HydroBASINS lev08 watershed · #7080684080
Bassin de Walnut Creek
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 6 administrative regions : Barrow, Clarke, Gwinnett, Hall, Jackson +1
Sub-basin area
1 220,1km²
Upstream area
1 220,5km²
Discharge
18,97m³/s
Mean elev.
269m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
6 dept-equivalent regions (GADM L2)
- Jackson392.5 km²32.2% of basin
- 265.8 km²21.8% of basin
- 249.7 km²20.5% of basin
- 145.3 km²11.9% of basin
- Clarke95.9 km²7.9% of basin
- 70.6 km²5.8% of basin
20 intersecting protected areas
Allen Creek
IUCN VWildlife Management Area
6.22 km² overlap
Preserve
6.04 km² overlap
Little Mulberry
IUCN VPark
3.43 km² overlap
Whitehall
IUCN VForest
2.44 km² overlap
Thompson Mill
IUCN VForest
1.44 km² overlap
2013043
IUCN Not AssignedConservation Easement
1.26 km² overlap
Botanical Gardens
1.20 km² overlap
Tuggle Road
IUCN VCounty Preserve or Natural Area
0.47 km² overlap
Chicopee Woods Golf Course Mitigation
IUCN Not AssignedMitigation Bank
0.46 km² overlap
11 more protected areassorted by overlap area
2012108
IUCN Not AssignedConservation Easement
0.41 km² overlap
Chicopee Woods Naure
IUCN VPreserve
0.35 km² overlap
2012112
IUCN Not AssignedConservation Easement
0.21 km² overlap
Williams Mill
IUCN IIIGreenspace
0.19 km² overlap
Cook
IUCN VConservation Easement
0.18 km² overlap
Oconee
IUCN VForest Park
0.12 km² overlap
Restrictive Covenant (DOD/DOE)
0.10 km² overlap
Rowland
IUCN Not AssignedConservation Easement
0.06 km² overlap
Atlantic Coast Conservancy/Pelican Coast Conservancy Conservation Easement E201302A
IUCN Not AssignedConservation Easement
0.04 km² overlap
Naval Supply Corps
IUCN VSchool
0.02 km² overlap
Middle Oconee
IUCN Not AssignedMitigation Bank
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 051 distinct species · 632 863 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Walnut Creek : 23 espèces reliées par 68 interactions GloBI sur 4 types (connectance 11.4%, filtre Serrano α=0.2). 12 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°
15,7°C
Annual rain
1 333mm
Moisture idx (CMI)
0,01
Runoff
495mm/an
PET
1 317mm
AET
996mm
Mean slope
2,3°
Water table
127cm
Forest
87%
Crops
22%
Urban
19%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)