VENETO REGION PILOT AREA Silvia Obber Osservatorio Regionale
VENETO REGION PILOT AREA Silvia Obber Osservatorio Regionale Suolo - ARPAV Ispra 3 -4 February 2005
Pilot Area of Veneto Region (Italy) Area: 207 km 2
soil map 1: 250. 000 of Veneto Region
SOIL MAP 1: 250. 000 rastered by 10 m pixels GRID 1 km 10 m pixel in order to have only 1 SMU value in every pixel
SMU_STU Database of Veneto Region SMU N_STU %_STU
Percentage of each STU in every SMU
% of each STU in the SMU % of each STU in the pixel
STUs PIXEL SMU
STU max in the pixel (macro)
1 km PIXEL DESCRIPTION: STU max SMU 1 PIXEL_id 45252618 SMU 2 STU 1 ZMB 1 40% STU 2 SDP 1 25% STU 3 ORN 1 20% Bare deposits 15% STU 1 CIA 1 30% STU 2 ZMB 1 25% STU 3 CTA 1 20% Bare deposits 10% STU max ZMB 1
JOIN (Count field) Pixel 1 km Pixel 10 km
STU Database of Veneto Region Soil qualities Classification Horizons
Exchange format
Parameter AGRI-USE (Presence/absence of agricolture) 1 0
Parameter IL (Depth class of a presence of an impermeable layer) 1 2 3
Parameter ROO (Depth class of an obstacle to roots) 4 3 2 1
Parameter WRB-FULL (Full soil code from the WRB) PZsk CMskdy LVct GLeu LPca LPrzhu LVctsk
Parameter TOP-DEP (Depth of topsoil - cm) 8 12 10 20 18
Parameter TEXT-TOP-DOM (Dominant topsoil textural class) 2 3 9
EXCURSION April/May 2004, as soon as the snow melts
Soil on dolomitic parent material LEPTOSOLS OVERLYING CALCAREOUS MATERIALS LEPTOSOLS LIMITED BY HARD CALCAREOUS ROCK LPrz A OA AC R C
Soil on metamorphic parent material
Since ARPAV has partecipated to: ALPINE SOILS CLASSIFICATION BY WORLD REFERENCE BASE: PROBLEMS AND SUGGESTIONS Soil Classification 2004 Petrozavodsk, Karelia Some of these problems and suggestions could be discussed during the field trip
CMskp-dy-sq O OA BE Suggetion 1 - Cambisols: Sesquic (sq) qualifier Sesquic qualifier is used for soils having: • B horizon with high concentration of Al in soil solution • weak sesquioxide traslocation • no organic matter traslocation (i. e. not spodic colours). Bs The B structure is fluffy or microgranular with ochre yellow colours C Sesquic Cambisols could be seen as intergrades between Cambisols and Podzols, equivalent to Duchaufour’s sols bruns ocreux (2001) and Alocrisols ocriques (Référentiel Pédologique, 1995)
EXCHANGE FORMAT Ialina Vinci Osservatorio Regionale Suolo - ARPAV Ispra 3 -4 February 2005
LAST NEW VERSION of the exchange format - 1 • 3 tables: STU table, PIXEL table and METADATA table • DOM_STU added dominant STU coverage (%) • also if non soil % > dominant STU %, dom. STU has to be considered for pixel filling in • STU_TOT added as sum of all STU coverage (should be 100% with SUR-BARE, SUR-URB, WBODY) • PX-CFL, PX-AVLB, PX-SCALE, PX-OBS, PXNPROF added to pixel table as data quality indicators
LAST NEW VERSION of the exchange format - 2 • OC-S-30 OC content in the pixel (t/ha), 0 -30 cm from the mineral soil surface • OC-HUM OC content in the pixel (t/ha), holorganic layers • OC-S-100 OC content in the pixel (t/ha), 0 -100 cm from the mineral soil surface (not mandatory) • S-LOSS actual soil loss in the pixel (t/ha/year) estimated through models (CORINE Erosion? )
CORINE EROSION
How to fill in the STU table
PROBLEMS in filling in the STU exchange format - MODULES
How to fill in the PIXEL table Parameters of the pixel table (SUR-BARE, SUR-URB, W-BODY) should be calculated for the whole pixel (weighted average of all STUs, including non soil bodies, of the pixel and not only for the dominant STU (as it has been done for all parameters of the dominant STU description table).
How to fill in METADATA table One metadata table is required for each pilot area. Descriptions have to be as clear and complete as possible
Austria/Veneto border (ETRS LAEA)
- Slides: 33