scholarly journals Radiocarbon content and stable carbon isotopic ratios of individual fatty acids in subsurface soil: Implication for selective microbial degradation and modification of soil organic matter

2007 ◽  
Vol 41 (6) ◽  
pp. 483-492 ◽  
Author(s):  
KOHEI MATSUMOTO ◽  
KIMITAKA KAWAMURA ◽  
MASAO UCHIDA ◽  
YASUYUKI SHIBATA
Keyword(s):  
Fatty Acids ◽  
Organic Matter ◽  
Soil Organic Matter ◽  
Microbial Degradation ◽  
Isotopic Ratios ◽  
Stable Carbon ◽  
Carbon Isotopic ◽  
Subsurface Soil

Assessment of vegetation change and landscape variability by using stable carbon isotopes of soil organic matter

2005 ◽  
Vol 53 (7) ◽  
pp. 651 ◽  
Author(s):  
Evelyn G. Krull ◽  
Steven S. Bray
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Vegetation Change ◽  
Stable Carbon Isotopes ◽  
Vegetation History ◽  
Statistical Significance ◽  
Aerial Photographs ◽  
Stable Carbon ◽  
Carbon Isotopic ◽  
Landscape Variability

Stable carbon isotopic (δ13C) analyses of soil organic matter (SOM) have been used in the past to characterise C3–C4 vegetation changes. However, the temporal and spatial resolution of these isotopic data are not well established. Here, we present data from δ13C analyses of whole and size-separated SOM, which are discussed in conjunction with organic (total organic carbon (TOC) content) and inorganic (%clay) soil data. These data are put into context with the current vegetation state (assessed from tree size-class distribution) and the 50-year vegetation history (assessed from aerial photographs). By linking below- and above-ground datasets, we show that δ13C analyses of SOM can accurately record vegetation-change histories over short- (10 and 50years) and longer-term (hundreds of years) time scales. Our data also show that spatial variability was relatively small for the clay TOC content but was much larger for δ13C data, indicating that the number of soil cores required for statistical significance is highly dependent on the kind of measurements intended. Finally, interpretation of δ13C data from SOM to assess the history of C3–C4 vegetation change is complicated by the inherent 13C-enrichment of SOM, owing to decomposition processes, which occurs regardless of vegetation change. We suggest a method for distinguishing 13C-enrichment of SOM that is due to soil-inherent (decomposition-related) processes from 13C-enrichment that is due to increased inputs of C4 organic matter.

scholarly journals The chronology of Jäkärlä Ware – Bayesian interpretation of the old and new radiocarbon dates from Early and Middle Neolithic southwest Finland

2019 ◽  
Vol 46 ◽  
pp. 246-267
Author(s):  
Petro Pesonen ◽  
Markku Oinonen
Keyword(s):  
Isotopic Ratios ◽  
Stable Carbon ◽  
Radiocarbon Dates ◽  
Reservoir Effect ◽  
Carbon Isotopic ◽  
Potential Reservoir

The chronology of the eastern Fennoscandian Neolithic is organized with the help of pottery styles, one of which is southwestern Finnish Jäkärlä Ware. In this paper a number of new radiocarbon dates connected with Jäkärlä Ware and other relevant ceramic groups are presented and discussed. The radiocarbon dates of each group are modelled within a Bayesian chronological framework. Also, the potential reservoir effect in charred crust dates is estimated for each date based on stable carbon isotopic ratios of the crust samples and incorporated into models. Jäkärlä Ware appears to be a short-living and quite a isolated group, which had no chronological contacts with Sperrings 1–2 Wares, but with possible coexistence with Middle Neolithic Typical Comb Ware. Jäkärlä Ware is partly simultaneous with eastern Finnish asbestos-tempered Kaunissaari Ware, and forms with it a short chronological horizon in the turn of the Early and Middle Neolithic of eastern Fennoscandia.

scholarly journals Carbon isotopic signatures of soil organic matter correlate with leaf area index across woody biomes

2014 ◽  
Vol 102 (6) ◽  
pp. 1606-1611 ◽  
Author(s):  
Brenton Ladd ◽  
Pablo L. Peri ◽  
David A. Pepper ◽  
Lucas C. R. Silva ◽  
Douglas Sheil ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Leaf Area Index ◽  
Leaf Area ◽  
Area Index ◽  
Isotopic Signatures ◽  
Carbon Isotopic

Compound-specific stable carbon isotopic detection of pig product processing in British Late Neolithic pottery

Antiquity ◽  
2007 ◽  
Vol 81 (313) ◽  
pp. 743-754 ◽  
Author(s):  
Anna J. Mukherjee ◽  
Robert Berstan ◽  
Mark S. Copley ◽  
Alex M. Gibson ◽  
Richard P. Evershed
Keyword(s):  
Fatty Acids ◽  
Stable Carbon ◽  
Late Neolithic ◽  
Carbon Isotopic ◽  
Prehistoric Pottery ◽  
Ruminant Animals ◽  
Neolithic Pottery

By extracting lipids from potsherds and determining the δ13C of the most abundant fatty acids, degraded fats from ruminant animals, such as cattle, and non-ruminant animals, such as pigs, can be distinguished. The authors use this phenomenon to investigate Late Neolithic pig exploitation and find that the pig ‘signature’ was more frequently found among residues from Grooved Ware than other prehistoric pottery types.

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