HydroBASINS lev08 watershed · #2080402080
Bassin de Ilm
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 10 administrative regions : Burgenlandkreis, Erfurt, Hildburghausen, Ilm-Kreis, Jena +5
Sub-basin area
1 007,3km²
Upstream area
1 007,3km²
Discharge
5,28m³/s
Mean elev.
369m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
10 dept-equivalent regions (GADM L2)
- 548.4 km²54.2% of basin
- 291.9 km²28.9% of basin
- 76.1 km²7.5% of basin
- 54.2 km²5.4% of basin
- 21.2 km²2.1% of basin
- 9.9 km²1.0% of basin
- 7.4 km²0.7% of basin
- 1.6 km²0.2% of basin
2 moreFull L2 list
- Hildburghausen0.1 km² · 0.0%
- Erfurt0.0 km² · 0.0%
30 intersecting protected areas
Landscape Protection Area
181.43 km² overlap
Thüringer Wald
IUCN Not Assignedbiosphere reserve
97.58 km² overlap
Thüringer Wald, Entwicklungszone
IUCN Not Assignedbiosphere reserve - transition area
85.41 km² overlap
Ackerhügelland nördlich Weimar mit Ettersberg
IUCN Not ReportedSpecial Protection Area (Birds Directive)
56.94 km² overlap
Mittlerer Thüringer Wald
IUCN Not ReportedSpecial Protection Area (Birds Directive)
51.10 km² overlap
Thüringer Wald
IUCN VLandscape Protection Area
25.42 km² overlap
Ilmtal zwischen Bad Berka und Weimar mit Buchfarter Wald
IUCN Not ReportedSpecial Protection Area (Birds Directive)
19.21 km² overlap
Langer Berg - Buntsandstein-Waldland um Paulinzella
IUCN Not ReportedSpecial Protection Area (Birds Directive)
18.06 km² overlap
Finne-Triasland
IUCN VLandscape Protection Area
18.04 km² overlap
21 more protected areassorted by overlap area
Ilmtal zwischen Bad Berka und Weimar mit Buchfarter Wald
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
17.76 km² overlap
Muschelkalkhänge der westlichen Saaleplatte
IUCN Not ReportedSpecial Protection Area (Birds Directive)
13.05 km² overlap
Thüringer Wald, Pflegezone
IUCN Not Assignedbiosphere reserve - buffer zone
10.16 km² overlap
Großer Ettersberg
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
6.50 km² overlap
Muschelkalkgebiet südöstlich Erfurt
IUCN Not ReportedSpecial Protection Area (Birds Directive)
5.41 km² overlap
Rinne - Rottenbachtal
IUCN VLandscape Protection Area
5.19 km² overlap
Erbskopf - Marktal und Morast - Gabeltäler
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.02 km² overlap
Riechheimer Berg - Königsstuhl
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.80 km² overlap
Großes Holz - Sperlingsberg
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.60 km² overlap
Südhang Ettersberg
IUCN IVNature Reserve
4.08 km² overlap
Pennewitzer Teiche - Unteres Wohlrosetal
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.69 km² overlap
Nature Reserve
3.68 km² overlap
Kalmberg
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.45 km² overlap
Ilm-Aue von Gräfinau-Angstedt bis Stadtilm
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.15 km² overlap
Edelmannsberg
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.78 km² overlap
Unteres Ilmtal
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.78 km² overlap
Thüringer Wald, Kernzone
IUCN Not Assignedbiosphere reserve - core area
2.00 km² overlap
Klosterholz
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.35 km² overlap
Saale
IUCN VLandscape Protection Area
1.31 km² overlap
Lichtenburg nordwestlich Eckartsberga
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.94 km² overlap
Finne-Hänge bei Auerstedt
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.84 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 216 distinct species · 92 775 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Ilm : 23 espèces reliées par 154 interactions GloBI sur 6 types (connectance 23.1%, filtre Serrano α=0.2). 14 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°
7,6°C
Annual rain
624mm
Moisture idx (CMI)
-0,14
Runoff
169mm/an
PET
722mm
AET
514mm
Mean slope
4,2°
Water table
322cm
Forest
20%
Crops
42%
Urban
8%
Protected
33%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)