HydroBASINS lev08 watershed · #1081585930
Bassin de Notwane River
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 4 administrative regions : Ngwaketse Central, Ngwaketse North, Ngwaketse South, South East
Sub-basin area
1 556,1km²
Upstream area
1 556,1km²
Discharge
0,38m³/s
Mean elev.
1 203m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 631.2 km²40.6% of basin
- 571.3 km²36.8% of basin
- 348.9 km²22.5% of basin
- 1.5 km²0.1% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
812 distinct species · 9 070 observations
Source: GBIF Occurrence snapshot 2026-05-01.
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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Notwane River : 18 espèces reliées par 12 interactions GloBI sur 3 types (connectance 7.8%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
19,0°C
Annual rain
498mm
Moisture idx (CMI)
-0,70
Runoff
7mm/an
PET
1 672mm
AET
420mm
Mean slope
2,1°
Water table
524cm
Forest
9%
Crops
8%
Urban
3%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)