The straight-chain lipid biomarker composition of plant species responsible for the dominant biomass production along two altitudinal transects in the Ecuadorian Andes

Jansen, Boris; Nierop, Klaas G.J.; Hageman, Jos A.; Cleef, A.M.; Verstraten, J.M.

doi:10.1016/j.orggeochem.2006.06.018

Cited by 135 publications

(101 citation statements)

References 21 publications

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“…The observed variation in patterns and concentrations is in line with the variation found in other species in previous work (e.g. Jansen et al, 2006). …”

Section: Extraction and Analysis Of The Biomarkerssupporting

confidence: 92%

“…The extraction temperature was 75 • C and the extraction pressure 17 × 106 Pa, employing a heating phase of 5 min and a static extraction time of 20 min. Dichloromethane/methanol (DCM / MeOH) (93 : 7 v/v) was used as the extractant (Jansen et al, 2006). The extracts were subsequently fractionated into three fractions containing the n-alkanes, the esters and the combination of alcohols and fatty acids respectively.…”

Section: Extraction and Analysis Of The Biomarkersmentioning

confidence: 99%

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The added value of biomarker analysis to the genesis of plaggic Anthrosols; the identification of stable fillings used for the production of plaggic manure

Mourik

Wagner

Boer

et al. 2016

SOIL

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Abstract. Plaggic Anthrosols are the result of historical forms of land management in cultural landscapes on chemically poor sandy substrates. Application of plaggic manure was responsible for the development of the plaggic horizons of these agricultural soils. Pollen diagrams reflect aspects of the environmental development but the interpretation of the pollen spectra is complicated due to the mix of the aeolian pollen influx of crop species and species in the surroundings, and of pollen occurring in the used stable fillings. Pollen diagrams and radiocarbon dates of plaggic Anthrosols suggested a development period of more than a millennium. Calluna is present in almost all the pollen spectra, indicating the presence of heath in the landscape during the whole period of soil development. Optically stimulated luminescence dating of the plaggic horizon made clear that the deposition of plaggic covers started in the 16th century and accelerated in the 18th century. The stable fillings, used for the production of plaggic manure and responsible for the rise of the soil surface, cannot be identified with pollen diagrams alone. Biomarker analyses provide more evidence about the sources of stable fillings. The oldest biomarker spectra of the plaggic horizons of three typical plaggic Anthrosols examined in this study were dominated by biomarkers of forest species such as Quercus and Betula while the spectra of middle part of the plaggic horizons were dominated by biomarkers of stem tissue of crop species such as Secale and Avena. Only the youngest spectra of the plaggic horizons were dominated by biomarkers of Calluna. This indicates that the use of heath sods as stable filling was most likely introduced very late in the development of the Anthrosols. Before the 19th century the mineral component in plaggic manure cannot be explained by the use of heath sods. We conclude that other sources of materials, containing mineral grains must have been responsible for the raise of the plaggic horizon.

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“…The observed variation in patterns and concentrations is in line with the variation found in other species in previous work (e.g. Jansen et al, 2006). …”

Section: Extraction and Analysis Of The Biomarkerssupporting

confidence: 92%

Section: Extraction and Analysis Of The Biomarkersmentioning

confidence: 99%

The added value of biomarker analysis to the genesis of plaggic Anthrosols; the identification of stable fillings used for the production of plaggic manure

Mourik

Wagner

Boer

et al. 2016

SOIL

Self Cite

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show abstract

“…(Jansen et al, 2006a). The extracts were pre-treated and derivatized with BSTFA (N,O-bis(trimethylsilyl) trifluoroacetamide) containing 1% TMCS (trimethylchlorosilane) following a previously described protocol (Jansen et al, 2006b). Sample analysis took place on a ThermoQuest Trace GC 2000 gas chromatograph connected to a Finnigan Trace quadrupole mass spectrometer (MS), Separation took place by oncolumn injection of 1.0 µl of the derivatized extracts on a 30 m Rtx-5Sil MS column (Restek) with an internal diameter of 0.25 mm and film thickness of 0.1 µm, using He as a carrier gas.…”

Section: Biomarker Analysismentioning

confidence: 99%

“…Subsequent MS detection in full scan mode used a mass-to-charge ratio (m/z) of 50-650 with a cycle time of 0.65 s and followed electron impact ionization (70 eV). The n-alkanes and n-alcohols were identified by their mass spectra and retention times and quantified using a deuterated internal standard (d 42 -n-C 20 alkane and d 41 -n-C 20 alcohol) (Jansen et al, 2006b). The concentrations of n-alkanes and n-alcohols with carbon numbers 20-36 in vegetation and soil samples were subsequently used as input for the VERHIB model that was specifically designed to translate such biomarker patterns into the most likely past vegetations patterns (Jansen et al 2010).…”

Section: Biomarker Analysismentioning

confidence: 99%

Geochronology of Soils and Landforms in Cultural Landscapes on Aeolian Sandy Substrates, Based on Radiocarbon and Optically Stimulated Luminescence Dating (Weert, SE-Netherlands)

Mourik¹,

Seijmonsbergen²,

Jansen³

2012

Radiometric Dating

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“…The δ 13 C values have previously been used to develop understanding of erosional processes [Nadeu et al, 2012] including their ability to differentiate between SOC derived from C 3 or C 4 sources in southwestern U.S. drylands [Puttock et al, 2012]. Additionally, the compound-specific signatures of long-chain n-alkanes (aliphatic hydrocarbons) from leaf waxes have been used to differentiate between inputs from woody or grassland species into soils [Eglinton et al, 1962;Jansen et al, 2006]. It has been shown that large amounts of n-alkanes with a hydrocarbon chain length of 31 (C 31 ) often indicate a grass source [Eckmeier and Wiesenberg, 2009], while the shorter C 27 is commonly indicative of a woody source [Zech et al, 2009].…”

Section: Introductionmentioning

confidence: 99%

Woody plant encroachment into grasslands leads to accelerated erosion of previously stable organic carbon from dryland soils

et al. 2014

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Drylands worldwide are experiencing rapid and extensive environmental change, concomitant with the encroachment of woody vegetation into grasslands. Woody encroachment leads to changes in both the structure and function of dryland ecosystems and has been shown to result in accelerated soil erosion and loss of soil nutrients. Covering 40% of the terrestrial land surface, dryland environments are of global importance, both as a habitat and a soil carbon store. Relationships between environmental change, soil erosion, and the carbon cycle are uncertain. There is a clear need to further our understanding of dryland vegetation change and impacts on carbon dynamics. Here two grass-to-woody ecotones that occur across large areas of the southwestern United States are investigated. This study takes a multidisciplinary approach, combining ecohydrological monitoring of structure and function and a dual-proxy biogeochemical tracing approach using the unique natural biochemical signatures of the vegetation. Results show that following woody encroachment, not only do these drylands lose significantly more soil and organic carbon via erosion but that this includes significant amounts of legacy organic carbon which would previously have been stable under grass cover. Results suggest that these dryland soils may not act as a stable organic carbon pool, following encroachment and that accelerated erosion of carbon, driven by vegetation change, has important implications for carbon dynamics.

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The straight-chain lipid biomarker composition of plant species responsible for the dominant biomass production along two altitudinal transects in the Ecuadorian Andes

Cited by 135 publications

References 21 publications

The added value of biomarker analysis to the genesis of plaggic Anthrosols; the identification of stable fillings used for the production of plaggic manure

The added value of biomarker analysis to the genesis of plaggic Anthrosols; the identification of stable fillings used for the production of plaggic manure

Geochronology of Soils and Landforms in Cultural Landscapes on Aeolian Sandy Substrates, Based on Radiocarbon and Optically Stimulated Luminescence Dating (Weert, SE-Netherlands)

Woody plant encroachment into grasslands leads to accelerated erosion of previously stable organic carbon from dryland soils

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