HydroBASINS lev08 watershed · #2080472700
Bassin de Vieux Rhin / Altrhein
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 9 administrative regions across 3 countries : Arlesheim, Bas-Rhin, Basel, Breisgau-Hochschwarzwald, Emmendingen +4
Sub-basin area
1 382km²
Upstream area
37 526,4km²
Discharge
1 082,56m³/s
Mean elev.
313m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 3 basins
- Bassin de Wiese455 km²
- Bassin de Birsig101 km²
- Bassin · #208010357036 km²
9 dept-equivalent regions (GADM L2)
- 515.0 km²37.2% of basin
- 416.6 km²30.1% of basin
- Lörrach222.8 km²16.1% of basin
- Emmendingen110.9 km²8.0% of basin
- 92.5 km²6.7% of basin
- 13.3 km²1.0% of basin
- Arlesheim7.4 km²0.5% of basin
- Freiburg im Breisgau6.2 km²0.5% of basin
1 moreFull L2 list
- Basel1.2 km² · 0.1%
76 communes (GADM L5)Available for FRA, RWA
- Ottmarsheim26.01 km²100% commune
- Bantzenheim21.35 km²100% commune
- Marckolsheim20.29 km²61% commune
- Petit-Landau18.45 km²100% commune
- Saint-Louis17.57 km²100% commune
- Blodelsheim17.11 km²83% commune
- Rumersheim-le-Haut16.87 km²99% commune
- Heiteren16.28 km²73% commune
- Kembs16.27 km²100% commune
- Blotzheim14.82 km²100% commune
- Fessenheim14.45 km²79% commune
- Hombourg14.45 km²100% commune
- Rhinau14.30 km²82% commune
- Bartenheim13.19 km²99% commune
- Schœnau10.22 km²100% commune
- Nambsheim10.03 km²100% commune
- Hésingue9.06 km²100% commune
- Obersaasheim8.93 km²69% commune
- Niffer8.62 km²100% commune
- Geiswasser8.07 km²100% commune
- Sundhouse7.90 km²48% commune
- Balgau7.58 km²78% commune
- Michelbach-le-Haut7.51 km²94% commune
- Mackenheim7.26 km²60% commune
- Village-Neuf7.04 km²100% commune
- Artolsheim6.88 km²61% commune
- Hégenheim6.83 km²100% commune
- Sierentz6.70 km²50% commune
- Saasenheim6.67 km²86% commune
- Biesheim6.62 km²40% commune
- Rosenau6.37 km²100% commune
- Diebolsheim6.27 km²90% commune
- Kunheim6.26 km²54% commune
- Hagenthal-le-Bas6.02 km²100% commune
- Helfrantzkirch5.50 km²86% commune
- Attenschwiller5.08 km²100% commune
- Folgensbourg5.03 km²75% commune
- Vogelgrun5.02 km²100% commune
- Hagenthal-le-Haut4.85 km²96% commune
- Michelbach-le-Bas4.84 km²100% commune
- Wentzwiller4.84 km²100% commune
- Boofzheim4.84 km²41% commune
- Kappelen4.83 km²94% commune
- Baltzenheim4.54 km²69% commune
- Chalampé4.52 km²100% commune
- Ranspach-le-Bas4.48 km²100% commune
- Ranspach-le-Haut4.09 km²93% commune
- Battenheim4.06 km²25% commune
- Buschwiller3.98 km²100% commune
- Volgelsheim3.89 km²44% commune
- Artzenheim3.88 km²39% commune
- Algolsheim3.71 km²51% commune
- Neuwiller3.69 km²97% commune
- Friesenheim3.62 km²30% commune
- Baldersheim3.39 km²28% commune
- Habsheim3.35 km²21% commune
- Brinckheim3.19 km²97% commune
- Huningue2.58 km²95% commune
- Dietwiller2.50 km²22% commune
- Schlierbach2.47 km²22% commune
- Bootzheim2.37 km²45% commune
- Richtolsheim1.69 km²48% commune
- Sausheim1.29 km²7% commune
- Rixheim1.07 km²5% commune
- Rustenhart0.76 km²6% commune
- Geispitzen0.64 km²11% commune
- Stetten0.56 km²14% commune
- Leymen0.45 km²4% commune
- Munchhouse0.36 km²2% commune
- Bettlach0.31 km²7% commune
- Roggenhouse0.19 km²3% commune
- Obenheim0.18 km²2% commune
- Liebenswiller0.12 km²3% commune
- Knœringue0.09 km²2% commune
- Wittisheim0.02 km²0% commune
- Berentzwiller0.00 km²0% commune
30 intersecting protected areas
Rhin supérieur / Oberrhein
IUCN Not ReportedWetland of International Importance (Ramsar Site)
99.60 km² overlap
Forêt domaniale de la Harth
IUCN Not ReportedSpecial Protection Area (Birds Directive)
79.65 km² overlap
Landscape Protection Area
53.36 km² overlap
Vallée du Rhin de Strasbourg à Marckolsheim
IUCN Not ReportedSpecial Protection Area (Birds Directive)
50.90 km² overlap
Kaiserstuhl
IUCN Not ReportedSpecial Protection Area (Birds Directive)
49.56 km² overlap
Vallée du Rhin d'Artzenheim à Village-Neuf
IUCN Not ReportedSpecial Protection Area (Birds Directive)
48.93 km² overlap
Rheinniederung Sasbach - Wittenweier
IUCN Not ReportedSpecial Protection Area (Birds Directive)
42.24 km² overlap
Blauen
IUCN VLandscape Protection Area
39.11 km² overlap
Zones agricoles de la Hardt
IUCN Not ReportedSpecial Protection Area (Birds Directive)
34.67 km² overlap
21 more protected areassorted by overlap area
Secteur Alluvial Rhin-Ried-Bruch, Haut-Rhin
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
33.73 km² overlap
Taubergießen, Elz und Ettenbach
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
33.51 km² overlap
Markgräfler Hügelland mit Schwarzwaldhängen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
32.61 km² overlap
Secteur Alluvial Rhin-Ried-Bruch, Bas-Rhin
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
32.10 km² overlap
Rheinniederung Neuenburg - Breisach
IUCN Not ReportedSpecial Protection Area (Birds Directive)
27.81 km² overlap
Markgräfler Rheinebene von Neuenburg bis Breisach
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
23.61 km² overlap
Schönberg mit Schwarzwaldhängen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
18.53 km² overlap
Bremgarten
IUCN Not ReportedSpecial Protection Area (Birds Directive)
16.94 km² overlap
Markgräfler Rheinebene von Weil bis Neuenburg
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
15.26 km² overlap
Landscape Protection Area
14.82 km² overlap
Taubergießen
IUCN IVNature Reserve
14.81 km² overlap
Rheinniederung Haltingen - Neuenburg mit Vorbergzone
IUCN Not ReportedSpecial Protection Area (Birds Directive)
14.75 km² overlap
Le Rhin
IUCN IVNational Hunting and Wildlife Reserve
14.08 km² overlap
Rheinniederung Wyhl-Weisweil
IUCN IVNature Reserve
14.08 km² overlap
Hardt nord
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
11.61 km² overlap
Rheinniederung Breisach - Sasbach mit Limberg
IUCN Not ReportedSpecial Protection Area (Birds Directive)
11.16 km² overlap
Südschwarzwald
IUCN Not ReportedSpecial Protection Area (Birds Directive)
10.61 km² overlap
Rheinniederung von Breisach bis Sasbach
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
10.14 km² overlap
Kaiserstuhl
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
10.04 km² overlap
Petite Camargue Alsacienne
IUCN IVNational Nature Reserve
8.93 km² overlap
Rheinauenwälder
IUCN VLandscape Protection Area
5.81 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
10 750 distinct species · 697 760 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 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 Vieux Rhin / Altrhein : 34 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 78 interactions GloBI sur 6 types (connectance 8.6%, 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°
9,7°C
Annual rain
784mm
Moisture idx (CMI)
-0,04
Runoff
565mm/an
PET
802mm
AET
612mm
Mean slope
4,3°
Water table
140cm
Forest
50%
Crops
41%
Urban
16%
Protected
14%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)