Evapotranspiration and Vegetation’s Role in Temperature Regulation Science of Climate Change

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25173154%3A_____%2F24%3AN0000003" target="_blank" >RIV/25173154:_____/24:N0000003 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.53234/scc202412/29" target="_blank" >http://dx.doi.org/10.53234/scc202412/29</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.53234/scc202412/29" target="_blank" >10.53234/scc202412/29</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Evapotranspiration and Vegetation’s Role in Temperature Regulation Science of Climate Change

Popis výsledku v původním jazyce

The principal role of water and vegetation in the distribution of solar energy and in local and global climate is shown on basis of measured data. Poor knowledge of the function of plants in climate formation results in erroneous decision-making in landscape management. The principles of solar energy distribution in the landscape can be understood and verified by measurement at the level of basic physics and biology. Examples are given for measuring the radiation balance of sunny and cloudy days and spring frosts. The role of clouds in solar energy input and heat flux from the surface of the earth to the atmosphere (greenhouse effect) is emphasized. The thermo graphic images show the essential role of water evaporation (evapotranspiration) in the tempera ture regime. Vegetation supplied with water has lower surface temperatures than dry surfaces with higher albedo. Based on literature data and our long-term measurements, we have determined an average evapotranspiration value of 100 mg.m-2. s-1 which is equal to latent heat flux 240 W.m2 . Drainage, urbanization, deforestation leads to a shift from latent heat of vaporization to sensible heat, and accelerated flow of heated air into the atmosphere. Per 1 km2 this represents a heat flux of 240 MW on a sunny day. The thermodynamic functions of water and vegetation are expressed in terms of ecosystem services. The history of human civilizations shows how deforestation, drainage, and urbanization lead to the drying up of the landscape. It is therefore necessary to recognize the role of plant physiological processes in the conversion of solar energy and the water cycle.

Název v anglickém jazyce

Evapotranspiration and Vegetation’s Role in Temperature Regulation Science of Climate Change

Popis výsledku anglicky

The principal role of water and vegetation in the distribution of solar energy and in local and global climate is shown on basis of measured data. Poor knowledge of the function of plants in climate formation results in erroneous decision-making in landscape management. The principles of solar energy distribution in the landscape can be understood and verified by measurement at the level of basic physics and biology. Examples are given for measuring the radiation balance of sunny and cloudy days and spring frosts. The role of clouds in solar energy input and heat flux from the surface of the earth to the atmosphere (greenhouse effect) is emphasized. The thermo graphic images show the essential role of water evaporation (evapotranspiration) in the tempera ture regime. Vegetation supplied with water has lower surface temperatures than dry surfaces with higher albedo. Based on literature data and our long-term measurements, we have determined an average evapotranspiration value of 100 mg.m-2. s-1 which is equal to latent heat flux 240 W.m2 . Drainage, urbanization, deforestation leads to a shift from latent heat of vaporization to sensible heat, and accelerated flow of heated air into the atmosphere. Per 1 km2 this represents a heat flux of 240 MW on a sunny day. The thermodynamic functions of water and vegetation are expressed in terms of ecosystem services. The history of human civilizations shows how deforestation, drainage, and urbanization lead to the drying up of the landscape. It is therefore necessary to recognize the role of plant physiological processes in the conversion of solar energy and the water cycle.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

<a href="/cs/project/TL05000150" target="_blank" >TL05000150: Biomasa v trvale udržitelné krajině: digitální platforma pro výuku fotosyntézy ve vodě a na souši k poznání úlohy rostlin v krajině</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the International CLINTEL Prague Science Conference

ISBN

—

ISSN

2703-9080

e-ISSN

2703-9072

Počet stran výsledku

14

Strana od-do

115-128

Název nakladatele

CLINTEL Working Group in the Czech Republic

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

12. 11. 2024

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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