HydroBASINS lev08 watershed · #1081613260
Bassin de Pongolo
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 6 administrative regions across 2 countries : Hosea, Matsanjeni South, Shiselweni, Somntongo, Zombodze +1
Sub-basin area
1 731,8km²
Upstream area
7 139,3km²
Discharge
41,5m³/s
Mean elev.
453m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #1081613850657 km²
- Bassin de Pongolo565 km²
6 dept-equivalent regions (GADM L2)
- 1216.5 km²70.4% of basin
- Matsanjeni SouthShiselweni · Swaziland241.9 km²14.0% of basin
- ShiselweniShiselweni · Swaziland121.0 km²7.0% of basin
- 73.0 km²4.2% of basin
- 54.2 km²3.1% of basin
- 22.3 km²1.3% of basin
2 intersecting protected areas
Pongola Nature Reserve
IUCN Not ReportedNature Reserve
42.87 km² overlap
Itala Nature Reserve
IUCN Not ReportedNature Reserve
14.36 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 015 distinct species · 50 049 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Pongolo : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 28 interactions GloBI sur 3 types (connectance 6.0%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
20,5°C
Annual rain
716mm
Moisture idx (CMI)
-0,52
Runoff
118mm/an
PET
1 505mm
AET
606mm
Mean slope
7,0°
Water table
606cm
Forest
95%
Crops
15%
Urban
4%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)