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Proposal for the creation of a sub-group on ecosystem accounting

Proposal for the creation of a sub-group on ecosystem accounting. Jean-Louis Weber. Land & ecosystem accounts. UNECE working group (1994-96) (FR, UK, DE, AT, PL)– presentation at IARIW, Tokyo First Eurostat test of land cover accounts (1997-99) (FR, UK, DE) SEEA 2003, ”LEAC”

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Proposal for the creation of a sub-group on ecosystem accounting

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  1. Proposal for the creation of a sub-group on ecosystem accounting Jean-Louis Weber

  2. Land & ecosystem accounts • UNECE working group (1994-96) (FR, UK, DE, AT, PL)– presentation at IARIW, Tokyo • First Eurostat test of land cover accounts (1997-99) (FR, UK, DE) • SEEA 2003, ”LEAC” • Feasibility study EEA/ETCTE & Eurostat (2002-2003) 1975-1990 (CZ, SL, HU, RO, plus European coast) • Production in Europe from Corine land cover 1990-2000, EEA (2004-2005) 24 countries • Web dissemimation, detailed data 1km2 grid – 2006 LEAC.xls • SOER2005 & Report on land cover accounts with detailed methodology – EEA 2006 • Ecosystem accounts at the EEA, 2005, ongoing activity, International workshop EEA-UNSD, Copenhagen, 30 Nov.-1st Dec. 2006

  3. Sprawl of artificial areas

  4. Change in agriculture

  5. Production & Consumption Ecosystem services Atmosphere/ Climate Ecosystem potentials Water system Integrity, health & viability Vulnerability Natural Assets Population Flora & Fauna Soil Land based ecosystem accounting Land use economic & social functions Artificiality of land Infrastructures & Technologies Intensity of use ECOSYSTEM & LAND USE ACCOUNTS CORE LAND COVER ACCOUNT

  6. Counts of stocks diversity / integrity (by ecosystem types, focus on quality) Ecosystem State (health diagnosis and wealth calculation) Ecosystem Stocks & State Accounts Working Framework of Ecosystem Accounts Spatial integration Economic sectors Accounts of flows of ecosystem goods and services Basic accounts of stocks & flows (by ecosystem types, raw quantities) Material/energy flows (focus on biomass, water, nutrients, residuals) Functions & Services • Land use function • Natural function Supply & use of ecosystem goods and services (Use of resource by sectors, supply to consumption & residuals, accumulation, I-O analysis) Ecosystem types Natural assets accounts • Natural capital structure, resilience & wealth (physical units, by sectors) • Capital consumption & accumulation (physical units, €) • Ecosystem assets wealth (€) Natural Capital Accounts/ living & cycling natural capital Economic integration

  7. Basic accounts of stocks and flows by ecosystem types • Terrestrial ecosystems: • land cover (km², number of land units) • rivers (standard-river-km, number of reaches) • small features (number of units) • Marine ecosystem (km²) • Biomass (dry matter, C, energy…) • soil biomass • vegetation (non soil) • fauna • Water quantity (m3) • Nitrogen, Phosphorus (t) • Species

  8. Ecosystem health: counts of diversity/integrity • Ecosystem Distress Syndrome model: • Disruptions of nutrients cycling (loss or excess) • Degradation of substrates (fragmentation, water stress, chemical stress) • Change in species composition (invasive…) • Dependence of systems from artificial input (energy, water, subsidies …) • Specific diagnosis From selection of markers and threshold values according to habitat types, region, context • Homeostasis state (no alteration foreseen). • Resilience state (the disturbance that ecosystems are still able to absorb or compensate, keeping the same functions, identity and feedbacks(Walker, 2005). • Reversible process without compensation (degradation). • Irreversible change (death). • Focussed research of stressors • overharvesting, overuse • land/rivers restructuring • deposition of residuals • introduction of species • Physical wealth as stocks*coefficients (potential, resilience)

  9. Land use functions and ecosystem services • Support services  Basic accounts & MF&EA • Provisioning services: goods (food, fiber, wood, fuel…) and services that can be “consumed” in given quantities  Supply & use tables by sectors • Cultural services  Indirect measurement (beneficiaries) • Regulating services  collective, direct measurement maybe difficult, indirect measurement (beneficiaries, risk assessment/insurance, natural capital/potentials)  ecosystem services defined according to natural and land use functions

  10. Support expected from the London Group Priority areas • Physical & Hybrid flow accounts, M&EFA, PIOT • Asset accounts: Forest/Water/Fisheries; agro-ecosystems • Wealth assessment Methodological issues • Development of the working accouting framework of land & ecosystem accounts • Consistency with SEEA standards • Classifications • Land use functions and ecosystem services • Optimal levels of data assimilation and common requirements (scales, time series...) • Valuation Actions • e-Working sub-group • Session of the next London Group • ”Long term” research but urgent needs

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