RECIPE meetingJune 5-6Th Tampere,

FINLAND

Group « Organic Matter in water, sols, sediments and rocks  »

« Earth Science Institute of Orleans », France UMR 6531 of CNRS – University of Orleans

Institut des Sciences de la Terre d’Orléans:ISTO

Analyses made in Orleans since November 2003

Site Country

Situation-CoreReplica

teLeco/CNS

Micromorpho.analyses

Frottis Observation

Wet sievin

g

Sugars

LE RUSSE

Y

Jura

France

Bare peat

FR A

1 X X    

2  X X      

3  X X  X X   X

1st regeneration stage

FR B

1  X X      

2  X X      

3  X X      

2nd regeneration

stage FR C

1  X X      

2  X X      

3  X X   X   

Intact area

FR D

1  X X      

2  X X  X X   

3  X X      

Analyses made in Orleans since November 2003

Site Country

Situation-Core

Replicate

Leco/CNS

Micromorpho.analyses

Frottis Observation

Wet sievin

g

Sugars

LA CHAUXD’ABEL

Jura

Switzerland

Fen

CH A

1 X

2 X    

3  X   X   

4  X      

Transition area

CH B

1 X

2  X      

3  X    

4  X      

BogCH C

1 X

2  X   X   

3  X      

4  X    

Intact area

CH D

1  X   X   

2  X    

3  X    

Analyses made in Orleans since November 2003

Site Country

Situation-Core

Replicate

Leco/CNS

Micromorpho.analyses

Frottis Observation

Wet sievin

g

Sugars

BAUPTE

Cotentin

France

Peat Eriophorum angustifoliu

m

FB A

1 X X X   

2  X X     

3  X X     

Bare peat

FB B

1  X X     

2  X X     

3  X X  X   

VEGETATION

2 samples Eriophorum vaginatum (stems+leaves) & roots)

X

Eriophorum angustifolium X

Carex rostrata (stems + leaves) X

2 samples Polytrichum (stems + leaves) & (rhizoids)

X

Sugars

Analyses made in Orleans since November 2003

Site Country

Situation-Core

Replicate

Leco/CNS

Micromorpho.analyses

Frottis Observation

Wet sievin

g

Sugars

SCOTLAND

Bare peat

SC A

1 X    

2  X      

3  X    

1st regeneration stage

SC B

1  X      

2  X      

3  X X   X   

2nd regeneration stage

SC C

1  X      

2  X      

3  X      

Mixed vegetation

SC D

1  X      

2  X      

3  X      

Analyses made in Orleans since November 2003

Site Country

Situation-Core

Replicate

Leco/CNS

Micromorpho.analyses

Frottis Observation

Wet sievin

g

Sugars

FINLAND

Wet peatE.vaginatum

FI A

1 X

2 X X X

3 X

Dry peatE.vaginatum

FI B

1 X X X  

2  X      

3  X    

Wet peatC.rostrata

FI C

1  X      

2  X X   X   

3  X      

Wet peatS.fallaxFI D

1  X      

2  X      

3  X      

Bare peatFI E

1  X      

2  X      

3  X X   X   

Bulk analyses - C/N ratios LE RUSSEY

Bare peat: FR A 1st regen.stage: FR B

Bulk analyses - C/N ratios LE RUSSEY

2nd regen.stage: FR C Intact area: FR D

Bulk analyses - Microscopic counting

Bare peat: FR A Intact area: FR D

LE RUSSEY

C/N C/N

Wet sieving (200 µm) Experiment

(Gobat J.-M, Grosvernier P., Matthey Y. and Buttler A., 1991)

→Grain size > 200µm: 48 h at 105°C

→Grain size < 200µm & > 50µm: 48 h at 105°C

→Grain size < 50µm: decantation and centrifugation

DOC

Grain size <200µm - C/N ratiosLE RUSSEY

FRA replicate 3

bare peat

FRC replicate 3 2nd regen.stage

FRD replicate 2

intact area

Total sugar content: Cyperaceae (Eriop.+Carex) ≈ 282 à 350 mg/g sample Mosses (Polyt+Sphagnum) ≈ 360 à 410 mg/g sample

Sugar analyses Biomarkers of organic sources

ArabinoseXyloseCyperaceae

MannosePolytrichum

GalactoseRhamnoseSphagnum

FR A replicate 3 (<200µm)Total sugars (mg/g) Total cellulosics (mg/g)

depth (cm)

Sugar analyses

Bulk analyses - C/N ratiosLa CHAUX D’ABEL

Fen: CH A Transition area: CH B

Bulk analyses - C/N ratiosLa CHAUX D’ABEL

Bog: CH C Intact area: CH D

Bulk analyses - C/N ratios BAUPTE

Peat with E.angustifolium: FB A Bare peat: FB B

Bulk analyses - C/N ratios SCOTLAND

Bare peat: SC A 1st regen.stage, Sphagnum: SC B

Bulk analyses - C/N ratios SCOTLAND

2nd regen.stage: SC C E.Angustifolium & few vaginatum

Mixed vegetation: SC DSphagnum,Polytrichum, Molinie & Calune

Bulk analyses - C/N ratios FINLAND

Wet peat, E.vaginatum: FI A Dry peat, E.vaginatum: FI B

Bulk analyses - C/N ratios FINLAND

Wet peat, C.rostrata: FI C Bare peat: FI E

Grain size <200µm - C/N ratiosLa CHAUX D’ABEL

CHA replicate 2

fen

CHC replicate 1

bog

CHD replicate 1

Intact area Bulk Bulk Bulk

Grain size <200µm - C/N ratiosBAUPTE

FBA replicate 1

peat+E.angust.

FBB replicate 3

bare peat Bulk Bulk

RyInvx = FR D

depth (cm)

Sugar analyses

Total sugars (mg/g)Total cellulosics (mg/g)

Numbers of samples in Orleans

MISSING SAMPLES: slice 3 (0-5cm), slice 4 (5-10cm), slice 5 (12.5-17.5cm)

Le Russey: - 1st regeneration stage: FRB 31, FRB 32, FRB 33 - 2nd regeneration stage: FRC 31, FRC 41, FRC 32, FRC 33 - Intact area: FRD 31, FRD 41, FRD 32, FRD 33

La Chaux d’Abel: - fen: CHA 31, CHA 51, CHA 33, CHA 34 - transition area: CHB 31, CHB 32, CHB 43 - bogs: CHC 32, CHC 42, CHC 33, CHC 34 - Intact area: CHD 31, CHD 41, CHD 32, CHD 42, CHD 33, CHD 43

Baupte: - peat Eriophorum angustifolium: FBA 33

11

17

1

Initially: 198 samples [6 slices (15CH + 12FR + 6FB)] → 169