Ontologia

HydroBASINS lev08 watershed · #1080640690

Bassin du Niger

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 : Ouallam, Tillabéry

Pfafstetter: 14273708

Sub-basin area

1 233,5km²

Upstream area

1 233,5km²

Discharge

0,65m³/s

Mean elev.

265m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin du Niger179 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

  • Tillabéry
    Tillabéry · Niger
    1061.8 km²
    86.4% of basin
  • Ouallam
    Tillabéry · Niger
    167.3 km²
    13.6% of basin

1 intersecting protected areas

  • Kandadji

    IUCN IV

    Nature Reserve

    361.42 km² overlap

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

Species present

5 distinct species · 10 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

10 obs · 4 cellules
Obs. / cellule
≥ 6
6–5
2–5
2–1
< 2

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

Ecological tissue

Not enough documented interactions to build a meaningful graph for this territory.

Hydroclimate (BasinATLAS lev08)

Mean T°

29,2°C

Annual rain

264mm

Moisture idx (CMI)

-0,87

Runoff

14mm/an

PET

2 113mm

AET

220mm

Mean slope

0,6°

Water table

193cm

Forest

0%

Crops

9%

Urban

0%

Protected

0%

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