HydroBASINS lev08 watershed · #7080760830
Bassin de Trinity River
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 : Chambers, Liberty, San Jacinto
Sub-basin area
1 502,6km²
Upstream area
45 824,2km²
Discharge
297,58m³/s
Mean elev.
30m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Menard Creek442 km²
- Bassin de Trinity River156 km²
3 dept-equivalent regions (GADM L2)
- Liberty1218.6 km²81.2% of basin
- 214.7 km²14.3% of basin
- Chambers67.7 km²4.5% of basin
3 intersecting protected areas
Trinity River
IUCN IVNational Wildlife Refuge
115.62 km² overlap
Gum Bayou
IUCN VPreserve
0.40 km² overlap
Big Thicket
IUCN VNational Preserve
0.33 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 200 distinct species · 111 095 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Trinity River : 24 espèces reliées par 76 interactions GloBI sur 3 types (connectance 11.4%, filtre Serrano α=0.2). 13 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°
19,7°C
Annual rain
1 322mm
Moisture idx (CMI)
-0,09
Runoff
502mm/an
PET
1 452mm
AET
1 095mm
Mean slope
0,6°
Water table
31cm
Forest
82%
Crops
18%
Urban
1%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)