jean-louis weber, eea
DESCRIPTION
Development of Land and Ecosystems Accounts in Europe Implementation of land cover accounts Discussion of accounts of land use functions. Jean-Louis Weber, EEA. Land & Ecosystems Accounts (LEAC). The SEEA methodological framework - PowerPoint PPT PresentationTRANSCRIPT
London Group MeetingRome, 5-7 November 2003
Development of Land and Ecosystems Accounts in Europe
Implementation of land cover accountsDiscussion of accounts of land use
functions
Jean-Louis Weber, EEA
London Group MeetingRome, 5-7 November 2003
Land & Ecosystems Accounts (LEAC)
• The SEEA methodological framework• 2 pilot project run by EEA & ETCTE (UAB & GISAT) with the support of Eurostat• Applications 1975-1990 for the European coast and 4 Central & Eastern Europe Countries, based on Corine land cover (CLC)
London Group MeetingRome, 5-7 November 2003
CLC 1990
London Group MeetingRome, 5-7 November 2003
CORINE Land Cover Aggregated Nomenclature (Level 1bis)
1 Artificial surfaces2 Agricultural areas
2.1+2.2 Arable Land & Permanent Crops2.3+2.4 Pastures & Heterogeneous
agricultural areas3 Forests and semi-natural areas
3.1 Forests3.2+3.2 Shrub and other semi-natural land
4 Wetlands5 Water bodies
London Group MeetingRome, 5-7 November 2003
Status of the CLC2000 production (March 03)
+
London Group MeetingRome, 5-7 November 2003
Example of CLC changes: Afforestation in a former mining area (Germany)
left: 1990, right: 2000
London Group MeetingRome, 5-7 November 2003
CLC2000 : Antwerp (city & harbour)Size of grid cells : 4 km x 4 km
London Group MeetingRome, 5-7 November 2003
CLC changes : Antwerp (city & harbour)Size of grid cells : 4 km x 4 km
London Group MeetingRome, 5-7 November 2003
LEAC are based on spatial analysis
London Group MeetingRome, 5-7 November 2003
Framework of Land Accounts proposed by the UNECE task force, presented in Tokyo, 1996 …
CORE ACCOUNTS
Changes in Land cover/Land use
Biodiversity
Partitioning of land
Impacts of activities
Potentials of land
SUPPLEMENTARY ACCOUNTS, ISSUE ORIENTED
Sealing of soils
Artificiality
Productivity of land
London Group MeetingRome, 5-7 November 2003
… continued in the SEEA
Land cover changes matrix Land cover x land use matrix
Land cover (initial state)
Land cover (final state)
Land cover core account
Land use x activities matrix
economic decisions
natural causes
multiple causes
Lan
d c
ove
r
Act
iviti
es/ s
ecto
rs
Land cover flows due to Final
state
Land cover (final state)
Land use functions
Land use functions
Lan
d c
ove
r
(in
itia
l st
ate)
Lan
d c
ove
r flo
ws
Initial state
London Group MeetingRome, 5-7 November 2003
LEAC present outcome
• Stratification of the territory into accounting units:Administrative unitsPhysical, ecological zonesDominant landscape types
• Definition and test of accounting methodology:Land cover stocksLand cover changes (from CLCy to CLCz)Land cover flows (which group changes into processes)
• 2 Reports and 2 Posters available at the Library of: http://eea.eionet.eu.int:8980/Public/irc/eionet-circle/leac/home
London Group MeetingRome, 5-7 November 2003
Land accounting units
• Grids
• Administrative Units
• River basins
• Sea catchments
• Bio-geographical regions
• Coastal units
• Dominant Landscape
Types
London Group MeetingRome, 5-7 November 2003
The relationship between basic and targeted accounts
London Group MeetingRome, 5-7 November 2003
Account of Land Cover Flows of the European Coast
COMMENT: Loss of ecosystems potentials generated by the use of land
26 types of land cover (green) are used for the formation of 10 types of new land cover (orange). At this level of aggregation, the only reverse flow is farmland abandonment.
(NB: only changes > 1000 ha are considered)
London Group MeetingRome, 5-7 November 2003
Main land cover flows on European coast, 1975-1990
Main land cover flows on European coast, 1975-1990 - ha
191860
103151
323569
160692
190425
415126
203852
121485
0 50000 100000 150000 200000 250000 300000 350000 400000 450000
Coastal erosion
Farmland abandonment
Recent extension of pasture, fallowland, set aside
Forests creation
Conversion of marginal land toagriculture
Intensification of agriculture
Planting of vineyards, fruit and olivetrees over arable & pasture
Urban sprawl+Extension of economicsites and infrastructures
London Group MeetingRome, 5-7 November 2003
Trends in marginal land on European coast, 1975-90, ha
0 10000 20000 30000 40000 50000 60000 70000
A1-Urban dense areas
A2-Dirspersed urban
B1-Broad pattern agriculture
B2-Composite rural landscape
C1-Forested landscape
C2-Open natural landscape
C3-No dominance
Farmland abandonment Conversion of marginal land to agriculture
London Group MeetingRome, 5-7 November 2003
+
- =
Net Intensification of Land Use,
European coast, 1975-90, NUTS3
London Group MeetingRome, 5-7 November 2003
Forest vs. Agriculture flows in the 4 CEEC
London Group MeetingRome, 5-7 November 2003
Next steps
• Tests of the use of the map of dominant landscape types in areas such as agri-environment indicators, ecosystems assessment, scenario making
• Production of land cover accounts with CLC2000• Analysis of trends of European territory in terms of
regional land cover flows• Further development of accounts by land use
functions (continuation of the case study on coastal tourism)
• Broad dissemination of data & maps on the EEA website
• Contacts: [email protected]@uab.es (ETCTE)