HydroBASINS lev08 watershed · #2080704590
Bassin de گرگان رود
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 2 administrative regions : Gonbad-e-Kavus, Gorgan
Sub-basin area
570km²
Upstream area
7 777,8km²
Discharge
29,67m³/s
Mean elev.
81m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de خرما رود(خرما چای)925 km²
- Bassin de گرگان رود8 km²
2 dept-equivalent regions (GADM L2)
- 562.5 km²98.6% of basin
- 7.7 km²1.4% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
104 distinct species · 446 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 گرگان رود : 23 espèces reliées par 52 interactions GloBI sur 3 types (connectance 12.0%, 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°
17,7°C
Annual rain
358mm
Moisture idx (CMI)
-0,72
Runoff
80mm/an
PET
1 293mm
AET
306mm
Mean slope
1,6°
Water table
143cm
Forest
12%
Crops
40%
Urban
2%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)