HydroBASINS lev08 watershed · #2080492440
Bassin de Galga
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 9 administrative regions : Aszód, Balassagyarmat, Gödöllő, Hatvani, Jászberény +4
Sub-basin area
556,1km²
Upstream area
556,1km²
Discharge
1,68m³/s
Mean elev.
203m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
9 dept-equivalent regions (GADM L2)
- 167.7 km²30.1% of basin
- 107.2 km²19.2% of basin
- 80.8 km²14.5% of basin
- 64.7 km²11.6% of basin
- 64.5 km²11.6% of basin
- 55.7 km²10.0% of basin
- 10.7 km²1.9% of basin
- 4.2 km²0.8% of basin
1 moreFull L2 list
- Pásztó2.0 km² · 0.4%
6 intersecting protected areas
Landscape Protection Area
51.55 km² overlap
Nyugat-Cserhát és Naszály
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
42.36 km² overlap
Gödöllői-dombság
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
40.95 km² overlap
Boldogi Vajda-rét
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.23 km² overlap
Szandai Várhegy
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.28 km² overlap
Nature Conservation Area
0.14 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 969 distinct species · 21 560 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Galga : 21 espèces reliées par 108 interactions GloBI sur 5 types (connectance 17.1%, filtre Serrano α=0.2). 15 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°
10,1°C
Annual rain
563mm
Moisture idx (CMI)
-0,36
Runoff
95mm/an
PET
883mm
AET
480mm
Mean slope
3,9°
Water table
314cm
Forest
23%
Crops
52%
Urban
7%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)