HydroBASINS lev08 watershed · #7080875500
Bassin de Río Lempa
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 10 administrative regions : Agua Caliente, Aguilares, El Paisnal, Embalse Cerron Grande, La Palma +5
Sub-basin area
477km²
Upstream area
6 440,9km²
Discharge
137,68m³/s
Mean elev.
458m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Sucio851 km²
- Bassin de Río Lempa34 km²
10 dept-equivalent regions (GADM L2)
- Nueva ConcepciónChalatenango · El Salvador175.4 km²36.9% of basin
- Agua CalienteChalatenango · El Salvador115.1 km²24.2% of basin
- El PaisnalSan Salvador · El Salvador72.9 km²15.3% of basin
- La ReinaChalatenango · El Salvador70.0 km²14.7% of basin
- TejutlaChalatenango · El Salvador9.7 km²2.0% of basin
- Santa Rosa GuachipilínSanta Ana · El Salvador8.1 km²1.7% of basin
- La PalmaChalatenango · El Salvador7.6 km²1.6% of basin
- Embalse Cerron GrandeChalatenango · El Salvador7.5 km²1.6% of basin
3 intersecting protected areas
Embalse Cerrón Grande
IUCN Not ReportedWetland of International Importance (Ramsar Site)
91.62 km² overlap
Trifinio-Fraternidad
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
5.59 km² overlap
Piedras Tontas
IUCN Not ReportedNatural Protected Area
2.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
444 distinct species · 5 601 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 Lempa : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) + 4 bulles famille, 31 interactions GloBI documentées sur 3 types (connectance 5.2%, filtre Serrano α=0.2). Les 4 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
24,2°C
Annual rain
1 725mm
Moisture idx (CMI)
-0,03
Runoff
745mm/an
PET
1 785mm
AET
1 153mm
Mean slope
7,8°
Water table
286cm
Forest
12%
Crops
55%
Urban
9%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)