Počet záznamů: 1
Ecosystem transpiration and evaporation: Insights from three water flux partitioning methods across FLUXNET sites
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SYSNO ASEP 0536058 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Ecosystem transpiration and evaporation: Insights from three water flux partitioning methods across FLUXNET sites Tvůrce(i) Nelson, J. A. (US)
Perez-Priego, O. (AU)
Zhou, S. (US)
Poyatos, R. (ES)
Zhang, Y. (US)
Blanken, P. D. (US)
Gimeno, T. E. (ES)
Wohlfahrt, G. (AT)
Desai, A. R. (US)
Gioli, B. (IT)
Limousin, J.-M. (FR)
Bonal, D. (FR)
Paul-Limoges, E. (CH)
Scott, R. L. (US)
Varlagin, A. (RU)
Fuchs, K. (DE)
Montagnani, L. (IT)
Wolf, S. (DE)
Delpierre, N. (FR)
Berveiller, D. (FR)
Gharun, M. (CH)
Belelli Marchesini, L. (IT)
Gianelle, D. (IT)
Šigut, Ladislav (UEK-B) RID, ORCID, SAI
Mammarella, I. (FI)
Siebicke, L. (DE)
Andrew Black, T. (CA)
Knohl, A. (DE)
Hoertnagl, L. (CH)
Magliulo, V. (IT)
Besnard, S. (DE)
Weber, U. (DE)
Carvalhais, N. (DE)
Migliavacca, M. (IT)
Reichstein, M. (DE)
Jung, M. (DE)Celkový počet autorů 36 Zdroj.dok. Global Change Biology. - : Wiley - ISSN 1354-1013
Roč. 26, č. 12 (2020), s. 6916-6930Poč.str. 15 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova use efficiency ; sap-flow ; eddy-covariance ; carbon-dioxide ; cloud shadow ; evapotranspiration ; forest ; time ; assimilation ; respiration ; ecohydrology ; eddy covariance ; evaporation ; evapotranspiration ; fluxnet ; transpiration Vědní obor RIV EH - Ekologie - společenstva Obor OECD Biodiversity conservation CEP LM2015061 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy EF16_019/0000797 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Open access Institucionální podpora UEK-B - RVO:86652079 UT WOS 000575306700001 EID SCOPUS 85092098496 DOI 10.1111/gcb.15314 Anotace We apply and compare three widely applicable methods for estimating ecosystem transpiration (T) from eddy covariance (EC) data across 251 FLUXNET sites globally. All three methods are based on the coupled water and carbon relationship, but they differ in assumptions and parameterizations. Intercomparison of the three dailyTestimates shows high correlation among methods (Rbetween .89 and .94), but a spread in magnitudes ofT/ET (evapotranspiration) from 45% to 77%. When compared at six sites with concurrent EC and sap flow measurements, all three EC-basedTestimates show higher correlation to sap flow-basedTthan EC-based ET. The partitioning methods show expected tendencies ofT/ET increasing with dryness (vapor pressure deficit and days since rain) and with leaf area index (LAI). Analysis of 140 sites with high-quality estimates for at least two continuous years shows thatT/ET variability was 1.6 times higher across sites than across years. Spatial variability ofT/ET was primarily driven by vegetation and soil characteristics (e.g., crop or grass designation, minimum annual LAI, soil coarse fragment volume) rather than climatic variables such as mean/standard deviation of temperature or precipitation. Overall,TandT/ET patterns are plausible and qualitatively consistent among the different water flux partitioning methods implying a significant advance made for estimating and understandingTglobally, while the magnitudes remain uncertain. Our results represent the first extensive EC data-based estimates of ecosystemTpermitting a data-driven perspective on the role of plants' water use for global water and carbon cycling in a changing climate. Pracoviště Ústav výzkumu globální změny Kontakt Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Rok sběru 2021 Elektronická adresa https://onlinelibrary.wiley.com/doi/10.1111/gcb.15314
Počet záznamů: 1