HydroBASINS lev08 watershed · #2080441900
Bassin du Matz
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 2 administrative regions : Oise, Somme
Sub-basin area
171,4km²
Upstream area
171,4km²
Discharge
1,69m³/s
Mean elev.
91m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 163.3 km²94.9% of basin
- 8.7 km²5.1% of basin
42 communes (GADM L5)Available for FRA, RWA
- Roye-sur-Matz11.16 km²100% commune
- Élincourt-Sainte-Marguerite10.46 km²92% commune
- Conchy-les-Pots9.90 km²100% commune
- Orvillers-Sorel8.35 km²96% commune
- Cuvilly8.28 km²97% commune
- Mareuil-la-Motte8.26 km²94% commune
- Ressons-sur-Matz8.25 km²90% commune
- Chevincourt8.15 km²100% commune
- Margny-sur-Matz7.90 km²100% commune
- Boulogne-la-Grasse7.03 km²74% commune
- Canny-sur-Matz6.73 km²96% commune
- Marquéglise6.56 km²100% commune
- Beuvraignes6.55 km²45% commune
- Mélicocq5.97 km²90% commune
- Antheuil-Portes5.55 km²52% commune
- Ricquebourg4.75 km²100% commune
- Machemont4.43 km²72% commune
- Vandélicourt4.15 km²100% commune
- Biermont3.87 km²100% commune
- Gury3.58 km²71% commune
- Marest-sur-Matz3.22 km²100% commune
- Laberlière3.19 km²100% commune
- Fresnières3.14 km²100% commune
- La Neuville-sur-Ressons3.04 km²100% commune
- Lataule2.84 km²38% commune
- Mortemer2.40 km²35% commune
- Vignemont1.84 km²40% commune
- Amy1.83 km²15% commune
- Crapeaumesnil1.75 km²35% commune
- Tilloloy1.67 km²26% commune
- Villers-sur-Coudun1.63 km²24% commune
- Hainvillers1.41 km²45% commune
- Cambronne-lès-Ribécourt1.13 km²16% commune
- Thourotte0.90 km²22% commune
- Lassigny0.82 km²5% commune
- Bus-la-Mésière0.49 km²7% commune
- Plessis-de-Roye0.25 km²4% commune
- Cannectancourt0.22 km²3% commune
- Thiescourt0.13 km²1% commune
- Giraumont0.13 km²4% commune
- Belloy0.05 km²2% commune
- Monchy-Humières0.02 km²0% commune
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 331 distinct species · 44 497 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 du Matz : 17 espèces reliées par 123 interactions GloBI sur 6 types (connectance 24.8%, filtre Serrano α=0.2). 15 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°
10,2°C
Annual rain
643mm
Moisture idx (CMI)
-0,18
Runoff
306mm/an
PET
785mm
AET
538mm
Mean slope
2,4°
Water table
143cm
Forest
5%
Crops
58%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)