HydroBASINS lev08 watershed · #2080281100
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 : Aizkraukle, Bauska, Ogre
Sub-basin area
662,8km²
Upstream area
81 632,3km²
Discharge
642,34m³/s
Mean elev.
60m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Lauce186 km²
- Bassin de Daugava114 km²
3 dept-equivalent regions (GADM L2)
- 433.7 km²65.1% of basin
- 223.4 km²33.5% of basin
- 9.0 km²1.4% of basin
20 intersecting protected areas
Aizkraukles purvi un meži
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
12.94 km² overlap
Aizkraukles purvs un meži
IUCN IVNature Reserve
12.94 km² overlap
Daugavas ieleja
IUCN IINature Park
10.00 km² overlap
Daugavas ieleja
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
10.00 km² overlap
Daugava pie Kaibalas
IUCN Not ReportedSpecial Protection Area (Birds Directive)
5.79 km² overlap
Daugava pie Kaibalas
IUCN IVNature Reserve
5.79 km² overlap
Nature Monument
3.95 km² overlap
Pilskalnu meži
IUCN IVNature Reserve
1.97 km² overlap
Ozolkalni
IUCN IVNature Reserve
0.28 km² overlap
11 more protected areassorted by overlap area
Skrīveru dendrārijs
IUCN IIINature Monument
0.17 km² overlap
Rembates parks
IUCN IIINature Monument
0.11 km² overlap
Radžu ūdensrijēji un sausgultne
IUCN IIINature Monument
0.09 km² overlap
Lielvārdes parks
IUCN IIINature Monument
0.08 km² overlap
Nature Monument
0.06 km² overlap
Dūņezera purvs
IUCN IVNature Reserve
0.04 km² overlap
Dūņezera purvs
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.04 km² overlap
Dzelmes
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.03 km² overlap
Dzelmes
IUCN IVMicro-reserve
0.03 km² overlap
Rumbiņas ūdenskritums
IUCN IIINature Monument
0.01 km² overlap
Nature Monument
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 783 distinct species · 43 896 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 50 interactions GloBI sur 4 types (connectance 5.8%, filtre Serrano α=0.2). 13 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°
5,8°C
Annual rain
644mm
Moisture idx (CMI)
0,06
Runoff
290mm/an
PET
607mm
AET
469mm
Mean slope
1,2°
Water table
78cm
Forest
41%
Crops
32%
Urban
2%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)