HydroBASINS lev08 watershed · #2080277370
Bassin de Daugava
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 3 administrative regions : Bauska, Ogre, Riga
Sub-basin area
613,2km²
Upstream area
83 915,5km²
Discharge
701,88m³/s
Mean elev.
23m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Ogre1670 km²
- Bassin de Daugava663 km²
3 dept-equivalent regions (GADM L2)
- 499.2 km²81.0% of basin
- 95.2 km²15.4% of basin
- 21.9 km²3.6% of basin
12 intersecting protected areas
Dolessala
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
10.45 km² overlap
Doles sala
IUCN IINature Park
10.42 km² overlap
Ogres Zilie kalni
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.09 km² overlap
Ogres Zilie kalni
IUCN IINature Park
3.09 km² overlap
Nature Monument
1.27 km² overlap
Krēmeri
IUCN IVNature Reserve
0.15 km² overlap
Baldones sanatorijas parks
IUCN IIINature Monument
0.04 km² overlap
Nature Monument
0.02 km² overlap
Dolesmuižas atsegums
IUCN IIINature Monument
0.02 km² overlap
3 more protected areassorted by overlap area
Baldones Baltās pils parks
IUCN IIINature Monument
0.01 km² overlap
Nature Monument
0.01 km² overlap
Nature Monument
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 292 distinct species · 42 622 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 45 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 Daugava : 29 espèces reliées par 98 interactions GloBI sur 7 types (connectance 9.1%, 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°
6,2°C
Annual rain
645mm
Moisture idx (CMI)
0,11
Runoff
314mm/an
PET
576mm
AET
458mm
Mean slope
1,1°
Water table
61cm
Forest
48%
Crops
17%
Urban
23%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)