HydroBASINS lev08 watershed · #2080509720
Bassin de Hármas-Körös
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 : Békési, Mezőtúri, Szarvas, Szeghalmi
Sub-basin area
432,8km²
Upstream area
22 032,9km²
Discharge
104,7m³/s
Mean elev.
80m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Kettős-Körös1521 km²
- Bassin de Dióéri-csatorna129 km²
4 dept-equivalent regions (GADM L2)
- 293.3 km²67.6% of basin
- 59.0 km²13.6% of basin
- 45.1 km²10.4% of basin
- 36.6 km²8.4% of basin
7 intersecting protected areas
Hármas-Körös
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
23.71 km² overlap
Körös–Maros Nemzeti Park
IUCN VNational Park
20.44 km² overlap
Dévaványa környéki gyepek
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.60 km² overlap
Tóniszállás-szarvasi gyepek
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.34 km² overlap
Fekete-, Fehér- és Kettős-Körös
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.93 km² overlap
Sebes-Körös
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.60 km² overlap
Dévaványai-sík
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
434 distinct species · 1 567 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 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 Hármas-Körös : 18 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 69 interactions GloBI sur 3 types (connectance 17.0%, filtre Serrano α=0.2). 11 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°
10,7°C
Annual rain
539mm
Moisture idx (CMI)
-0,43
Runoff
65mm/an
PET
940mm
AET
461mm
Mean slope
0,0°
Water table
5cm
Forest
5%
Crops
68%
Urban
3%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)