Commune · CHN
Shimen
China
Species observed
1 126
Observations
2 548
Area
3 986,1km²
Ecological tissue
Sample of 21 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 Shimen : 18 espèces reliées par 18 interactions GloBI sur 3 types (connectance 8.6%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
1 126 distinct species · 2 548 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
15,4°C
Annual rain
1 565mm
Warmest m°
29,1°C
Coldest m°
-1,1°C
Elevation: 493 m on average (min 50 m, max 1 834 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
5,8
Org. C
28,2g/kg
Clay
26,9%
Sand
29,9%
Silt
43,2%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiMaggregated to Changde
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology22 basins · 14 lakes · 34 rivers
Hydrology metrics for this exact territory
Stream length here
826,3km
Lake surface here
32,29km²
Basins crossed
22
Max stream order
6
Max drainage
89 607km²
Discharge in basins
331,8m³/s
Mean precip.
1 334mm/an
Mean T°
15,4°C
Moisture idx
0,20
Max snow
6%
Mean runoff
646mm/an
Mean elev. (basins)
487m
Watersheds crossing here
- Bassin de 渫水sub-area812,8 km²overlap683.60 km²17%
- Bassin de 仙阳河sub-area546,6 km²overlap535.99 km²13%
- Bassin de 洈水河sub-area1 801,5 km²overlap412.06 km²10%
- Bassin de 下河sub-area379,9 km²overlap370.69 km²9%
- Bassin de 渫水sub-area339,6 km²overlap330.35 km²8%
- Bassin de 道水sub-area1 302,3 km²overlap322.07 km²8%
- Bassin de 澧水sub-area956,1 km²overlap312.90 km²8%
- Bassin de 下深溪河sub-area258,6 km²overlap253.74 km²6%
- Bassin de 渫水sub-area189,9 km²overlap189.53 km²5%
13 more basinssorted by overlap
- Bassin de 失妻河sub-area284,1 km²overlap144.07 km²4%
- Bassin de 北溪河sub-area281,1 km²overlap117.23 km²3%
- Bassin de 油榨河sub-area107,7 km²overlap107.62 km²3%
- Bassin de 白洋河sub-area1 765,9 km²overlap106.75 km²3%
- Bassin de 涔水sub-area2 501,2 km²overlap72.75 km²2%
- Bassin de 娄水sub-area370,2 km²overlap10.18 km²0%
- Bassin de 澧水sub-area547,8 km²overlap9.45 km²0%
- Bassin de 渔洋河sub-area1 204,3 km²overlap5.01 km²0%
- Bassin de 娄水sub-area798,5 km²overlap1.68 km²0%
- Bassin de 沅江sub-area1 179,3 km²overlap0.34 km²0%
- Bassin de 娄水sub-area794,8 km²overlap0.09 km²0%
- Bassin de 清江sub-area443,3 km²overlap0.01 km²0%
- Bassin de 沅江sub-area926,2 km²overlap0.00 km²0%
Lakes (14, top by area)
- Lake #15353area24,1 km²avg depth9.1 m
- Mengquan Shuikuarea5,4 km²avg depth12.4 m
- 高桥水库area1,1 km²avg depth3.4 m
- 寺垭水库area1 km²avg depth4.1 m
- Lac 1379550area0,7 km²avg depth5.7 m
- Lac 1379970area0,7 km²avg depth4.3 m
- Lac 1379752area0,5 km²avg depth4.0 m
- Lac 1379651area0,4 km²avg depth4.0 m
- Lac 1379564area0,3 km²avg depth6.1 m
Rivers / streams (34, ord ≥ 4)
- 渫水ord 4len here223.82 km99%total226 km
- 澧水ord 6len here66.39 km9%total712 km
- 沱水ord 4len here61.01 km39%total157 km
- 仙阳河ord 3len here51.95 km100%total52 km
- 峡阳河ord 3len here43.35 km100%total43 km
- 下河ord 3len here29.66 km100%total30 km
- 黄虎港ord 3len here24.63 km100%total25 km
- 竹垭河ord 2len here23.59 km100%total24 km
- 道水ord 4len here21.10 km16%total133 km
- 油榨河ord 2len here20.73 km100%total21 km
- 道水南源ord 2len here19.72 km77%total26 km
- 九渡河ord 2len here19.47 km100%total19 km
22 more river segmentssorted by Strahler order + length
- 涔水ord 4len here17.53 km10%total170 km
- 失妻河ord 3len here16.97 km100%total17 km
- 道水北源ord 3len here16.01 km100%total16 km
- 商溪河ord 2len here14.28 km100%total14 km
- 泗潭河ord 4len here14.23 km89%total16 km
- 下深溪河ord 2len here14.07 km100%total14 km
- 龙头河ord 2len here12.97 km100%total13 km
- 道水北源东泉支ord 2len here11.98 km83%total15 km
- 洈水河ord 4len here11.85 km7%total161 km
- 北溪河ord 3len here11.77 km100%total12 km
- 石家河ord 3len here10.54 km100%total11 km
- 乾沟河ord 2len here9.45 km100%total9 km
- 小河ord 4len here9.13 km4%total244 km
- 江坪河ord 4len here9.07 km100%total9 km
- 板桥沟ord 2len here8.94 km100%total9 km
- 茅竹河ord 2len here6.92 km100%total7 km
- 鄢家河ord 3len here6.88 km14%total51 km
- 道水北源西泉支ord 2len here6.03 km46%total13 km
- 平洞河ord 1len here4.83 km100%total5 km
- 兜嘴河ord 2len here4.06 km100%total4 km
- 邱家河ord 1len here3.15 km100%total3 km
- 曲池河ord 3len here0.19 km3%total7 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
0,2nW
Built-up
43,3%
Pesticides
81,9kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)