Carrizo Plain Preserve

Location:California, United States
IUCN Category:Ia
Area:7,550 acres (3,055 hectares)
Species:All  Endangered  Invasive
Map:View Google Map
Climate:View Climate Data
Land Use:View Land Use Data

Ecoregions

California interior chaparral and woodlands

Soils

Link to Map
Protected Area Boundary
 A
  
Share50 %20 %20 %10 %
Soil TypeChromic LuvisolsChromic VertisolsEutric RegosolsLithosols
Topsoil TextureFineFineMediumMedium
Reference Depth100 cm100 cm100 cm10 cm
DrainageModerately wellPoorModerately wellImperfectly
Available Water Capacity100 m125 m150 m15 mm
Phase 1Stony   
Misc. Property Vertic (cracks of more than 1 cm wide)  
Topsoil Properties
Gravel4 %4 %27 %26 %
Sand26 %16 %47 %43 %
Silt27 %29 %34 %34 %
Clay47 %55 %19 %23 %
USDA TextureClayClayLoamLoam
Reference Bulk Density1.25 g/cm³1.21 g/cm³1.43 g/cm³1.39 g/cm³
Bulk Density1.35 g/cm³1.65 g/cm³1.21 g/cm³1.3 g/cm³
Organic Carbon1.22 %0.75 %0.97 %1.4 %
PH6.37.96.47.6
Clay Cation Exchange Capacity29 cmol kg⁻¹75 cmol kg⁻¹41 cmol kg⁻¹42 cmol kg⁻¹
Soil Cation Exchange Capacity18 cmol kg⁻¹44 cmol kg⁻¹12 cmol kg⁻¹15 cmol kg⁻¹
Base Saturation77 %100 %79 %100 %
Total Exchangeable Bases13.4 cmol kg⁻¹45.2 cmol kg⁻¹15.1 cmol kg⁻¹15.6 cmol kg⁻¹
Calcium Carbonate0 %2.5 %0 %3.9 %
Calcium Sulphate0 %0 %0 %0 %
Exchangeable Sodium1 %1 %1 %4 %
Electrical Conductivity0.1 dS m-10.2 dS m-10.1 dS m-10.1 dS m-1
Subsoil Properties
Gravel7 %5 %28 % 
Sand21 %15 %50 % 
Silt25 %28 %32 % 
Clay54 %57 %18 % 
USDA TextureClayClayLoam 
Reference Bulk Density1.22 g/cm³1.21 g/cm³1.44 g/cm³ 
Bulk Density1.4 g/cm³1.76 g/cm³1.46 g/cm³ 
Organic Carbon0.58 %0.45 %0.4 % 
PH6.48.16.9 
Clay Cation Exchange Capacity33 cmol kg⁻¹73 cmol kg⁻¹55 cmol kg⁻¹ 
Soil Cation Exchange Capacity19 cmol kg⁻¹43 cmol kg⁻¹11 cmol kg⁻¹ 
Base Saturation82 %100 %85 % 
Total Exchangeable Bases13.1 cmol kg⁻¹47.5 cmol kg⁻¹10.3 cmol kg⁻¹ 
Calcium Carbonate0.1 %3.9 %0.1 % 
Calcium Sulphate0 %0 %0 % 
Exchangeable Sodium1 %3 %2 % 
Electrical Conductivity0.1 dS m-10.3 dS m-10.1 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.