Commune · CHN
Markam
China
Species observed
892
Observations
2 996
Area
11 640,1km²
Ecological tissue
Sample of 9 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 Markam : 8 espèces reliées par 6 interactions GloBI sur 1 type (connectance 16.7%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
892 distinct species · 2 996 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
2,2°C
Annual rain
739mm
Warmest m°
15,3°C
Coldest m°
-15,9°C
Elevation: 4 118 m on average (min 2 334 m, max 5 521 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
6,3
Org. C
46,9g/kg
Clay
17,9%
Sand
44,0%
Silt
38,1%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: smGLiMaggregated to Chamdo
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)
Hydrology20 basins · 2 lakes · 16 rivers
Hydrology metrics for this exact territory
Stream length here
1 018,1km
Lake surface here
16,86km²
Basins crossed
20
Max stream order
7
Max drainage
190 293km²
Discharge in basins
1 930,7m³/s
Mean precip.
558mm/an
Mean T°
3,0°C
Moisture idx
-0,31
Max snow
21%
Mean runoff
216mm/an
Mean elev. (basins)
4 145m
Watersheds crossing here
- Bassin de 达拉河sub-area2 764,1 km²overlap2460.76 km²21%
- Bassin de 中岩曲sub-area2 594,4 km²overlap2336.84 km²20%
- Bassin de 扎曲sub-area2 790,4 km²overlap1866.31 km²16%
- Bassin de 金沙江sub-area5 325,5 km²overlap966.91 km²8%
- Bassin de 扎曲sub-area1 056,6 km²overlap966.05 km²8%
- Basin #82900sub-area965,6 km²overlap956.88 km²8%
- Bassin de 金沙江sub-area1 543,3 km²overlap819.16 km²7%
- Bassin de 扎曲sub-area713,7 km²overlap591.06 km²5%
- Bassin de 扎曲sub-area489,6 km²overlap169.43 km²1%
11 more basinssorted by overlap
- Bassin de 扎曲sub-area1 902,1 km²overlap153.18 km²1%
- Bassin de 金沙江sub-area483,3 km²overlap151.50 km²1%
- Bassin de 归达曲sub-area1 086,7 km²overlap129.22 km²1%
- Bassin de 金沙江sub-area690,1 km²overlap59.32 km²1%
- Bassin de 玉曲sub-area2 146,7 km²overlap6.49 km²0%
- Bassin de 玉曲sub-area270,9 km²overlap2.46 km²0%
- Bassin de 玉曲sub-area1 200 km²overlap1.43 km²0%
- Bassin de 金沙江sub-area1 576,4 km²overlap1.37 km²0%
- Bassin de 阿东河sub-area469,4 km²overlap1.10 km²0%
- Bassin de 昌曲sub-area1 353,1 km²overlap0.53 km²0%
- Bassin de 若曲sub-area876,2 km²overlap0.12 km²0%
Lakes (2, top by area)
Rivers / streams (16, ord ≥ 4)
- 扎曲ord 6len here250.90 km17%total1469 km
- 达拉河ord 7len here181.13 km93%total194 km
- 金沙江ord 8len here174.99 km4%total4654 km
- 黑曲ord 3len here129.52 km100%total130 km
- 中岩曲ord 7len here114.48 km77%total148 km
- 拉拉奇嘿ord 2len here50.89 km100%total51 km
- 澜沧江ord 7len here38.03 km1%total2941 km
- 西曲ord 3len here19.84 km91%total22 km
- 刚达曲ord 3len here14.04 km100%total14 km
- 扎曲 (瀾滄江)ord 6len here12.26 km39%total31 km
- 然朗曲ord 2len here11.18 km66%total17 km
- vqord 1len here8.54 km100%total9 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
0,3%
Pesticides
30,8kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)