Sichuan Changshagongma Wetlands
IUCN IaWetland of International Importance (Ramsar Site) · 2018
6 702 km²
Commune · CHN
Sêrxü
China
ETPolar, tundra(91 %)
Species observed
551
Observations
2 670
Area
20 963,8km²
Ecological tissue
Sample of 36 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).
RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique
Indicateurs du tissu écologique
Tissu écologique de Sêrxü : 24 espèces reliées par 57 interactions GloBI sur 3 types (connectance 8.6%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
37
Interactions affichées
57
Connectance
0.086
Patrimoniales
0
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
551 distinct species · 2 670 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
-4,8°C
Annual rain
855mm
Warmest m°
12,4°C
Coldest m°
-26,2°C
Elevation: 4 488 m on average (min 3 310 m, max 5 043 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
-4,8°C
Annual rain
855mm
Warmest month
12,4°C
Coldest month
-26,2°C
Mean alt.
4 488m
Min
3 310m
Max
5 043m
Std. dev.
252m
Köppen-Geiger (dominant)
ETPolar, tundra(91 %)Polar
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,8
Org. C
50,6g/kg
Clay
17,9%
Sand
41,3%
Silt
40,8%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: paGLiMaggregated to Garzê Tibetan
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,8
Org. C
65,0g/kg
Clay
16,9%
Sand
42,1%
Silt
41,0%
5–15 cm
pH H₂O
6,8
Org. C
58,4g/kg
Clay
18,0%
Sand
41,2%
Silt
40,8%
15–30 cm
pH H₂O
6,8
Org. C
28,3g/kg
Clay
18,8%
Sand
40,4%
Silt
40,8%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest1.6%
Crops0.0%
Built-up0.0%
Bare soil12.3%
Other (grassland, water…)86.0%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology37 basins · 2 lakes · 16 rivers
Hydrology metrics for this exact territory
Stream length here
1 496,9km
Lake surface here
0,65km²
Basins crossed
37
Max stream order
7
Max drainage
151 116km²
Discharge in basins
976,4m³/s
Mean precip.
506mm/an
Mean T°
-1,4°C
Moisture idx
-0,26
Max snow
22%
Mean runoff
283mm/an
Mean elev. (basins)
4 462m
Watersheds crossing here
- Bassin de 雅砻江sub-area4 074,2 km²overlap2849.10 km²14%
- Bassin de 金沙江sub-area11 363,2 km²overlap2252.25 km²11%
- Bassin de 俄柯河sub-area2 094,7 km²overlap2090.22 km²10%
- Bassin de 鄂曲sub-area2 083,8 km²overlap2080.65 km²10%
- Bassin de 牙河sub-area1 732,1 km²overlap1707.50 km²8%
- Bassin de 通把河sub-area1 365,3 km²overlap1364.50 km²7%
- Bassin de 雅砻江sub-area1 165,1 km²overlap1164.49 km²6%
- Bassin de 翁曲sub-area763,7 km²overlap763.33 km²4%
- Bassin de 三岔河sub-area1 812,8 km²overlap675.60 km²3%
28 more basinssorted by overlap
- Bassin de 麻摩柯河sub-area667,7 km²overlap666.30 km²3%
- Bassin de 雅砻江sub-area662,5 km²overlap662.23 km²3%
- Bassin de 雅砻江sub-area613,2 km²overlap612.89 km²3%
- Bassin de 麻摩柯河sub-area604,3 km²overlap604.14 km²3%
- Basin #54450sub-area520,5 km²overlap518.74 km²2%
- Bassin de 芒曲sub-area466,8 km²overlap466.53 km²2%
- Bassin de 麻摩柯河sub-area422,3 km²overlap422.08 km²2%
- Bassin de 麻摩柯河sub-area375,2 km²overlap374.94 km²2%
- Basin #62470sub-area341,9 km²overlap341.75 km²2%
- Bassin de 雅砻江sub-area329,8 km²overlap329.62 km²2%
- Basin #51930sub-area292,1 km²overlap287.31 km²1%
- Basin #54270sub-area211,3 km²overlap211.15 km²1%
- Bassin de 雅砻江sub-area539,7 km²overlap145.83 km²1%
- Bassin de 雅砻江sub-area106,5 km²overlap106.48 km²1%
- Bassin de 雅砻江sub-area51,4 km²overlap51.40 km²0%
- Bassin de 雅砻江sub-area49,3 km²overlap49.23 km²0%
- Bassin de 热曲sub-area1 287,9 km²overlap43.04 km²0%
- Bassin de 雅砻江sub-area38,6 km²overlap38.59 km²0%
- Bassin de 雅砻江sub-area19 km²overlap18.96 km²0%
- Bassin de 科曲sub-area2 461,8 km²overlap16.11 km²0%
- Bassin de heliusub-area705,5 km²overlap10.79 km²0%
- Bassin de 雅砻江sub-area1 069,1 km²overlap10.18 km²0%
- Bassin de 通天河sub-area2 873,9 km²overlap9.67 km²0%
- Bassin de heliusub-area1 652,1 km²overlap7.45 km²0%
- Bassin de 雅砻江sub-area1 801,7 km²overlap5.27 km²0%
- Bassin de 雅砻江sub-area285,3 km²overlap3.41 km²0%
- Bassin de 达曲sub-area1 765,7 km²overlap1.97 km²0%
- Bassin de 定曲sub-area955,9 km²overlap0.14 km²0%
Lakes (2, top by area)
Rivers / streams (16, ord ≥ 4)
- 雅砻江ord 7len here431.17 km13%total3198 km
- 牙河ord 4len here173.24 km98%total177 km
- 麻摩柯河ord 5len here167.17 km100%total167 km
- 金沙江ord 8len here155.59 km3%total4654 km
- 翁曲ord 3len here101.49 km100%total102 km
- heliuord 6len here90.48 km43%total210 km
- 鄂曲ord 4len here89.52 km100%total90 km
- 通把河ord 4len here86.61 km100%total87 km
- 俄柯河ord 6len here65.09 km100%total65 km
- 芒柯沟ord 3len here40.65 km97%total42 km
- 翁琼ord 2len here33.89 km100%total34 km
- 前柯ord 3len here29.61 km60%total49 km
4 more river segmentssorted by Strahler order + length
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,0nW
Built-up
0,1%
Pesticides
0,1kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas1
IUCN Ia · 1
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN