HydroBASINS lev08 watershed · #6080791680
Bassin de Río Calchaquí
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 3 administrative regions : Cachi, Molinos, San Carlos
Sub-basin area
967,7km²
Upstream area
4 335,7km²
Discharge
25,7m³/s
Mean elev.
2 748m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Tintín472 km²
- Bassin de Río Calchaquí51 km²
3 dept-equivalent regions (GADM L2)
- 649.2 km²67.2% of basin
- 313.4 km²32.5% of basin
- 3.2 km²0.3% of basin
1 intersecting protected areas
Los Cardones
IUCN IINational Park
0.76 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
349 distinct species · 3 232 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Calchaquí : 17 espèces reliées par 43 interactions GloBI sur 5 types (connectance 8.7%, filtre Serrano α=0.2). 15 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°
11,8°C
Annual rain
155mm
Moisture idx (CMI)
-0,88
Runoff
120mm/an
PET
1 322mm
AET
134mm
Mean slope
11,4°
Water table
602cm
Forest
1%
Crops
1%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)