Ontologia

HydroBASINS lev08 watershed · #4080770600

Bassin de Sarju

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 3 administrative regions : Bageshwar, Chamoli, Pithoragarh

Pfafstetter: 45244429

Sub-basin area

778,1km²

Upstream area

778,1km²

Discharge

20,82m³/s

Mean elev.

1 795m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Sarju341 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Nanda Devi

    IUCN Not Applicable

    UNESCO-MAB Biosphere Reserve

    5.31 km² overlap

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

Species present

299 distinct species · 1 945 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 945 obs · 17 cellules
Obs. / cellule
≥ 575
433–574
83–432
57–82
< 57

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

Ecological tissue

Sample of 18 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 Sarju : 12 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 31 interactions GloBI sur 3 types (connectance 16.3%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
20
Interactions affichées
31
Connectance
0.163
Patrimoniales
1
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°

15,2°C

Annual rain

1 593mm

Moisture idx (CMI)

0,26

Runoff

843mm/an

PET

1 175mm

AET

939mm

Mean slope

24,2°

Water table

861cm

Forest

56%

Crops

14%

Urban

1%

Protected

0%

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