2024
Organic and inorganic carbon storage in riparian zones of Central European rivers – A comparison of methods for their determination
BABEJ, Ján, Rostislav ČERVENKA, Jan KUTA, Karel BRABEC, Zdeněk MÁČKA et. al.Základní údaje
Originální název
Organic and inorganic carbon storage in riparian zones of Central European rivers – A comparison of methods for their determination
Autoři
BABEJ, Ján (703 Slovensko), Rostislav ČERVENKA (203 Česká republika, domácí), Jan KUTA (203 Česká republika, domácí), Karel BRABEC (203 Česká republika, domácí) a Zdeněk MÁČKA (203 Česká republika, domácí)
Vydání
Quaternary International, Elsevier Ltd, 2024, 1040-6182
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10511 Environmental sciences
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 2.200 v roce 2022
Organizační jednotka
Přírodovědecká fakulta
UT WoS
001168024300001
Klíčová slova anglicky
Calcimeter; Carbon; Dry combustion; Loss on ignition; Organic matter; Walkley–Black method
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 8. 3. 2024 08:42, Mgr. Marie Šípková, DiS.
Anotace
V originále
Increasing interest in carbon storage and fluxes in river systems opens space for comparison of methods for the determination of total organic carbon (TOC) and inorganic carbon (TIC) in soil/sediment samples. We analysed 150 soil (leptosols and fluvisols) and sediment samples from three rivers using methods mostly used in studies. Widely used dry combustion method (with CO2 detection) for determination of TOC and TIC was compared with other methods for determination TOC (modified Walkley–Black method), total organic matter (TOM determined by loss on ignition) and TIC (calcimeter, loss on ignition). Furthermore, we proposed a procedure for calculation TOC from TOM together with relative standard deviation resulting from this conversion. Our results showed that the modified Walkley–Black method provides almost identical results of TOC as dry combustion and therefore can be used as an alternative method for the determination of TOC. A strong correlation was found between TOC and TOM (R2 = 0.97 for both methods for determination TOC). The mean relative deviation of TOC values resulting from calculation TOC based on TOM varied between 10.1% and 14.5%. Thus, the calculation TOC from TOM is possible, but only with deviations referred to above. We suggest that for samples with TOM values below 1%, the TOC values cannot be reliably calculated, and in this case, the dry combustion or modified Walkley–Black method must be used for TOC determination. TIC values determined by the three methods vary to a greater extent than those of organic carbon. We assume that in the case of low TIC content (below 1%), various methods can give markedly different results. Due to the higher relative standard deviation in case of dry combustion, it is probably better to use a calcimeter for the determination of TIC in samples with TIC content below 1%.
Návaznosti
EF17_043/0009632, projekt VaV |
| ||
LM2023069, projekt VaV |
| ||
MUNI/A/1323/2022, interní kód MU |
| ||
857560, interní kód MU (Kód CEP: EF17_043/0009632) |
| ||
90248, velká výzkumná infrastruktura |
|