HydroBASINS lev08 watershed · #2080576080
Bassin de Черни Лом
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 14 administrative regions : Antonovo, Borovo, Byala, Dve Mogili, Gorna Orhyahovitsa +9
Sub-basin area
1 542,6km²
Upstream area
1 542,7km²
Discharge
6,46m³/s
Mean elev.
278m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
14 dept-equivalent regions (GADM L2)
- 529.3 km²34.2% of basin
- 273.1 km²17.7% of basin
- StrazhitsaVeliko Tarnovo · Bulgaria182.3 km²11.8% of basin
- 153.2 km²9.9% of basin
- 131.1 km²8.5% of basin
- 59.9 km²3.9% of basin
- TargovishteTargovishte · Bulgaria53.0 km²3.4% of basin
- 49.8 km²3.2% of basin
6 moreFull L2 list
- Polski Trambesh32.3 km² · 2.1%
- Loznitsa31.5 km² · 2.0%
- Gorna Orhyahovitsa20.9 km² · 1.4%
- Borovo20.7 km² · 1.3%
- Omurtag7.2 km² · 0.5%
- Tsar Kaloyan1.2 km² · 0.1%
10 intersecting protected areas
Cherni Lom
IUCN Not AssignedState Game Husbandries
723.90 km² overlap
Dunav
IUCN Not AssignedState Game Husbandries
78.62 km² overlap
Lomovete
IUCN Not ReportedSpecial Protection Area (Birds Directive)
78.23 km² overlap
Lomovete
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
72.00 km² overlap
Belenska gora
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
24.93 km² overlap
Rusenski Lom
IUCN VNature Park
5.81 km² overlap
Ostrovche
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.20 km² overlap
Orlova chuka
IUCN IIINatural Monument
0.82 km² overlap
Protected Site
0.37 km² overlap
1 more protected areassorted by overlap area
Golyama reka
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 254 distinct species · 6 312 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Черни Лом : 24 espèces reliées par 115 interactions GloBI sur 5 types (connectance 18.3%, filtre Serrano α=0.2). 12 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°
10,3°C
Annual rain
625mm
Moisture idx (CMI)
-0,34
Runoff
144mm/an
PET
950mm
AET
531mm
Mean slope
5,3°
Water table
385cm
Forest
15%
Crops
48%
Urban
1%
Protected
52%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)