CARBON AND HYDROGEN ISOTOPE VARIATION OF PLANT BIOMARKERS IN A PLANT-SOIL SYSTEM
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dc.contributor.author | Chikaraishi Y. | |
dc.contributor.author | Naraoka H. | |
dc.date.accessioned | 2024-09-03T09:56:23Z | |
dc.date.available | 2024-09-03T09:56:23Z | |
dc.date.issued | 2006 | |
dc.identifier | https://www.elibrary.ru/item.asp?id=31323608 | |
dc.identifier.citation | Chemical Geology, 2006, 231, 3, 190-202 | |
dc.identifier.issn | 0009-2541 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/44862 | |
dc.description.abstract | Stable carbon (δ13C) and hydrogen (δD) isotopic compositions of n-alkanes, anteiso-alkanes, n-alkanoic acids, n-alkanols, phytol and sterols in raw leaves of Acer argutum and Acer carpinifolium, their fallen leaves, mold and soils from a natural Acer forest were measured in order to: (1) understand isotopic variation of the plant biomarkers in a plant-soil system and (2) evaluate which biomarker is the most effective recorder of soil vegetation. Long-chain (> C24) n-alkanes, n-alkanoic acids and n-alkanols are gradually enriched in 13C up to 12.9‰ (average of 4.3‰) and depleted in D up to 94‰ (average of 55‰) from raw leaves to soils. However, anteiso-alkanes, phytol and sterols show little variation in both δ13C (< ± 1‰) and δD (< ± 2‰) from raw leaves to soils. These isotope signatures in a plant-soil system indicate that isoprenoid plant biomarkers such as sterols in soils faithfully preserve the isotopic compositions of dominant higher plants growing on the soils without a diagenetic effect upon the isotopic compositions. In contrast, long-chain n-alkyl molecules in soils undergo specific isotopic modification during biodegradation associated with early diagenesis and/or a significant contribution from heterotrophic reworking. © 2006 Elsevier B.V. All rights reserved. | |
dc.subject | CARBON ISOTOPIC COMPOSITION | |
dc.subject | DIAGENETIC EFFECT | |
dc.subject | HYDROGEN ISOTOPIC COMPOSITION | |
dc.subject | PLANT BIOMARKER | |
dc.subject | PLANT-SOIL SYSTEM | |
dc.title | CARBON AND HYDROGEN ISOTOPE VARIATION OF PLANT BIOMARKERS IN A PLANT-SOIL SYSTEM | |
dc.type | Статья | |
dc.identifier.doi | 10.1016/j.chemgeo.2006.01.026 |
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