A tool for economic valuation of ecosystem services in flanders
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A Tool for Economic Valuation of Ecosystem Services in Flanders. Sara Ochelen – Flemish Ministry of Environment, Nature and Energy. Cost benefit analysis for better informed decisions. Intended new policy or new project Society better off with or without? A or B?

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A Tool for Economic Valuation of Ecosystem Services in Flanders

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A tool for economic valuation of ecosystem services in flanders

A Tool for Economic Valuation of Ecosystem Services in Flanders

Sara Ochelen – Flemish Ministry of Environment, Nature and Energy


Cost benefit analysis for better informed decisions

Cost benefit analysis for better informed decisions

  • Intended new policy or new project

  • Society better off with or without? A or B?

  • Cost Benefit Analysis: all welfare effects, in EUR.

  • Better informed decisions IF also impacts on ecosystems included.

  • Need to quantify the impact on ecosystem and to price the change in the services they deliver.

  • No figures for impacts on ecosystems available.

  • Team of economists and ecologists filled this gap: VITO, University of Antwerp, Free University of Amsterdam.

  • Toolkit for valuation of ESS.


Cultural and regulating services

Cultural and regulating services

  • Cultural ecosystem services:

    • Value of recreation (use);

    • Value of existence and preserving nature for future generations (non-use).

  • Regulating services:

    • Nutrient removal and stock of N & P;

    • Climate regulation by C-capture in biomass and soil;

    • Improving air quality by capturing polluents as PM10;

    • Noise buffer by forests.

      Tool: handbook and supporting on-line calculator for valuation of ecosystem services.


Value of cultural services

Value of cultural services

  • No prices  economic valuation techniques.

  • Expensive and time consuming.

  • We want ready-to-use formula for many cases.

  • Valuation function developed with empirical data.

  • Reveal value of people by asking them questions.

  • Choice experiment: sophisticated questionnaire: multiple pretests, representative sample, rigourous statistical analysis of results…

  • Interviewed 3000 people in Flanders with choice cards.


Choice cards to reveal wtp

Choice cards to reveal WTP


Valuation function

Valuation function

  • All answers pooled: wealth of information about preferences of people for nature.

  •  WTP of average household in function of: nature characteristics, population characteristics and distance.

  • Forest > heath land > natural grassland.

  • Available trails > no trails.

  • Members NGO > non members.

  • Close to home > far away.


Apply valuation function to new nature in region of antwerp opstalvallei

Apply valuation function to new nature in region of Antwerp “Opstalvallei”

Berendrecht


Apply valuation function to new nature in region of antwerp opstalvallei1

Apply valuation function to new nature in region of Antwerp “Opstalvallei”

  • Area of 190 ha agricultural land.

  • Compensation area for Masterplan Port Antwerp.

  • To be transformed in new nature: wetlands and grasslands, with high biodiversity.

  • Accessible for recreation.

  • Adjecent land use: industry, buildings and nature.

  • 1 million households living in area 50 km.

    Total cultural value: € 170 million/year


Value of regulating services

Value of regulating services

Change in quantity x price

Δ ton CO2 in soil

Δ kg PM in air

Δ decibel in houses

Δ kg N in water

50 €/ton CO2 (international literature)

30 €/kg PM (health costs)

1% house value/dB (house depreciation)

74 €/kg N (marginal abatement cost)


Regulating service water purification

Regulating service water purification

Quantity x Price = € 3,8 million

Change in denitrification potential

Cost curve N-removal

Additional 51.660 kg N

times 74 €/kg N

= 3,8 € million


Conclusions

Conclusions

  • Tool available for Flanders to quantify multiple ecosystem benefits and to express them in money terms.

  • Enables summing up and comparing value new nature or destroyed nature with other benefits and costs in CBA.

  • Tool supplied to potential users on voluntary basis.

  • Hope to include ecosystem valuation in compulsary CBA guidelines for infrastructure.

  • Remaining challenges concerning quantification and data availability and quality.

  • Nevertheless: step forward for better informed decisions on measures or projects with impacts on ecosystems.


Thank you for your attention

Thank you for your attention!

for more information:

[email protected]

[email protected]

[email protected]

http://milieueconomie.lne.be


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