2021
Spring water table depth mediates within-site variation of soil temperature in groundwater-fed mires
HORSÁK, Michal; Veronika HORSÁKOVÁ; Marek POLÁŠEK; Radovan COUFAL; Petra HÁJKOVÁ et. al.Základní údaje
Originální název
Spring water table depth mediates within-site variation of soil temperature in groundwater-fed mires
Autoři
HORSÁK, Michal (203 Česká republika, garant, domácí); Veronika HORSÁKOVÁ (203 Česká republika, domácí); Marek POLÁŠEK (203 Česká republika, domácí); Radovan COUFAL (203 Česká republika, domácí); Petra HÁJKOVÁ (203 Česká republika, domácí) a Michal HÁJEK (203 Česká republika, domácí)
Vydání
Hydrological Processes, Hoboken, John Wiley & Sons, 2021, 0885-6087
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10503 Water resources
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 3.784
Kód RIV
RIV/00216224:14310/21:00119259
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000678409000003
EID Scopus
2-s2.0-85111377684
Klíčová slova anglicky
climate change; soil thermal buffering; spring mire; temperature datalogger; water saturation; within-site variation
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 10. 3. 2022 16:01, Mgr. Marie Novosadová Šípková, DiS.
Anotace
V originále
Groundwater-dependent ecosystems represent globally rare edaphic islands of scattered distribution, often forming areas of regionally unique environmental conditions. A stable groundwater supply is a key parameter defining their ecological specificity, promoting also soil thermal buffering. Still, a limited number of studies dealt with the importance of water temperature in mire ecosystems and virtually no data exist on within-site variation in the temperature buffer effect. Three temperature dataloggers, placed in patches potentially differing in groundwater supply, were installed in each of 19 Western Carpathian spring mire sites from May 2019 to July 2020. Spring source plots statistically differed in water temperature parameters from the plots located towards the spring mire margin, which did not significantly differ from one another. At the majority of sites, the temperature values changed gradually from spring source to mire margins, fitting the pattern expected in the groundwater temperature buffering scenario. Dataloggers placed in the spring sources were the most distinctive from the others in thermal buffering parameters in conditional principal component analysis. The difference between the spring source and its margin was on average 3.25 degrees C for 95th percentile of the recorded water temperature data points (i.e. warm extremes) and 1.91 degrees C for 5th percentile (i.e. cold extremes). This suggests that if the temperature at spring source area is considered, thermal buffering within a site may mitigate mainly warm extremes. Thus, our data may provide an important baseline for predictions of possibly upcoming changes in spring mire hydrology caused by climate change. Both warming and precipitation decrease can give rise to the loss or substantial reduction of buffering effect if the contrasting parameters now recorded at the central part shift to those found towards the margins of groundwater-fed areas.
Návaznosti
GA19-01775S, projekt VaV |
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