HydroBASINS lev08 watershed · #2080273890
Bassin de Brasla
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 4 administrative regions : Cesis, Limbaži, Riga, Valmiera
Sub-basin area
520,2km²
Upstream area
520,3km²
Discharge
5,71m³/s
Mean elev.
75m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 247.7 km²47.4% of basin
- 241.5 km²46.2% of basin
- 22.8 km²4.4% of basin
- 10.8 km²2.1% of basin
25 intersecting protected areas
Biosphere Reserve
199.31 km² overlap
Gaujas Nacionālais parks
IUCN Not ReportedSpecial Protection Area (Birds Directive)
84.07 km² overlap
Gaujas Nacionālais parks
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
84.07 km² overlap
Gaujas Nacionālais parks
IUCN IINational Park
84.07 km² overlap
Lielais un Pemmes purvs
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
17.94 km² overlap
Lielais un Pemmes purvs
IUCN Not ReportedSpecial Protection Area (Birds Directive)
17.94 km² overlap
Lielais un Pemmes purvs
IUCN IVNature Reserve
17.94 km² overlap
Purgaiļu purvs
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.48 km² overlap
Purgaiļu purvs
IUCN IVNature Reserve
3.48 km² overlap
16 more protected areassorted by overlap area
Augstroze
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.60 km² overlap
Augstroze
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.60 km² overlap
Augstroze
IUCN IVNature Reserve
2.60 km² overlap
Klagatu purvs
IUCN IVNature Reserve
1.54 km² overlap
Klagatu purvs
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.52 km² overlap
Braslas lejteces ieži
IUCN IIINature Monument
0.69 km² overlap
Maizezers
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.57 km² overlap
Maizezers
IUCN IVNature Reserve
0.56 km² overlap
Elles purvs
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.19 km² overlap
Elles purvs
IUCN IVMicro-reserve
0.19 km² overlap
Vējiņu alas un Elles bedres
IUCN IIINature Monument
0.06 km² overlap
Linezers
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.02 km² overlap
Linezers
IUCN IVNature Reserve
0.02 km² overlap
Dravenieku avoti
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.02 km² overlap
Dravenieku avoti
IUCN IVMicro-reserve
0.02 km² overlap
Nature Monument
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
746 distinct species · 1 395 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Brasla : 28 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 78 interactions GloBI sur 3 types (connectance 13.1%, filtre Serrano α=0.2). 7 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°
5,5°C
Annual rain
659mm
Moisture idx (CMI)
0,14
Runoff
346mm/an
PET
566mm
AET
445mm
Mean slope
1,4°
Water table
79cm
Forest
54%
Crops
20%
Urban
0%
Protected
58%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)