Pikyry Biological Refuge

Location:Paraguay
IUCN Category:IV
Area:2,898 acres (1,173 hectares)
Species:All  Endangered  Invasive
Climate:View Climate Data
Land Use:View Land Use Data
Köppen climate classification:Cfa (Climate: warm temperate; Precipitation: fully humid; Temperature: hot summer)

Ecoregions

Alta Paraná Atlantic forests

Soils

Protected Area Boundary
 A
  
Share45 %15 %25 %15 %
Soil TypeRhodic NitisolsHaplic FerralsolsHaplic NitisolsEutric Leptosols
Topsoil TextureMediumFineFineMedium
Reference Depth100 cm100 cm100 cm30 cm
DrainageModerately wellModerately wellModerately wellImperfectly
Available Water Capacity150 m150 m150 m50 mm
Topsoil Properties
Gravel0 %0 %2 %13 %
Sand63 %8 %21 %31 %
Silt21 %16 %36 %37 %
Clay16 %76 %43 %32 %
USDA TextureSandy loamClay (heavy)ClayClay loam
Reference Bulk Density1.48 g/cm³1.14 g/cm³1.25 g/cm³1.32 g/cm³
Bulk Density1.18 g/cm³1.2 g/cm³1.24 g/cm³1.33 g/cm³
Organic Carbon0.91 %0.16 %1.2 %1.9 %
PH54.35.65.7
Clay Cation Exchange Capacity15 cmol kg⁻¹11 cmol kg⁻¹16 cmol kg⁻¹28 cmol kg⁻¹
Soil Cation Exchange Capacity7 cmol kg⁻¹9 cmol kg⁻¹15 cmol kg⁻¹15 cmol kg⁻¹
Base Saturation54 %40 %55 %87 %
Total Exchangeable Bases3.8 cmol kg⁻¹3.6 cmol kg⁻¹8.3 cmol kg⁻¹13.1 cmol kg⁻¹
Calcium Carbonate0 %0 %0 %0 %
Calcium Sulphate0 %0 %0 %0 %
Exchangeable Sodium2 %1 %2 %1 %
Electrical Conductivity0 dS m-10 dS m-10 dS m-10 dS m-1
Subsoil Properties
Gravel0 %0 %3 % 
Sand35 %6 %15 % 
Silt19 %13 %19 % 
Clay46 %81 %66 % 
USDA TextureClayClay (heavy)Clay (heavy) 
Reference Bulk Density1.27 g/cm³1.13 g/cm³1.18 g/cm³ 
Bulk Density1.21 g/cm³1.24 g/cm³1.42 g/cm³ 
Organic Carbon0.71 %0.11 %0.64 % 
PH6.24.35.8 
Clay Cation Exchange Capacity13 cmol kg⁻¹10 cmol kg⁻¹18 cmol kg⁻¹ 
Soil Cation Exchange Capacity9 cmol kg⁻¹8 cmol kg⁻¹19 cmol kg⁻¹ 
Base Saturation79 %40 %69 % 
Total Exchangeable Bases7.1 cmol kg⁻¹3.2 cmol kg⁻¹13.1 cmol kg⁻¹ 
Calcium Carbonate0 %0 %0 % 
Calcium Sulphate0 %0 %0 % 
Exchangeable Sodium3 %2 %1 % 
Electrical Conductivity0 dS m-10 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