HydroBASINS lev08 watershed · #2080432640
Bassin de Avre
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
1 277km²
Upstream area
1 277,2km²
Discharge
15,43m³/s
Mean elev.
100m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 914.8 km²71.4% of basin
- 366.4 km²28.6% of basin
210 communes (GADM L5)Available for FRA, RWA
- Ailly-sur-Noye25.79 km²100% commune
- Boves25.55 km²100% commune
- Moreuil23.57 km²100% commune
- Grivesnes18.99 km²100% commune
- Breteuil17.32 km²100% commune
- Roye15.94 km²100% commune
- Hangest-en-Santerre15.14 km²100% commune
- Paillart14.76 km²100% commune
- Mailly-Raineval14.32 km²100% commune
- Welles-Pérennes13.98 km²100% commune
- Bonneuil-les-Eaux13.14 km²70% commune
- Arvillers13.14 km²100% commune
- Montdidier12.80 km²100% commune
- Sains-Morainvillers12.73 km²100% commune
- Piennes-Onvillers12.67 km²100% commune
- Rosières-en-Santerre12.24 km²91% commune
- Tricot12.04 km²98% commune
- Caix12.00 km²100% commune
- Démuin11.79 km²100% commune
- Rollot11.76 km²100% commune
- Le Quesnel11.56 km²100% commune
- Chaussoy-Epagny11.53 km²100% commune
- Davenescourt11.38 km²100% commune
- Saint-André-Farivillers11.13 km²95% commune
- Vendeuil-Caply10.98 km²100% commune
- Mézières-en-Santerre10.84 km²100% commune
- Cottenchy10.84 km²100% commune
- Amy10.67 km²85% commune
- Beauvoir10.38 km²100% commune
- Sains-en-Amiénois10.28 km²100% commune
- Saint-Fuscien10.12 km²100% commune
- Rocquencourt10.09 km²100% commune
- Esquennoy9.90 km²100% commune
- Le Plessier-Rozainvillers9.87 km²100% commune
- Marcelcave9.86 km²79% commune
- La Faloise9.65 km²100% commune
- Royaucourt9.43 km²100% commune
- Chepoix9.23 km²100% commune
- Coullemelle9.17 km²100% commune
- Fontaine-sous-Montdidier9.17 km²100% commune
- Le Frestoy-Vaux9.17 km²100% commune
- Lawarde-Mauger-l'Hortoy9.00 km²100% commune
- Jumel8.90 km²100% commune
- Domart-sur-la-Luce8.67 km²98% commune
- Guerbigny8.59 km²100% commune
- Harbonnières8.58 km²57% commune
- Erches8.34 km²100% commune
- Beuvraignes8.15 km²55% commune
- Thennes8.06 km²100% commune
- Ételfay8.04 km²100% commune
- Hardivillers8.00 km²79% commune
- Andechy7.80 km²100% commune
- Rumigny7.76 km²97% commune
- Chirmont7.55 km²100% commune
- Gannes7.55 km²86% commune
- Maisoncelle-Tuilerie7.54 km²100% commune
- Contoire7.31 km²100% commune
- Assainvillers7.23 km²100% commune
- Rouvrel7.23 km²100% commune
- Braches7.12 km²100% commune
- Hallivillers7.08 km²100% commune
- Laboissière-en-Santerre7.08 km²100% commune
- Méharicourt7.07 km²100% commune
- Tartigny7.00 km²100% commune
- Thézy-Glimont6.96 km²100% commune
- Quiry-le-Sec6.95 km²100% commune
- Guillaucourt6.84 km²100% commune
- Oresmaux6.70 km²63% commune
- Dommartin6.63 km²100% commune
- Grattepanche6.57 km²100% commune
- Fignières6.47 km²100% commune
- Morisel6.45 km²100% commune
- Laucourt6.45 km²100% commune
- Faverolles6.42 km²100% commune
- Courcelles-Epayelles6.41 km²100% commune
- Lignières6.37 km²100% commune
- Bus-la-Mésière6.37 km²93% commune
- Villers-lès-Roye6.30 km²100% commune
- Sainte-Eusoye6.24 km²77% commune
- Maignelay-Montigny6.23 km²33% commune
- Louvrechy6.21 km²100% commune
- Dancourt-Popincourt6.21 km²100% commune
- Beaucourt-en-Santerre6.18 km²100% commune
- Becquigny6.05 km²100% commune
- Wiencourt-l'Équipée6.02 km²100% commune
- Folleville5.95 km²100% commune
- Estrées-sur-Noye5.95 km²100% commune
- Vrély5.86 km²100% commune
- Oursel-Maison5.84 km²83% commune
- Hangard5.83 km²94% commune
- Marquivillers5.81 km²100% commune
- Parvillers-le-Quesnoy5.81 km²60% commune
- Villers-Tournelle5.80 km²100% commune
- Avricourt5.75 km²81% commune
- Bacouël5.71 km²100% commune
- Mesnil-Saint-Georges5.69 km²100% commune
- Esclainvillers5.63 km²100% commune
- Roiglise5.61 km²100% commune
- Bonvillers5.49 km²97% commune
- Méry-la-Bataille5.44 km²47% commune
- Hargicourt5.42 km²100% commune
- Cayeux-en-Santerre5.41 km²100% commune
- Carrépuis5.40 km²99% commune
- Goyencourt5.24 km²100% commune
- Troussencourt5.23 km²100% commune
- Gratibus5.23 km²100% commune
- Sourdon5.19 km²100% commune
- Godenvillers5.18 km²100% commune
- Thory5.16 km²100% commune
- Cagny5.14 km²100% commune
- Fresnoy-lès-Roye5.12 km²65% commune
- Sauvillers-Mongival5.06 km²100% commune
- L'Échelle-Saint-Aurin5.05 km²100% commune
- Fescamps5.04 km²100% commune
- Remiencourt5.02 km²100% commune
- Broyes4.99 km²100% commune
- Damery4.97 km²100% commune
- Beaulieu-les-Fontaines4.92 km²38% commune
- Gentelles4.92 km²91% commune
- Tilloloy4.87 km²74% commune
- La Hérelle4.86 km²100% commune
- Beaufort-en-Santerre4.85 km²100% commune
- Hailles4.84 km²100% commune
- Verpillières4.84 km²100% commune
- Ferrières4.81 km²100% commune
- Folies4.78 km²84% commune
- Ayencourt4.77 km²100% commune
- La Neuville-Sire-Bernard4.72 km²100% commune
- Mory-Montcrux4.70 km²100% commune
- Margny-aux-Cerises4.66 km²100% commune
- Aubvillers4.63 km²100% commune
- Malpart4.49 km²100% commune
- Mortemer4.47 km²65% commune
- Bayonvillers4.39 km²53% commune
- Gruny4.34 km²60% commune
- Courtemanche4.31 km²100% commune
- Amiens4.23 km²8% commune
- Pierrepont-sur-Avre4.21 km²100% commune
- Coivrel4.15 km²66% commune
- Villers-aux-Érables4.15 km²100% commune
- Bouchoir4.13 km²71% commune
- Le Ployron4.09 km²100% commune
- Rubescourt4.08 km²100% commune
- Rouvroy-les-Merles4.00 km²100% commune
- Remaugies3.97 km²100% commune
- Cantigny3.92 km²100% commune
- Ignaucourt3.86 km²100% commune
- Champien3.84 km²42% commune
- Dury3.84 km²34% commune
- Plainville3.83 km²100% commune
- Essertaux3.83 km²56% commune
- Saint-Mard3.82 km²100% commune
- Aubercourt3.79 km²100% commune
- Fresnoy-en-Chaussée3.79 km²100% commune
- Villers-Vicomte3.79 km²75% commune
- Fléchy3.78 km²81% commune
- Le Mesnil-Saint-Firmin3.74 km²100% commune
- Ansauvillers3.69 km²52% commune
- Bouillancourt-la-Bataille3.69 km²100% commune
- Fouencamps3.68 km²100% commune
- Puits-la-Vallée3.47 km²83% commune
- Warvillers3.46 km²84% commune
- Guyencourt-sur-Noye3.45 km²100% commune
- Boussicourt3.40 km²100% commune
- Sérévillers3.40 km²100% commune
- Grivillers3.36 km²100% commune
- Noyers-Saint-Martin3.31 km²24% commune
- Crapeaumesnil3.18 km²65% commune
- Crèvecœur-le-Petit3.10 km²100% commune
- Brunvillers-la-Motte2.99 km²47% commune
- Lihons2.96 km²24% commune
- Warsy2.94 km²100% commune
- Flers-sur-Noye2.92 km²58% commune
- Froissy2.85 km²43% commune
- Domfront2.71 km²100% commune
- Berteaucourt-lès-Thennes2.67 km²100% commune
- Campremy2.55 km²26% commune
- Villers-Bretonneux2.55 km²17% commune
- Le Cardonnois2.55 km²100% commune
- Boulogne-la-Grasse2.45 km²26% commune
- Dompierre2.44 km²100% commune
- Marestmontiers2.32 km²100% commune
- Armancourt1.91 km²100% commune
- Hainvillers1.74 km²55% commune
- Rouvroy-en-Santerre1.55 km²20% commune
- Longueau1.38 km²39% commune
- Francastel1.23 km²9% commune
- Montgérain1.15 km²24% commune
- Fransures1.10 km²25% commune
- Lataule1.08 km²14% commune
- Saint-Sauflieu0.96 km²12% commune
- Vauvillers0.89 km²15% commune
- Blangy-Tronville0.88 km²7% commune
- Glisy0.78 km²13% commune
- Maucourt0.74 km²22% commune
- Cachy0.71 km²11% commune
- Hébécourt0.62 km²13% commune
- Lamotte-Warfusée0.59 km²7% commune
- Candor0.53 km²6% commune
- Belloy0.45 km²17% commune
- Crémery0.32 km²12% commune
- Orvillers-Sorel0.31 km²4% commune
- Lassigny0.19 km²1% commune
- Fouquescourt0.15 km²3% commune
- Plainval0.09 km²1% commune
- Thieux0.06 km²1% commune
- Ognolles0.03 km²0% commune
- Liancourt-Fosse0.01 km²0% commune
- Cuvilly0.00 km²0% commune
- Le Crocq0.00 km²0% commune
20 intersecting protected areas
Wetland of International Importance (Ramsar Site)
19.53 km² overlap
Tourbières et marais de l'Avre
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.21 km² overlap
Étangs et marais du bassin de la Somme
IUCN Not ReportedSpecial Protection Area (Birds Directive)
3.01 km² overlap
Réseau de coteaux crayeux du bassin de l'Oise aval (Beauvaisis)
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.46 km² overlap
le marais de genonville
IUCN IVLand acquired by a regional conservatory of natural areas
0.39 km² overlap
le marais de hailles
IUCN IVLand acquired by a regional conservatory of natural areas
0.24 km² overlap
Marais De Genonville
IUCN IVBiotope Protection Order
0.24 km² overlap
rnn l etang saint ladre
IUCN IVLand acquired by a regional conservatory of natural areas
0.13 km² overlap
Étang Saint-Ladre
IUCN IVNational Nature Reserve
0.13 km² overlap
11 more protected areassorted by overlap area
La Montagne Sous Les Brosses
IUCN IVBiotope Protection Order
0.08 km² overlap
Coteau De Fignières
IUCN IVBiotope Protection Order
0.04 km² overlap
le larris du brule
IUCN IVLand acquired by a regional conservatory of natural areas
0.04 km² overlap
la vallee grand mere
IUCN IVLand acquired by a regional conservatory of natural areas
0.03 km² overlap
la montagne des gres
IUCN IVLand acquired by a regional conservatory of natural areas
0.03 km² overlap
Marais de la moyenne Somme entre Amiens et Corbie
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.01 km² overlap
Geotope Protection Order
0.01 km² overlap
Le Quaternaire de la vallée de la Somme, formation fluviatile IV ou V, Thennes_nord
IUCN Not ReportedGeotope Protection Order
0.01 km² overlap
la sole des mauvaises terres
IUCN IVLand acquired by a regional conservatory of natural areas
0.01 km² overlap
Le Quaternaire de la vallée de la Somme, loess et paléosols du Pléistocène sup., Sourdon
IUCN Not ReportedGeotope Protection Order
0.00 km² overlap
le fort de grattepanche
IUCN IVLand acquired by a regional conservatory of natural areas
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 830 distinct species · 484 116 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Avre : 28 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 117 interactions GloBI sur 6 types (connectance 15.8%, filtre Serrano α=0.2). 11 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°
10,1°C
Annual rain
655mm
Moisture idx (CMI)
-0,15
Runoff
374mm/an
PET
771mm
AET
539mm
Mean slope
1,6°
Water table
99cm
Forest
0%
Crops
71%
Urban
2%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)