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Earth Science Institute of Orleans, France UMR 6531 of CNRS - University of Orléans Group « Organic Matter in water, sols, sediments and rocks » Personal involved in RECIPE : Fatima Laggoun Laure Comont (PhD student) Jean-Robert Disnar Patrick Albéric (DOC, water chemistry) - PowerPoint PPT Presentation
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Earth Science Institute of Orleans, France UMR 6531 of CNRS - University of OrléansGroup « Organic Matter in water, sols, sediments and rocks »
Personal involved in RECIPE :
Fatima LaggounLaure Comont (PhD student)Jean-Robert Disnar
Patrick Albéric (DOC, water chemistry)Christian Défarge (µmorphology - cryo-SEM)
Nathalie Lottier (GC-MS / Capillary eletrophoresis)Marielle Hatton (C, N, S & palynofacies preparation)
Charquemont, Recipe meeting 23-27th Oct 2003
Appointment of staff and students to RECIPE& relevant problems :
Application for many calls: (i) PhD grants from public Dpts, (ii) Marie Curie post-doc grant (6th Framework Prog.)
Oct. 2001 to Nov. 2002: a PhD student A. Fleury (2 Jura sites)
Oct. 1st 2003: Laure Comont [3 years PhD grant from Research Dpt of Local Adminitr. District (Region Centre)]
Eval. MC grant: C. Applicant: Martin Kainz, Univ Victoria, Canada. Project: Biomolecular source identification of OM in peatland ecosystems (lipid biomarkers, i.e. fatty acid methyl esters)
Philipp Steinmann: invited staff at ISTO in the framework of RECIPE (1 month (April or May 2004) fund from Univ Orleans). Project: (i) porewater sampling by peepers & isotopic analyses of CO2, CH4 and acetates; (ii) Archaea biomarkers .
Charquemont, Recipe meeting 23-27th Oct 2003
Charquemont, Recipe meeting 23-27th Oct 2003
Analysis progress:
Sampling on Oct. 20012 sites in the Jura: Le Russey (France): 5 cores (70 Samples)La Chaux d’Abel (Switzerland): 6 cores (91 Samples)
Analyses:CNS analyses, identification & counting of organic fragments, counting of bacteria, sugar analyses of peat samples and vegetation (8 sphagnum sp., 1 polytrichum, 2 Erioph. sp.).
Participation to congresses:9th Congress of Sedimentology (Oct., 14-16th 2003, Bordeaux)7th Meeting of Soil Study (Oct., 22-24th 2002, Orleans)
ENVIRONMENT PARCELS SAMPLING VEGETATION
FENCA-1 8
CA-2 11
CA-3 6
CA-4 8
CA-5 9
INTACT BOG CA-6 8
CA 3
Numbers of samples
Vegetation, litters (Polytrichum and Sphagnum, erected stems), black litter (Polytrichum), 0-4, 6-8, 15-20, 22-24,
25-30, 33-38, 40-45, 50-55, 57-62, 65-70
Polytrichum and Shagnum fallax
vegetation, less decomposed litter, more decomposed litter, 0-4, 6-10, 10-15, 20-25, 28-31, 37-42, 50-55, 56-58
(a), 58-60 (b), 65-70, 70-75, 75-80
Eriophorum vaginatum and
S.fallax
TRANSITIONAL ZONE
Vegetation, litter, 2-4, 8,5-10,5, 8,5-14, 14-19, 19-25, 25-30, 32-37,
38-43
Transition Polytrichum and less
Shagnum
BOG near intact zone CA-6,
semi-wooded environment
vegetation , 0-3, 3-6 (young litter), 6-10 (sink litter), 10-15 (blonde litter), 15-20, 20-25, 25-30, 30-35, 35-40,
40-43, 43-47
Eriophorum vaginatum and
S.fallax
Vegetation, top, 0-4, 6-10, 4-10, 10-14, 14-20, 20-25, 25-30, 32-37, 40-45, 45-50, 50-55, 55-60, 60-65
Polytrichum and S.fallax
4-10, 10-18, 18-20, 20-23, 26-31, 33-36, 41-45, 48-53, 53-58, 58-62, 63-68, 69-74
High pine forest, near exploited peat (possible drainage
effect)
Sphagnum (desiccated vegetation), 0-5, 7-11, 13-16 cm
Sampling in la Chaux d’Abel
Analyses made in ORLEANS since November 2001Samples/cores Leco/CNS Micromorphol.Anal. Sugars Bacteria counting
Sphagnum X XEriophorum X XPolytrichum X XCore CA XCore CA.1 X X XCore CA.2 X X XCore CA.3 X X XCore CA.4 X X XCore CA.5 X X X XCore CA.6 X X X X
ENVIRONMENT PARCELS SAMPLING VEGETATION
Ry.A 9 (ISTO)
Ry.B 11 (ISTO)
Ry.C S. fallax
Ry.C' Same as Ry C, taken by D.Gilbert S. fallax
Ry.D S. fallax
4 (Estelle)
10 (ISTO)
Ry.E Same as Ry.D, replicates taken by D.Gilbert S. fallax
Ry.F Same as Ry.D, replicates taken by D.Gilbert S. fallax
INTACT 1 ??
5 (Estelle)
9 (ISTO)
INTACT 2 Same
INTACT 3 Replicates taken by D.Gilbert Same
Intact pine forest 18 (ISTO)
Cores taken in November 2001
Complement cores taken in 5 juin
2002Numbers of
samples
Bare peat, tendancy of FEN,
dominance of Eriophorum
angustifolium, less E. vaginatum
Sphagnum (vegetation), litter, 5-10, 15-20, 25-30, 34-38, 42-47, 52-57, 70-75 cm
S.rubellum, S.magellanicum,
P.alpestreVegetation, less decomposed litter, more decomposed litter, 0-3,
3-5, 5-10, 10-15, 15-20, 20-25, 25-30, 30-34, 34-38, 38-42, 42-47, 47-52, 52-57, 60-65 cm
Dominance of S.fallax, more
advanced stage than A
Replicates taken only in the top of the core, same as A et B
More advanced regeneration ?
Lower area, deep peat?
18-23, 28-33, 38-43, 48-53 cm (by Estelle) ; vegetation (+litter), less decomposed litter, more decomposed litter, 0-2, 11-15, 18-23, 25-27, 28-33, 30-33, 38-43, 48-53, 53-58,
58-63, 63-68, 68-73 cm
Higher area with more diversified vegetation
Intact zone ???
15-20, 25-30, 35-40, 45-50, 55-60 cm (par Estelle) ; vegetation, less decomposed litter, 0-4, 8-10, 10-16 (more decomposed
litter), 16-20, 27-32, 36-41, 46-51, 51-56, 56-61, 61-66, 66-71 cm
S.fallax, S.rubellum, Polytrichum, caluna
vulgaris
block and samples: sphagnum, litter, under-litter, litter in catotelme, surface peat
NEW INTACT
eastern area
Vegetation, 0-2, 2-4, 4-8, 10-14, 14-18, 18-22, 25-28, 31-34, 37-40, 43-46, 49-52, 55-58, 61-64, 67-70,
73-76, 79-82, 85-88
Analyses made in ORLEANS since November 2001CORES Leco/CNS Micromorphol. Anal. Sugars Bacteria counting
Ry.A X XRy.B X X XRy.D X X X
Ry.I ?? X X XRy.New Intact X
C/N ratios and microscopic counting Chaux d’Abel/fen (minetrophic zone)-Newly
restauredCA.1 Sphagnum & Polytrichum CA.2 Sphagnum & Eriophorum
C/N ratios and microscopic counting
CA.5 Sphagnum & Polytrichum CA.4 Sphagnum & Eriophorum
Chaux d’Abel/bog (ombrotrophic zone) Newly restaured
Charquemont, Recipe meeting 23-27th Oct 2003
C/N ratios and microscopic counting Chaux d’Abel Intact zone (CA 6)
Charquemont, Recipe meeting 23-27th Oct 2003
Regeneration ?
C/N ratios and microscopic counting (Le Russey) Ry.B – no regeneration
?Ry.D – more advanced
stage
C/N ratios and microscopic counting (Le Russey)Ry.I – Intact peat
Regeneration
Charquemont, Recipe meeting 23-27th Oct 2003
S. rubellum
Rhm
Gal
%
Biomarkers of organic sources
(sugar analyses)
ERIOPHORUMERIOPHORUM
XyloseXyloseArabinoseArabinose
POLYTRICHUMPOLYTRICHUMMannose HMannose H
SPHAIGNESSPHAIGNES
RhamnoseRhamnoseGalactoseGalactose
ERIOPHORUM
Ara
Xyl
%
POLYTRICHUM Man H
%
S. fallax
Rhm
Gal
%
vegetation
Charquemont, Recipe meeting 23-27th Oct 2003
sugar analyses
ERIOPHORUMERIOPHORUM
POLYTRICHUMPOLYTRICHUM
SPHAIGNESSPHAIGNES
XyloseXyloseArabinoseArabinose
Mannose HMannose HRhamnoseRhamnoseGalactoseGalactose
La Chaux d’Abel / bog
- exploited zone
1
2
3
% Arabinose et Xylose
2
Pro
fondeur
(cm
)
% Mannose
3
Pro
fondeur
(cm
)
% Rhamnose et Galactose
1Pro
fondeur
(cm
)
Charquemont, Recipe meeting 23-27th Oct 2003
ERIOPHORUMERIOPHORUM
POLYTRICHUMPOLYTRICHUM
SPHAIGNESSPHAIGNES
XyloseXyloseArabinoseArabinose
Mannose HMannose HRhamnoseRhamnoseGalactoseGalactose
La Chaux d’Abel / INTACT ZONE
% Glucose
Pro
fondeur
(cm
)
1
% Xylose
Pro
fondeur
(cm
)
1
% Man, Ara, Fuc et Rib
Pro
fondeur
(cm
)
2
1
2
sugar analyses
Charquemont, Recipe meeting 23-27th Oct 2003
bacteria counting
Observations x1000 en épifluorescence
50 m
5 m 3 m
Charquemont, Recipe meeting 23-27th Oct 2003
bacteria counting (La chaux d’Abel)
Taille échantillon Taille échantillon de départ de départ
Concentration enConcentration en bactéries/g de bactéries/g de tourbe fraîchetourbe fraîche
BIOMASSEBIOMASSECarboneCarbone
BiovolumeBiovolume
INTACT Zone
Pro
f ondeu
r (c
m)
Pro
f ondeu
r (c
m)
Abondance b/g.ech.sec. Biomasse mgC.g
Pro
fondeu
r (c
m)
Pro
f ondeu
r (c
m)
EXPLOITED Zone
Abondance b/g.ech.sec. Biomasse mgC.g
CA 5 CA 6Charquemont, Recipe meeting 23-27th Oct 2003
Ry.D – Exploited zone
Bacteria counting (Le Russey)
Transition (C/N, %OF)
Regeneration
Charquemont, Recipe meeting 23-27th Oct 2003
Ry.I – Intact zone
Bacteria counting (Le Russey)
Regeneration
Charquemont, Recipe meeting 23-27th Oct 2003
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