Ontologia

HydroBASINS lev08 watershed · #2080637730

Bassin de Հրազդան

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.

107% lakePfafstetter: 28464603

Sub-basin area

1 900,5km²

Upstream area

6 019,3km²

Discharge

25,36m³/s

Mean elev.

2 068m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Հրազդան813 km²

▲ Receives from 2 basins

0 dept-equivalent regions (GADM L2)

    11 intersecting protected areas

    2 more protected areas

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

    Species present

    2 438 distinct species · 20 306 observations

    Source: GBIF Occurrence snapshot 2026-05-01.

    Densité d'observations

    20 306 obs · 54 cellules
    Obs. / cellule
    ≥ 3 736
    1 059–3 735
    264–1 058
    133–263
    < 133

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

    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).

    RègnesAnimalPlanteChampignonBacterie
    RelationsPredationParasitismeSymbiosePollinisation
    StatutEn dangerVulnérableProtégéeEndémique

    Indicateurs du tissu écologique

    Tissu écologique de Bassin de Հրազդան : 19 espèces reliées par 83 interactions GloBI sur 4 types (connectance 17.8%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

    Espèces affichées
    31
    Interactions affichées
    83
    Connectance
    0.178
    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°

    4,6°C

    Annual rain

    537mm

    Moisture idx (CMI)

    -0,34

    Runoff

    124mm/an

    PET

    827mm

    AET

    464mm

    Mean slope

    9,8°

    Water table

    466cm

    Forest

    4%

    Crops

    19%

    Urban

    3%

    Protected

    21%

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