HydroBASINS lev08 watershed · #2080640370
Bassin de Vala Real
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 11 administrative regions : Ansião, Cantanhede, Coimbra, Condeixa-a-Nova, Figueira da Foz +6
Sub-basin area
851,8km²
Upstream area
5 737,2km²
Discharge
97,39m³/s
Mean elev.
99m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rio Ceira733 km²
- Bassin de Rio Mondego127 km²
11 dept-equivalent regions (GADM L2)
- 256.9 km²30.1% of basin
- Montemor-o-VelhoCoimbra · Portugal172.9 km²20.3% of basin
- Condeixa-a-NovaCoimbra · Portugal128.7 km²15.1% of basin
- Figueira da FozCoimbra · Portugal88.1 km²10.3% of basin
- CantanhedeCoimbra · Portugal68.4 km²8.0% of basin
- 39.2 km²4.6% of basin
- SoureCoimbra · Portugal28.9 km²3.4% of basin
- 24.6 km²2.9% of basin
3 moreFull L2 list
- Mealhada22.5 km² · 2.6%
- Ansião22.5 km² · 2.6%
- Miranda do Corvo0.0 km² · 0.0%
7 intersecting protected areas
Paul de Arzila
IUCN Not ReportedSite of Community Importance (Habitats Directive)
6.52 km² overlap
Paúl de Arzila
IUCN IVWetland of International Importance (Ramsar Site)
6.00 km² overlap
Paul de Arzila
IUCN IVNature Reserve
5.87 km² overlap
Dunas de Mira, Gândara e Gafanhas
IUCN Not ReportedSite of Community Importance (Habitats Directive)
4.85 km² overlap
Paul de Arzila
IUCN Not ReportedSpecial Protection Area (Birds Directive)
4.77 km² overlap
Paúl do Taipal
IUCN Not ReportedWetland of International Importance (Ramsar Site)
2.32 km² overlap
Paul do Taipal
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.21 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
8 220 distinct species · 291 729 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 Vala Real : 33 espèces reliées par 82 interactions GloBI sur 4 types (connectance 9.5%, filtre Serrano α=0.2). 9 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°
15,6°C
Annual rain
956mm
Moisture idx (CMI)
-0,09
Runoff
543mm/an
PET
1 048mm
AET
678mm
Mean slope
3,8°
Water table
222cm
Forest
61%
Crops
27%
Urban
12%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)