Počet záznamů: 1

Changes in Soil Dissolved Organic Carbon Affect Reconstructed History and Projected Future Trends in Surface Water Acidification

SYSNO ASEP	0435290
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Changes in Soil Dissolved Organic Carbon Affect Reconstructed History and Projected Future Trends in Surface Water Acidification
Tvůrce(i)	Hruška, Jakub (UEK-B)_{RID, SAI, ORCID} Krám, Pavel (UEK-B)_{RID, SAI, ORCID} Moldan, Filip (UEK-B)_RID Oulehle, Filip (UEK-B)_{RID, ORCID, SAI} Evans, C. D. (GB) Wright, R. F. (NO) Cosby, B. J. (US) Kopáček, Jiří (BC-A)_{RID, ORCID}
Zdroj.dok.	Water, Air, and Soil Pollution. - : Springer - ISSN 0049-6979 Roč. 225, č. 7 (2014), s. 2015
Poč.str.	13 s.
Jazyk dok.	eng - angličtina
Země vyd.	NL - Nizozemsko
Klíč. slova	acidification ; surface waters ; soils ; dissolved organic carbon ; magic model ; preindustrial water chemistry
Vědní obor RIV	EH - Ekologie - společenstva
Vědní obor RIV – spolupráce	Biologické centrum (od r. 2006) - Hydrologie a limnologie
CEP	ED1.1.00/02.0073 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy
Institucionální podpora	RVO:67179843 - RVO:67179843 ; BC-A - RVO:60077344
UT WOS	000340527100012
DOI	10.1007/s11270-014-2015-9
Anotace	Preindustrial (1850s) and future (2060) streamwater chemistry of an anthropogenically acidified small catchment was estimated using the MAGIC model for three different scenarios for dissolved organic carbon (DOC) concentrations and sources. The highest modeled pH = 5.7 for 1850s as well as for 2060 (pH = 4.4) was simulated given the assumption that streamwater DOC concentration was constant at the 1993 level. A scenario accounting for an increase of DOC as an inverse function of ionic strength (IS) of soilwater and streamwater resulted in much lower preindustrial (pH = 4.9) and future recovery to (pH = 4.1) if the stream riparian zone was assumed to be the only DOC source. If upland soilwater (where significant DOC increase was observed at −5 and −15 cm) was also included, DOC was partly neutralized within the soil and higher preindustrial pH = 5.3 and future pH = 4.2 were estimated. The observed DOC stream flux was 2–4 times higher than the potential carbon production of the riparian zone, implying that this is unlikely to be the sole DOC source. Modeling based on the assumption that stream DOC changes are solely attributable to changes in the riparian zone appears likely to underestimate preindustrial pH.
Pracoviště	Ústav výzkumu globální změny
Kontakt	Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268
Rok sběru	2015

Počet záznamů: 1