HydroBASINS lev08 watershed · #7080002910

Bassin de Rio Chiquihuat

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 : Armenia, Caluco, Cuisnahuat, Izalco, Juayúa +8

Pfafstetter: 77115106

Sub-basin area

485,9km²

Upstream area

486,1km²

Discharge

18,76m³/s

Mean elev.

490m

Administrative coverage

13 dept-equivalent regions (GADM L2)

Izalco
Sonsonate · El Salvador
155.8 km²
32.2% of basin
Sonsonate
Sonsonate · El Salvador
108.4 km²
22.4% of basin
San Julián
Sonsonate · El Salvador
61.9 km²
12.8% of basin
Caluco
Sonsonate · El Salvador
50.2 km²
10.4% of basin
Nahulingo
Sonsonate · El Salvador
34.6 km²
7.2% of basin
Nahuizalco
Sonsonate · El Salvador
17.0 km²
3.5% of basin
Cuisnahuat
Sonsonate · El Salvador
16.4 km²
3.4% of basin
Tepecoyo
La Libertad · El Salvador
10.1 km²
2.1% of basin

5 moreFull L2 list

Juayúa8.4 km² · 1.7%
Santa Ana8.2 km² · 1.7%
Sonzacate6.8 km² · 1.4%
Armenia6.3 km² · 1.3%
San Antonio del Monte0.0 km² · 0.0%

9 intersecting protected areas

Apaneca-Ilamatepec
IUCN Not Applicable
UNESCO-MAB Biosphere Reserve
128.30 km² overlap
Los Volcanes
IUCN II
National Park
19.12 km² overlap
Las Victorias
IUCN Not Reported
Natural Protected Area
1.85 km² overlap
Santa Marta Las Trincheras
IUCN Not Reported
Natural Protected Area
1.17 km² overlap
Los Lagartos
IUCN Not Reported
Natural Protected Area
1.01 km² overlap
San Eugenio y La Concordia
IUCN Not Reported
Natural Protected Area
0.37 km² overlap
San Isidro
IUCN III
Natural Monument
0.29 km² overlap
La Chapina o Cerro Las Ovejas
IUCN Not Reported
Natural Protected Area
0.19 km² overlap
El Carmen-Bosque Nueve
IUCN Not Reported
Natural Protected Area
0.07 km² overlap

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

Species present

1 828 distinct species · 43 444 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 28 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

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Rio Chiquihuat : 21 espèces + 7 bulles famille, 27 interactions GloBI documentées sur 3 types (connectance 7.1%, filtre Serrano α=0.2). Les 7 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées

Interactions affichées

Connectance

0.071

Patrimoniales

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°

23,8°C

Annual rain

1 910mm

Moisture idx (CMI)

0,11

Runoff

978mm/an

PET

1 693mm

AET

1 112mm

Mean slope

6,0°

Water table

213cm

Forest

89%

Crops

12%

Urban

11%

Protected

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