Počet záznamů: 1
Observed and predicted changes in the water balance of the Czech landscape– facts and some consequences
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SYSNO ASEP 0480874 Druh ASEP A - Abstrakt Zařazení RIV Záznam nebyl označen do RIV Zařazení RIV Není vybrán druh dokumentu Název Observed and predicted changes in the water balance of the Czech landscape– facts and some consequences Tvůrce(i) Trnka, Miroslav (UEK-B) RID, ORCID, SAI
Vizina, A. (CZ)
Hanel, M. (CZ)
Balek, Jan (UEK-B) ORCID, SAI, RID
Hlavinka, Petr (UEK-B) RID, ORCID, SAI
Semerádová, Daniela (UEK-B) RID, ORCID, SAI
Možný, M. (CZ)
Chuchma, F. (CZ)
Farda, Aleš (UEK-B) RID, SAI
Skalák, Petr (UEK-B) RID, SAI, ORCID
Brázdil, Rudolf (UEK-B) RID, SAI, ORCID
Dobrovolný, Petr (UEK-B) RID, ORCID, SAI
Zahradníček, Pavel (UEK-B) RID, SAI
Štěpánek, Petr (UEK-B) RID, SAI, ORCID
Janouš, Dalibor (UEK-B) RID, SAI
Cienciala, E. (CZ)
Žalud, Zdeněk (UEK-B) RID, ORCID, SAIZdroj.dok. Quo vaditis agriculture, forestry and society under Global Change?: Book of abstracts. - Brno : Global Change Research Institute of the Czech Academy of Sciences, 2017 - ISBN 978-80-87902-20-2
S. 9Poč.str. 1 s. Akce Quo vaditis agriculture, forestry and society under Global Change? Datum konání 02.10.2017 - 04.10.2017 Místo konání Velké Karlovice Země CZ - Česká republika Typ akce EUR Jazyk dok. eng - angličtina Země vyd. CZ - Česká republika Klíč. slova water requirements ; agriculture ; vegetation dynamics Vědní obor RIV DG - Vědy o atmosféře, meteorologie Institucionální podpora UEK-B - RVO:86652079 Anotace The quantification of changes in water requirements and the outlook for coming decades
corresponds to the recommendation of the recent strategic documents. The water requirements
for agriculture were estimated at 500x500 m grid for the entire territory of the Czech Republic
based on daily weather data, slope and aspect, soil water holding capacity and potential
influence of groundwater. The estimates included also vegetation dynamics as well as sowing
/ sowing / sensitive period / harvest timing in relation to the weather patterns of the given year
and other key factors influencing the water need (e.g. varying leaf area and root depth). The
effect of increasing ambient CO2 on the water regime of plants was also included. The available
water resources were estimated on the basis of the BILAN monthly balance model, and the
impacts of both the water management system and actual withdrawals and discharges were
taken into account in the calculations. Compatibility between the BILAN and SoilClim
parameters was ensured by their integration. For better interpretability, the management of
water resources and their availability has been analyzed both at the level of individual
catchments and their integration. The findings for the period from 1956 to 2016 clearly shows
tendency towards more frequent and severe droughts toward the end of the period and with
major drought events occurring during 1990´s. It also showed the severity of 1947 event that is
however comparable to those observed in 2003 and 2015. The projections for the upcoming
decades clearly indicate much higher probability of both agricultural and hydrological drought.
When the modelling cascade was used to assess adequacy of water resources for the current
level of withdrawals and consumptions it became clear that in some catchments (e.g. Thaya
river) would not have sufficient resources to meet the demand even during mild drought
episodes by 2030´s.Pracoviště Ústav výzkumu globální změny Kontakt Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Rok sběru 2018
Počet záznamů: 1