Ontologia

HydroBASINS lev08 watershed · #1080811140

Bassin de Niandan

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 : Kankan, Kouroussa

Pfafstetter: 14298450

Sub-basin area

823,7km²

Upstream area

8 180,2km²

Discharge

163,1m³/s

Mean elev.

430m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Niandan648 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Niger-Niandan-Milo

    IUCN IV

    Wetland of International Importance (Ramsar Site)

    541.89 km² overlap

  • Gban

    IUCN Not Reported

    Classified Forest

    108.52 km² overlap

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

Species present

17 distinct species · 75 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

75 obs · 6 cellules
Obs. / cellule
≥ 43
43–42
27–42
2–26
< 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°

25,8°C

Annual rain

1 670mm

Moisture idx (CMI)

-0,23

Runoff

481mm/an

PET

2 177mm

AET

1 201mm

Mean slope

2,1°

Water table

106cm

Forest

35%

Crops

6%

Urban

0%

Protected

100%

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