Počet záznamů: 1
Earlier winter/spring runoff and snowmelt during warmer winters lead to lower summer chlorophyll-a in north temperate lakes.
- 1.
SYSNO ASEP 0553270 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Earlier winter/spring runoff and snowmelt during warmer winters lead to lower summer chlorophyll-a in north temperate lakes. Tvůrce(i) Hrycik, A.R. (US)
Isles, P.D.F. (CH)
Adrian, R. (DE)
Albright, B.J. (US)
Bacon, L.C. (US)
Berger, S. (DE)
Bhattacharya, R. (CA)
Grossart, H.P. (DE)
Hejzlar, Josef (BC-A) RID, ORCID
Hetherington, A.L. (US)
Knoll, L.B. (US)
Laas, A. (EE)
McDonald, C.P. (US)
Merrell, K. (US)
Nejstgaard, J.C. (DE)
Nelson, K. (US)
Nõges, P. (EE)
Paterson, A. M. (CA)
Pilla, R.M. (US)
Robertson, D.M. (US)
Rudstam, L. G. (US)
Rusak, J. A. (CA)
Sadro, S. (US)
Silow, E.A. (RU)
Stockwell, J. D. (US)
Yao, H. (CN)
Yokota, K. (US)
Pierson, D. C. (SE)Celkový počet autorů 28 Zdroj.dok. Global Change Biology. - : Wiley - ISSN 1354-1013
Roč. 27, č. 19 (2021), s. 4615-4629Poč.str. 15 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova chlorophyll-a ; climate change ; long-term data ; phytoplankton biomass ; snowmelt ; stream discharge Vědní obor RIV DA - Hydrologie a limnologie Obor OECD Hydrology CEP EF16_025/0007417 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Omezený přístup Institucionální podpora BC-A - RVO:60077344 UT WOS 000674903300001 EID SCOPUS 85111868035 DOI 10.1111/gcb.15797 Anotace Winter conditions, such as ice cover and snow accumulation, are changing rapidly at northern latitudes and can have important implications for lake processes. For example, snowmelt in the watershed-a defining feature of lake hydrology because it delivers a large portion of annual nutrient inputs-is becoming earlier. Consequently, earlier and a shorter duration of snowmelt are expected to affect annual phytoplankton biomass. To test this hypothesis, we developed an index of runoff timing based on the date when 50% of cumulative runoff between January 1 and May 31 had occurred. The runoff index was computed using stream discharge for inflows, outflows, or for flows from nearby streams for 41 lakes in Europe and North America. The runoff index was then compared with summer chlorophyll-a (Chl-a) concentration (a proxy for phytoplankton biomass) across 5-53 years for each lake. Earlier runoff generally corresponded to lower summer Chl-a. Furthermore, years with earlier runoff also had lower winter/spring runoff magnitude, more protracted runoff, and earlier ice-out. We examined several lake characteristics that may regulate the strength of the relationship between runoff timing and summer Chl-a concentrations., however, our tested covariates had little effect on the relationship. Date of ice-out was not clearly related to summer Chl-a concentrations. Our results indicate that ongoing changes in winter conditions may have important consequences for summer phytoplankton biomass and production. Pracoviště Biologické centrum (od r. 2006) Kontakt Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Rok sběru 2022 Elektronická adresa https://doi.org/10.1111/gcb.15797
Počet záznamů: 1