HydroBASINS lev08 watershed · #7080846740
Bassin de Chontalcoatlan
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 17 administrative regions : Almoloya de Alquisiras, Coatepec Harinas, Coatlán del Río, Ixtapan de la Sal, Pilcaya +12
Sub-basin area
1 273,5km²
Upstream area
1 273,5km²
Discharge
20,32m³/s
Mean elev.
2 172m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
17 dept-equivalent regions (GADM L2)
- 267.3 km²21.1% of basin
- 208.6 km²16.4% of basin
- 168.3 km²13.3% of basin
- 129.0 km²10.2% of basin
- 127.8 km²10.1% of basin
- 106.3 km²8.4% of basin
- 72.2 km²5.7% of basin
- 55.9 km²4.4% of basin
9 moreFull L2 list
- Temascaltepec52.6 km² · 4.1%
- Zinacantepec33.0 km² · 2.6%
- Taxco de Alarcón32.7 km² · 2.6%
- Toluca8.6 km² · 0.7%
- Tenango del Valle3.5 km² · 0.3%
- Villa Guerrero2.9 km² · 0.2%
- San Simón de Guerrero0.5 km² · 0.0%
- Sultepec0.4 km² · 0.0%
- Coatlán del Río0.2 km² · 0.0%
5 intersecting protected areas
Nevado de Toluca
IUCN VIFlora and Fauna Protection Area
89.93 km² overlap
Grutas de Cacahuamilpa
IUCN IINational Park
14.38 km² overlap
ANP Cerro de los Manantiales
IUCN VIVoluntary Conservation Area
4.73 km² overlap
Natural Resources Protection Area
0.59 km² overlap
Grutas de la Estrella
IUCN Not ReportedState Park
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 417 distinct species · 30 668 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Chontalcoatlan : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 77 interactions GloBI sur 5 types (connectance 11.6%, filtre Serrano α=0.2). 9 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°
17,3°C
Annual rain
1 226mm
Moisture idx (CMI)
-0,18
Runoff
369mm/an
PET
1 520mm
AET
906mm
Mean slope
11,7°
Water table
451cm
Forest
93%
Crops
28%
Urban
6%
Protected
8%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)