiation, latent heat flux and sensible heat flux were determined on clear days during the vegetative period in four types of land cover: wet meadow, pasture, arable field, and an artificial concrete surface. The average net radiation ranged between 123 W m(-2) at the concrete surface and 164 W m(-2) at the wet meadow. The mean maximum daytime latent heat ranged between 500 and 600 W m(-2), which corresponds to an evapotranspiration rate of about 0.2 g m(-2) s(-1) under the prevailing conditions of the wet meadow. The results demonstrated that the wet meadow dissipated about 30 % more energy through evapotranspiration than the field or the pasture, and up to 70 % more energy than the concrete surface. The evaporative fraction indicated that more than 100 % of the energy released by the wet meadow was dissipated through evapotranspiration; this was attributed to local heat advection. Wetland evapotranspiration thus contributes significantly to the cooling of agricultural landscapes; the energy released can reach several 100 MW km(-2). Wetland evapotranspiration has a double 'air conditioning' effect through which it equalises temperature differences: (1) surplus solar energy is bound into water vapour as latent heat; (2) The vapour moves towards cooler portions of the atmosphere where the energy is released. The air-conditioning effect of wetlands plays an important role in mitigating local climate extremes; this ecosystem service tends to be disregarded in relation to other better-known wetland functions such as nutrient retention and provision of high biodiversity. (en)
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Title
| - The importance of wetlands in the energy balance of an agricultural landscape
- The importance of wetlands in the energy balance of an agricultural landscape (en)
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skos:prefLabel
| - The importance of wetlands in the energy balance of an agricultural landscape
- The importance of wetlands in the energy balance of an agricultural landscape (en)
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skos:notation
| - RIV/60076658:12220/14:43887407!RIV15-MSM-12220___
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/60076658:12220/14:43887407
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - Local climate; Heat advection; Evaporative fraction; Evapotranspiration; Bowen ratio; Heat balance (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
| - Wetlands Ecology And Management
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Pokorný, Jan
- Brom, Jakub
- Huryna, Hanna
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http://linked.open...ain/vavai/riv/wos
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issn
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number of pages
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http://bibframe.org/vocab/doi
| - 10.1007/s11273-013-9334-2
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http://localhost/t...ganizacniJednotka
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