Sandveld Nature Reserve
IUCN Not ReportedNature Reserve · 1980
311 km²
Commune · ZAF
Nala
South Africa
BSkArid, steppe, cold(94 %)
Species observed
826
Observations
18 156
Area
4 128,8km²
Ecological tissue
Sample of 27 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 Nala : 25 espèces reliées par 19 interactions GloBI sur 3 types (connectance 5.4%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
27
Interactions affichées
19
Connectance
0.054
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
826 distinct species · 18 156 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
17,5°C
Annual rain
544mm
Warmest m°
29,8°C
Coldest m°
2,3°C
Elevation: 1 286 m on average (min 1 233 m, max 1 349 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
17,5°C
Annual rain
544mm
Warmest month
29,8°C
Coldest month
2,3°C
Mean alt.
1 286m
Min
1 233m
Max
1 349m
Std. dev.
18m
Köppen-Geiger (dominant)
BSkArid, steppe, cold(94 %)Arid
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,9
Org. C
9,0g/kg
Clay
21,5%
Sand
72,1%
Silt
6,5%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: vbGLiMaggregated to Lejweleputswa
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,8
Org. C
12,9g/kg
Clay
20,3%
Sand
73,1%
Silt
6,6%
5–15 cm
pH H₂O
6,8
Org. C
7,8g/kg
Clay
19,3%
Sand
74,2%
Silt
6,6%
15–30 cm
pH H₂O
7,0
Org. C
6,3g/kg
Clay
24,8%
Sand
68,9%
Silt
6,3%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest1.8%
Crops71.7%
Built-up0.2%
Bare soil3.1%
Other (grassland, water…)23.3%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology16 basins · 12 lakes · 7 rivers
Hydrology metrics for this exact territory
Stream length here
298,1km
Lake surface here
6,57km²
Basins crossed
16
Max stream order
6
Max drainage
85 630km²
Discharge in basins
218,9m³/s
Mean precip.
562mm/an
Mean T°
16,9°C
Moisture idx
-0,64
Mean runoff
31mm/an
Mean elev. (basins)
1 308m
Watersheds crossing here
- Bassin de Sandspruitsub-area1 456,6 km²overlap1054.89 km²26%
- Basin #59070sub-area1 499,6 km²overlap797.64 km²19%
- Bassin de Vaal Riversub-area2 083,8 km²overlap534.61 km²13%
- Bassin de Vals Riversub-area679,7 km²overlap427.93 km²10%
- Bassin de Vaal Riversub-area858,9 km²overlap304.74 km²7%
- Bassin de Vet Riversub-area1 470,1 km²overlap240.93 km²6%
- Bassin de Vaal Riversub-area793,8 km²overlap203.87 km²5%
- Bassin de Vet Riversub-area361,3 km²overlap188.20 km²5%
- Bassin de Vaal Riversub-area193,6 km²overlap145.18 km²4%
7 more basinssorted by overlap
- Bassin de Otterspruitsub-area1 204,3 km²overlap142.29 km²3%
- Bassin de Vals Riversub-area1 178,5 km²overlap52.69 km²1%
- Bassin de Sand Riversub-area510,3 km²overlap22.04 km²1%
- Bassin de Vaal Riversub-area19,7 km²overlap12.64 km²0%
- Bassin de Vet Riversub-area1 010,9 km²overlap0.74 km²0%
- Bassin de Vetriviersub-area865,1 km²overlap0.32 km²0%
- Bassin de Makwassiespruitsub-area1 246,2 km²overlap0.06 km²0%
Lakes (12, top by area)
- Lake #83557area2,5 km²avg depth4.0 m
- Lake #83519area1,2 km²avg depth2.0 m
- Lac 1420004area0,8 km²avg depth2.5 m
- Lac 1420321area0,6 km²avg depth4.1 m
- Lac 1420333area0,3 km²avg depth3.2 m
- Lac 1420387area0,2 km²avg depth2.4 m
- Lac 1420625area0,2 km²avg depth2.7 m
- Lac 1420423area0,2 km²avg depth2.1 m
- Lac 1420358area0,2 km²avg depth2.3 m
Rivers / streams (7, ord ≥ 4)
- Vaal Riverord 7len here130.37 km6%total2358 km
- Vals Riverord 6len here59.35 km13%total448 km
- Vet Riverord 5len here41.96 km25%total167 km
- Otterspruitord 4len here28.65 km100%total29 km
- Sandspruitord 3len here27.82 km10%total275 km
- Sand Riverord 4len here5.62 km2%total314 km
- Sandvet Irrigation Schemeord 1len here4.35 km34%total13 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,2nW
Built-up
19,2%
Pesticides
26,4kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas11
IUCN Not Reported · 11
Clerkstroom Private Nature Reserve
IUCN Not ReportedNature Reserve · 1997
38 km²
Modderfontein Reserve
IUCN Not ReportedNature Reserve · 2000
30 km²
Hoffman Private Nature Reserve
IUCN Not ReportedNature Reserve · 1968
23 km²
Wolwespruit Nature Reserve
IUCN Not ReportedNature Reserve · 2025
18 km²
Bloudrif Reserve
IUCN Not ReportedNature Reserve · 1998
16 km²
Complete list11 protected areas
- Sandveld Nature ReserveNature ReserveIUCN Not Reported1980311 km²
- Clerkstroom Private Nature ReserveNature ReserveIUCN Not Reported199738 km²
- Modderfontein ReserveNature ReserveIUCN Not Reported200030 km²
- Hoffman Private Nature ReserveNature ReserveIUCN Not Reported196823 km²
- Wolwespruit Nature ReserveNature ReserveIUCN Not Reported202518 km²
- Bloudrif ReserveNature ReserveIUCN Not Reported199816 km²
- Stroomdrift Private Nature ReserveNature ReserveIUCN Not Reported196914 km²
- Brakfontein ReserveNature ReserveIUCN Not Reported199814 km²
- Las Vacus Private Nature ReserveNature ReserveIUCN Not Reported199312 km²
- Kaaldraai Game ReserveNature ReserveIUCN Not Reported20019 km²
- Winterhoek ReserveNature ReserveIUCN Not Reported19985 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN