HydroBASINS lev08 watershed · #2080527240
Bassin de Adda
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 10 administrative regions across 2 countries : Bergamo, Bernina, Bolzano, Brescia, Como +5
Sub-basin area
2 615,2km²
Upstream area
2 615,2km²
Discharge
93,82m³/s
Mean elev.
1 844m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
10 dept-equivalent regions (GADM L2)
- 2361.4 km²90.1% of basin
- 224.9 km²8.6% of basin
- 16.6 km²0.6% of basin
- 6.1 km²0.2% of basin
- 4.9 km²0.2% of basin
- 4.2 km²0.2% of basin
- Bolzano1.5 km²0.1% of basin
- Trento1.3 km²0.0% of basin
30 intersecting protected areas
National Park
413.60 km² overlap
Parco Nazionale dello Stelvio
IUCN Not ReportedSpecial Protection Area (Birds Directive)
409.87 km² overlap
Parco Regionale Orobie Valtellinesi
IUCN Not ReportedSpecial Protection Area (Birds Directive)
223.68 km² overlap
Monte di Scerscen - Ghiacciai di Scerscen - Monte Motta
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
96.13 km² overlap
Monte di Scerscen - Ghiacciai di Scerscen - Monte Motta
IUCN Not ReportedSpecial Protection Area (Birds Directive)
96.13 km² overlap
Special Protection Area (Birds Directive)
94.27 km² overlap
Val Viola Bormina - Ghiacciaio di Cima dei Piazzi
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
59.46 km² overlap
Valle e Ghiacciaio dei Forni - Val Cedec - Gran Zebrù - Cevedale
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
59.36 km² overlap
Val di Mello - Piano di Preda Rossa
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
57.80 km² overlap
21 more protected areassorted by overlap area
Val Fontana
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
42.13 km² overlap
Val Zebrù - Gran Zebrù - Monte Confinale
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
36.95 km² overlap
Val Venina
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
35.19 km² overlap
Valle del Braulio - Cresta di Reit
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
33.54 km² overlap
Valle del Bitto di Albaredo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
33.53 km² overlap
Val di Togno - Pizzo Scalino
IUCN Not ReportedSpecial Protection Area (Birds Directive)
31.52 km² overlap
Val di Togno - Pizzo Scalino
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
31.52 km² overlap
Valle d'Arigna e Ghiacciaio di Pizzo di Coca
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
31.41 km² overlap
Disgrazia - Sissone
IUCN Not ReportedSpecial Protection Area (Birds Directive)
30.03 km² overlap
Disgrazia - Sissone
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
30.03 km² overlap
State Nature Reserve
29.28 km² overlap
Bagni di Masino - Pizzo Badile
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
25.64 km² overlap
Valle del Bitto di Gerola
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
24.17 km² overlap
Valle del Livrio
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
21.10 km² overlap
Val Cervia
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
18.95 km² overlap
Cime di Plator e Monte delle Scale
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
15.72 km² overlap
Valle di Fraele
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
15.67 km² overlap
da Monte Belvedere a Vallorda
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
15.64 km² overlap
Val Madre
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
14.87 km² overlap
Val Bondone - Val Caronella
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
14.85 km² overlap
Campasc
IUCN IVFederal Hunting Reserves
13.34 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
6 960 distinct species · 143 770 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Adda : 17 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 108 interactions GloBI sur 6 types (connectance 18.2%, filtre Serrano α=0.2). 18 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
3,1°C
Annual rain
1 107mm
Moisture idx (CMI)
0,46
Runoff
1 002mm/an
PET
550mm
AET
518mm
Mean slope
26,0°
Water table
850cm
Forest
60%
Crops
2%
Urban
4%
Protected
17%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)