HydroBASINS lev08 watershed · #2080361190
Bassin de Grenzaa
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 7 administrative regions across 2 countries : Borger-Odoorn, Coevorden, Emmen, Emsland, Grafschaft Bentheim +2
Sub-basin area
832,5km²
Upstream area
832,7km²
Discharge
11,21m³/s
Mean elev.
16m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
7 dept-equivalent regions (GADM L2)
- 299.1 km²35.8% of basin
- 233.0 km²27.9% of basin
- 177.0 km²21.2% of basin
- 89.8 km²10.7% of basin
- 22.1 km²2.6% of basin
- 13.0 km²1.5% of basin
- 1.9 km²0.2% of basin
23 intersecting protected areas
NNN-DR
IUCN Not AssignedNature Reserves owned by professional nature management organizations
74.31 km² overlap
Dalum-Wietmarscher Moor und Georgsdorfer Moor
IUCN Not ReportedSpecial Protection Area (Birds Directive)
25.56 km² overlap
Bargerveen
IUCN IVWetland of International Importance (Ramsar Site)
18.96 km² overlap
Bargerveen
IUCN IVNature Conservation Act
18.96 km² overlap
Bargerveen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
18.96 km² overlap
Bargerveen
IUCN Not ReportedSpecial Protection Area (Birds Directive)
18.96 km² overlap
Dalum-Wietmarscher Moor
IUCN IVNature Reserve
14.89 km² overlap
Emstal
IUCN VLandscape Protection Area
5.08 km² overlap
Provinzialmoor
IUCN IVNature Reserve
3.98 km² overlap
14 more protected areassorted by overlap area
Hochmoor Ringe
IUCN IVNature Reserve
1.43 km² overlap
Neuringer Wiesen
IUCN IVNature Reserve
1.18 km² overlap
Nature Reserve
0.81 km² overlap
Engdener Wüste
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.78 km² overlap
Emstal
IUCN VLandscape Protection Area
0.71 km² overlap
Heseper Moor, Engdener Wüste
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.48 km² overlap
Paradies Kleinringe
IUCN VLandscape Protection Area
0.45 km² overlap
Hengstkampkuhlen
IUCN IVNature Reserve
0.43 km² overlap
Hootmanns Meer
IUCN IVNature Reserve
0.30 km² overlap
Moorschlatts und Heiden in Wachendorf
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.08 km² overlap
Nature Reserve
0.08 km² overlap
Laarsche Bruch
IUCN IVNature Reserve
0.07 km² overlap
Meerkolk
IUCN IVNature Reserve
0.04 km² overlap
Lamberg
IUCN VLandscape Protection Area
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
7 408 distinct species · 580 149 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 Grenzaa : 28 espèces + 6 bulles famille, 88 interactions GloBI documentées sur 5 types (connectance 15.7%, filtre Serrano α=0.2). Les 6 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
8,9°C
Annual rain
779mm
Moisture idx (CMI)
0,11
Runoff
428mm/an
PET
694mm
AET
547mm
Mean slope
0,2°
Water table
16cm
Forest
5%
Crops
46%
Urban
9%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)