HydroBASINS lev08 watershed · #6080849610
Bassin de Arroio Piquiri
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 : Cachoeira do Sul, Encruzilhada do Sul, Rio Pardo
Sub-basin area
1 908,3km²
Upstream area
1 908,3km²
Discharge
50,53m³/s
Mean elev.
189m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 1071.9 km²56.2% of basin
- 682.0 km²35.8% of basin
- 152.3 km²8.0% of basin
1 intersecting protected areas
Natural Heritage Private Reserve
1.58 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
338 distinct species · 938 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 Arroio Piquiri : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 38 interactions GloBI sur 2 types (connectance 8.2%, 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°
18,7°C
Annual rain
1 446mm
Moisture idx (CMI)
0,12
Runoff
835mm/an
PET
1 272mm
AET
1 082mm
Mean slope
3,8°
Water table
183cm
Forest
12%
Crops
10%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)