Ontologia

HydroBASINS lev08 watershed · #2080727090

Bassin · #2080727090

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 : Karaj, Nazarabad, Qazvin, Savojbolagh

EndorheicPfafstetter: 29260637

Sub-basin area

267,7km²

Upstream area

15 614km²

Discharge

54,83m³/s

Mean elev.

1 321m

Administrative coverage

Hydrographic chain

Drains into

4 dept-equivalent regions (GADM L2)

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

94 distinct species · 262 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

262 obs · 7 cellules
Obs. / cellule
≥ 177
177–176
17–176
16–16
< 16

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin · #2080727090 : 21 espèces reliées par 51 interactions GloBI sur 3 types (connectance 13.5%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
28
Interactions affichées
51
Connectance
0.135
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

14,1°C

Annual rain

282mm

Moisture idx (CMI)

-0,79

Runoff

145mm/an

PET

1 329mm

AET

241mm

Mean slope

2,1°

Water table

261cm

Forest

0%

Crops

31%

Urban

5%

Protected

0%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)