Rocherpan Nature Reserve

Location:Western Cape, South Africa
IUCN Category:IV
Area:2,303 acres (932 hectares)
Species:All  Endangered  Invasive
Climate:View Climate Data
Land Use:View Land Use Data
Köppen climate classification:BSk (Climate: arid; Precipitation: steppe; Temperature: cold arid)

Ecoregions

Lowland fynbos and renosterveld

Soils

Protected Area Boundary
 A
  
Share71 %19 %10 %
Soil TypeAlbic ArenosolsEutric PlanosolsAlbic Arenosols
Topsoil TextureCoarseCoarseCoarse
Reference Depth100 cm100 cm100 cm
DrainageSomewhat excessivePoorSomewhat excessive
Available Water Capacity100 m150 m100 m
Topsoil Properties
Gravel1 %1 %1 %
Sand86 %95 %86 %
Silt9 %1 %9 %
Clay5 %4 %5 %
USDA TextureLoamy sandSandLoamy sand
Reference Bulk Density1.69 g/cm³1.74 g/cm³1.69 g/cm³
Bulk Density1.54 g/cm³1.47 g/cm³1.54 g/cm³
Organic Carbon0.37 %0.1 %0.37 %
PH5.475.4
Clay Cation Exchange Capacity35 cmol kg⁻¹24 cmol kg⁻¹35 cmol kg⁻¹
Soil Cation Exchange Capacity3 cmol kg⁻¹1 cmol kg⁻¹3 cmol kg⁻¹
Base Saturation62 %100 %62 %
Total Exchangeable Bases1.9 cmol kg⁻¹1 cmol kg⁻¹1.9 cmol kg⁻¹
Calcium Carbonate0 %2 %0 %
Calcium Sulphate0 %0.1 %0 %
Exchangeable Sodium3 %3 %3 %
Electrical Conductivity0 dS m-10.1 dS m-10 dS m-1
Subsoil Properties
Gravel1 %1 %1 %
Sand88 %90 %88 %
Silt8 %1 %8 %
Clay4 %9 %4 %
USDA TextureSandSandSand
Reference Bulk Density1.73 g/cm³1.62 g/cm³1.73 g/cm³
Bulk Density1.56 g/cm³1.51 g/cm³1.56 g/cm³
Organic Carbon0.14 %0.16 %0.14 %
PH5.57.75.5
Clay Cation Exchange Capacity20 cmol kg⁻¹19 cmol kg⁻¹20 cmol kg⁻¹
Soil Cation Exchange Capacity1 cmol kg⁻¹2 cmol kg⁻¹1 cmol kg⁻¹
Base Saturation55 %100 %55 %
Total Exchangeable Bases0.6 cmol kg⁻¹2 cmol kg⁻¹0.6 cmol kg⁻¹
Calcium Carbonate0 %2 %0 %
Calcium Sulphate0 %0.1 %0 %
Exchangeable Sodium4 %8 %4 %
Electrical Conductivity0 dS m-10.2 dS m-10 dS m-1
Soil data provided by FAO/IIASA/ISRIC/ISSCAS/JRC, 2012. Harmonized World Soil Database (version 1.2). FAO, Rome, Italy and IIASA, Laxenburg, Austria.
Köppen climate classification provided by Kottek, M., J. Grieser, C. Beck, B. Rudolf, and F. Rubel, 2006: World Map of Köppen-Geiger Climate Classification updated. Meteorol. Z., 15, 259-263