Ontologia

HydroBASINS lev08 watershed · #1081329550

Bassin de Rio Kwanza

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 3 administrative regions : Cacuzo, Calandula, Malanje

Pfafstetter: 13183506

Sub-basin area

1 418,2km²

Upstream area

1 418,5km²

Discharge

12,33m³/s

Mean elev.

1 113m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Rio Kwanza418 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

  • Malanje
    Malanje · Angola
    921.1 km²
    65.2% of basin
  • Cacuzo
    Malanje · Angola
    465.5 km²
    33.0% of basin
  • Calandula
    Malanje · Angola
    25.8 km²
    1.8% of basin

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

Species present

454 distinct species · 759 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

759 obs · 21 cellules
Obs. / cellule
≥ 451
50–450
17–49
5–16
< 5

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

Ecological tissue

Sample of 16 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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Rio Kwanza : 16 espèces + 0 bulles famille, 11 interactions GloBI documentées sur 2 types (connectance 9.2%, filtre Serrano α=0.2).

Espèces affichées
16
Interactions affichées
11
Connectance
0.092
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

21,3°C

Annual rain

1 115mm

Moisture idx (CMI)

-0,37

Runoff

275mm/an

PET

1 762mm

AET

942mm

Mean slope

1,6°

Water table

207cm

Forest

89%

Crops

5%

Urban

4%

Protected

0%

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