Ontologia

HydroBASINS lev08 watershed · #4080843800

Bassin de Narayani

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 across 2 countries : Lumbini, Narayani, Pashchim Champaran

Pfafstetter: 45243641

Sub-basin area

137km²

Upstream area

3 149,7km²

Discharge

142,27m³/s

Mean elev.

178m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de pathar khola221 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

3 intersecting protected areas

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

Species present

588 distinct species · 5 927 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

5 927 obs · 4 cellules
Obs. / cellule
≥ 3 064
3 064–3 063
1 506–3 063
1 506–1 505
< 1 506

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

Ecological tissue

Sample of 41 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 Narayani : 36 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 42 interactions GloBI sur 4 types (connectance 5.1%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
42
Connectance
0.051
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°

24,3°C

Annual rain

2 059mm

Moisture idx (CMI)

0,23

Runoff

1 531mm/an

PET

1 575mm

AET

994mm

Mean slope

1,4°

Water table

65cm

Forest

25%

Crops

37%

Urban

10%

Protected

75%

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