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Contribution of Forests and Forestry Mitigation of Greenhouse Effects COST E21, Budapest, Hungary, 25-28 April 2001. The CARBO-AGE project: aims, structure and first results. M. Mencuccini 1 , M. Borghetti 2 , J. Grace 1 , P. Hari 3 , P. Jarvis 1 , A. Lindroth 4 , D. Lousteau 5

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the carbo age project aims structure and first results

Contribution of Forests and Forestry

Mitigation of Greenhouse Effects

COST E21, Budapest, Hungary, 25-28 April 2001

The CARBO-AGE project: aims, structure and first results.

M. Mencuccini1, M. Borghetti2, J. Grace1, P. Hari3, P. Jarvis1, A. Lindroth4, D. Lousteau5

1 Institute of Ecology and Resource Management, University of Edinburgh, Darwin Building, Mayfield Road, EH9 3JU Edinburgh (UK)

2 Dipartimento di Produzione Vegetale – Universita’ della Basilicata, Via Nazario Sauro 85, 85100 Potenza (Italy).

3 Department of Forest Ecology, University of Helsinki, Yliopistonkatu 4, 00014 Helsinki, Finland.

4 Institutionen för Naturgeografi, Lunds Universitet, Paradisgatan 5c, 22100 Lund (Sweden).

5 Institut National de la Recherche Agronomique, Unite’ de Recherches Forestieres de Bordeaux, Domaine de l’Hermitage, Route d’Arcachon, 33611 Gazinet (France).

carboeurope a cluster of projects to understand and quantify the carbon balance of europe
CarboEurope A cluster of projects to understand and quantify the carbon balance of Europe

Funded by EU DG Research:

Vth Framework Programme

Key Action: Global Change,

Climate and Biodiversity

http://www.bgc-jena.mpg.de/public/carboeur

carbo age partners
CARBO-AGE partners

1. University of Edinburgh (UK)

(Grace, Mencuccini, Jarvis & Moncrieff)

2. Universita della Basilicata (Italy)

(Borghetti & Magnani)

3. University of Helsinki (Finland)

(Hari, Berninger, Ilvesniemi, Makeka, Nikinma, Nissinen, Vesala)

4. Lund University (Sweden)

(Lindroth, Grelle & Lankreijer)

5. INRA-Centre de Bordeaux (France)

(Loustau, Trichet, Berbigier, Dewar, Bert, Danjon & Arrouays)

location of carbo age chronosequences

Swedish

chronosequence

Finnish

chronosequence

Age

: 0 to 100 years;

Age

: 0 to 100 years

Species

: Scots pine/Norway spruce;

Species

: Scots pine;

Climatic zone

: southern boreal;

Climatic zone

: Boreal;

Soils

: glacial till;

Soils

:

podsols;

Level of NPP

: medium.

Level of NPP

: medium to low.

Scottish

chronosequence

Age

: 0 to 40 years;

Species

Sitka spruce;

Climatic zone

: temperate;

Soils

: surface water

gleys;

Level of NPP

: very high.

French

chronosequence

More chronosequences

In FORCAST

Age

: 0 to 60 years

Species

: Maritime pine;

Climatic zone

: Atlantic maritime;

Soils

:

spodic sands;

Level of NPP

: medium to high.

Italian

chronosequences

Age

: 0 to 60 and 0 to 20 years

Species

: Maritime pine; Turkey oak.

Climatic zone

: Mediterranean;

Soils

:

podsolised marine sands;

Level of NPP

: low to medium.

Location of CARBO-AGE chronosequences

:

carbo age age related dynamics of carbon exchange in european forests
CARBO-AGE: Age-related dynamics of carbon exchange in European forests

What are the aims of the project?

  • To understand carbon budgets over the whole life cycle of forests
  • To include periodic disturbances as a result of management practices, e.g., clearfelling.
  • Why is the project innovative?
  • C-flux studies of forests have mostly focussed on middle-aged stands
  • C-stock inventories have often neglected the soil.
major selection criteria for the chronosequences
Major selection criteria for the chronosequences
  • Homogeneity in:

a)   Underlying geological formation

b)  Climate

c)   Soil type

d)  History of management

  • Surface area of ~50 ha for each age class
  • Flat topography (although not necessarily level)
  • Access to mains power
slide7

: Start of project

: Duration

: Deliverables

: Links between

deliverables

CARBO-AGE PROJECT 1999-2002

Age-related dynamics of carbon exchange in European forests.

WORKPACKAGES AND DELIVERABLES

1999

2000

2001

2002

9 10 11 12

1 2 3 4

9 10 11 12

1 2 3 4

5 6 7 8

9 10 11 12

1 2 3 4

5 6 7 8

9 10 11 12

5 6 7 8

WP 1: Changes in carbon stocks over time.

WP 2: Carbon fluxes over time.

WP 3: Soil respiration.

WP 4: Modelling of the NEP and NPP dynamics.

WP 5: Post-Kyoto scenarios (ex Art. 3.3 and 3.4).

WP 6: Briefing notes. News reports.

slide8

CARBO-AGE

Work-package 1: Carbon stocks over time

Deliverable: data base of C-storage in five

chronosequences throughout Europe

carbon balance across a chronosequence

NEE

Pf

Rf

AG

DAG

Ar

Rw

Dr

Rh

Rr

BG

S

Dex

Carbon balance acrossa chronosequence

Eddy Covariance

  • CO2 and H2O concentration fluctuations
  • wind speed and direction
slide10

CARBO-AGE

Workpackage 2: Ecosystem carbon fluxes over time

Measure fluxes within chronosequences, using eddy covariance in the ‘paired tower’ approach.

Deliverable:

Half-hourly flux data, extending the CARBOEUROFLUX data base, and enabling testing of models of the stand life-cycle.

slide11

CARBO-AGE

Workpackage 3: Soil respiration over time

  • Measure and model the soil CO2 fluxes along the age sequences.
  • Separate heterotrophic and autotrophic respiration.

Deliverable:

Fluxes of carbon from the soil, as a function of environmental variables; an archive of CO2 and SOM for isotopic analysis.

slide12

CARBO-AGE

  • Workpackage 4: Modelling age-related changes
  • in NPP and NEP
  • Test existing NPP/NEP models in long-term (100 year)
  • periods; improve them.
  • Use models to define optimal rotational/management
  • of the forest for carbon fixation
  • Deliverables: Reliable NPP/NEP models, tables and
  • recommendations for practitioners.
slide13

CARBO-AGE

Workpackage 5: Post-Kyoto scenarios and regional

scale predictions

Develop (model) products for the internet,

to estimate changes in carbon sequestration

resulting from changes in age structure

(response to harvesting) and afforestation.

Deliverable: an internet-based forest carbon simulator

with data base.

slide14

CARBO-AGE

Workpackage 6: Communication with media and

policy-makers

Periodic Briefing Notes to media and stakeholders

Meetings and workshops on carbon budgets

Training courses for consultancy companies

and other stakeholders

New Accompanying Measure:

CARBOEUROPE:

Coordination and dissemination

of carbon research in light of the

implementation of the Kyoto

Protocol in Europe.

major results since march 2000
Major results since March 2000
  • Created research facilities at all sites (eddy flux towers, automatic soil CO2 efflux system, met stations)
  • Characterised the sites (soil profiles, ground vegetation, forest history and management)
  • Basic stand measurements (diameter, height, density, leaf area index)
  • First-year results
slide16

Diurnal courses of CO2 exchange in clearfells and mature stands

(Hyytiala, Finland)

(Harwood, UK)

daily averages of co 2 flux from the clearfell at bilos france
Daily averages of CO2 flux from the clearfell at Bilos (France)

Carbon and water fluxes in the stands of age 1 and 9 (after coppicing) at Rocca (Italy) (27 September – 26 October 2000).

__________________________________________________

Age 1 Age 9

__________________________________________________

H (diurnal time), W m-2 56.7 56

E (diurnal time), W m-2 47.3 59.7

FC (diurnal time), mmol m-2 s-1 -0.33 -4.58

FC (daily integrated), g C m-2 day-1 1.54 -1.53

slide18

NEE

Pf

Rf

AG

DAG

Ar

Rw

Dr

Rh

Rr

BG

S

Dex

Can weclose the budget?

AG