HydroBASINS lev08 watershed · #1081135490
Bassin de Nanyuki
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 13 administrative regions : Buuri, Central Imenti, Gichugu, Kieni, Kirinyaga Central +8
Sub-basin area
1 208,7km²
Upstream area
1 208,7km²
Discharge
4,87m³/s
Mean elev.
2 304m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
13 dept-equivalent regions (GADM L2)
- 581.1 km²48.3% of basin
- 461.5 km²38.4% of basin
- 93.2 km²7.7% of basin
- 65.2 km²5.4% of basin
- 0.9 km²0.1% of basin
- 0.6 km²0.0% of basin
- 0.2 km²0.0% of basin
- 0.2 km²0.0% of basin
5 moreFull L2 list
- Gichugu0.1 km² · 0.0%
- Runyenjes0.1 km² · 0.0%
- Mathira0.1 km² · 0.0%
- Kirinyaga Central0.0 km² · 0.0%
- Ndia0.0 km² · 0.0%
5 intersecting protected areas
Mount Kenya National Park/Natural Forest
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
335.63 km² overlap
Mt. Kenya
IUCN IINational Reserve
246.96 km² overlap
Mount Kenya
IUCN Not ReportedForest Reserve
246.77 km² overlap
Mt. Kenya
IUCN Not ReportedNational Park
155.14 km² overlap
Timau
IUCN Not ReportedForest Reserve
3.79 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 508 distinct species · 67 873 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 14 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 Nanyuki : 13 espèces reliées par 11 interactions GloBI sur 3 types (connectance 12.1%, filtre Serrano α=0.2). 1 bulle taxonomique (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°
14,5°C
Annual rain
960mm
Moisture idx (CMI)
-0,34
Runoff
190mm/an
PET
1 516mm
AET
741mm
Mean slope
5,5°
Water table
215cm
Forest
25%
Crops
10%
Urban
4%
Protected
34%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)