HydroBASINS lev08 watershed · #7080839170
Bassin de Río Lerma
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 36 administrative regions : Almoloya de Juárez, Almoloya del Río, Atizapán, Calimaya, Capulhuac +31
Sub-basin area
2 137,8km²
Upstream area
2 137,8km²
Discharge
10,3m³/s
Mean elev.
2 844m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
36 dept-equivalent regions (GADM L2)
- 403.1 km²18.9% of basin
- 230.7 km²10.8% of basin
- 190.1 km²8.9% of basin
- 187.7 km²8.8% of basin
- 139.1 km²6.5% of basin
- 128.8 km²6.0% of basin
- 112.3 km²5.3% of basin
- 103.0 km²4.8% of basin
28 moreFull L2 list
- Tenango del Valle101.0 km² · 4.7%
- Xalatlaco82.5 km² · 3.9%
- Metepec67.4 km² · 3.2%
- Xonacatlán53.5 km² · 2.5%
- Ocuilan40.2 km² · 1.9%
- Ixtlahuaca26.7 km² · 1.3%
- San Antonio la Isla25.3 km² · 1.2%
- Almoloya de Juárez24.8 km² · 1.2%
- Texcalyacac24.7 km² · 1.2%
- Rayón23.0 km² · 1.1%
- Jiquipilco22.4 km² · 1.1%
- Joquicingo21.2 km² · 1.0%
- Capulhuac21.0 km² · 1.0%
- San Mateo Atenco18.9 km² · 0.9%
- Huixquilucan12.8 km² · 0.6%
- Chapultepec12.0 km² · 0.6%
- Mexicaltzingo11.3 km² · 0.5%
- Almoloya del Río9.2 km² · 0.4%
- Atizapán8.5 km² · 0.4%
- Isidro Fabela8.5 km² · 0.4%
- Naucalpan de Juárez7.3 km² · 0.3%
- Jilotzingo6.6 km² · 0.3%
- Cuajimalpa de Morelos5.6 km² · 0.3%
- Nicolás Romero1.7 km² · 0.1%
- La Magdalena Contreras0.2 km² · 0.0%
- Tlalpan0.1 km² · 0.0%
- Temascaltepec0.0 km² · 0.0%
- Álvaro Obregón0.0 km² · 0.0%
17 intersecting protected areas
State Park
248.28 km² overlap
Zempoala - La Bufa Otomí-Mexica
IUCN Not ReportedEcological Park
226.96 km² overlap
Nevado de Toluca
IUCN VIFlora and Fauna Protection Area
203.22 km² overlap
Santuario del Agua y Forestal Subcuenca Tributaria Río San Lorenzo
IUCN Not ReportedState Park
125.65 km² overlap
State Park
112.32 km² overlap
Nahuatlaca - Matlazinca
IUCN Not ReportedNatural Park
90.19 km² overlap
Ciénegas del Lerma
IUCN VIFlora and Fauna Protection Area
30.26 km² overlap
Ciénegas de Lerma
IUCN Not ReportedWetland of International Importance (Ramsar Site)
30.26 km² overlap
National Park
17.65 km² overlap
8 more protected areassorted by overlap area
Sierra Morelos
IUCN Not ReportedState Park
12.60 km² overlap
Santuario del Agua y Forestal Subcuenca Tributaria Arroyo Sila
IUCN Not ReportedState Park
1.97 km² overlap
Alameda Poniente San José de la Pila
IUCN Not ReportedState Park
1.74 km² overlap
Tollocan - Calimaya
IUCN Not ReportedEcological Park
1.59 km² overlap
Tenancingo - Malinalco - Zumpahuacan
IUCN Not ReportedEcological Park
0.40 km² overlap
El Calvario
IUCN Not ReportedMunicipal Park
0.21 km² overlap
Laguna de Chignahuapan
IUCN Not ReportedMunicipal Park
0.09 km² overlap
San Miguel Ajusco
IUCN Not ReportedEcological Reserve
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 974 distinct species · 99 021 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Río Lerma : 26 espèces reliées par 70 interactions GloBI sur 5 types (connectance 11.8%, 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°
12,6°C
Annual rain
967mm
Moisture idx (CMI)
-0,28
Runoff
232mm/an
PET
1 357mm
AET
773mm
Mean slope
5,4°
Water table
270cm
Forest
80%
Crops
31%
Urban
40%
Protected
50%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)