HydroBASINS lev08 watershed · #1081426890
Bassin de Phalombe
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 18 administrative regions : Blantyre City, Chiradzulu Boma, Lake Chilwa, Mulanje Mountain Forest Reserve, SC Juma +12
Sub-basin area
1 465,2km²
Upstream area
1 465,2km²
Discharge
19,81m³/s
Mean elev.
816m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
18 dept-equivalent regions (GADM L2)
- 375.0 km²25.7% of basin
- 338.9 km²23.2% of basin
- 163.1 km²11.2% of basin
- 112.9 km²7.7% of basin
- 94.7 km²6.5% of basin
- 85.0 km²5.8% of basin
- 62.3 km²4.3% of basin
- 49.8 km²3.4% of basin
10 moreFull L2 list
- Lake Chilwa43.9 km² · 3.0%
- Mulanje Mountain Forest Reserve32.0 km² · 2.2%
- TA Likoswe28.1 km² · 1.9%
- TA Mlumbe25.0 km² · 1.7%
- TA Chikowi18.5 km² · 1.3%
- Lake Chilwa14.2 km² · 1.0%
- Blantyre City6.8 km² · 0.5%
- TA Chitera5.9 km² · 0.4%
- Chiradzulu Boma3.7 km² · 0.3%
- TA Machinjili0.2 km² · 0.0%
5 intersecting protected areas
Lake Chilwa
IUCN Not ReportedWetland of International Importance (Ramsar Site)
93.86 km² overlap
Mulanje Mountain
IUCN VIForest Reserve
32.23 km² overlap
Michese
IUCN VIForest Reserve
22.91 km² overlap
Chiradzulu
IUCN VIForest Reserve
7.74 km² overlap
Sambani
IUCN VIForest Reserve
1.44 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
942 distinct species · 2 220 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 48 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 Phalombe : 38 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 56 interactions GloBI sur 5 types (connectance 5.0%, filtre Serrano α=0.2). 10 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°
21,6°C
Annual rain
1 389mm
Moisture idx (CMI)
-0,10
Runoff
472mm/an
PET
1 544mm
AET
1 007mm
Mean slope
2,3°
Water table
110cm
Forest
6%
Crops
16%
Urban
39%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)