Black Canyon of the Gunnison National Park

Location:Colorado, United States
IUCN Category:II
Area:12,551 acres (5,079 hectares)
Species:All  Endangered  Invasive
Website:View website
Map:View Google Map
Climate:View Climate Data
Land Use:View Land Use Data

Ecoregions

Colorado Plateau shrublands

Soils

Link to Map
Protected Area Boundary
 A
  
Share50 %30 %10 %10 %
Soil TypeCalcaric RegosolsLuvic YermosolsHaplic YermosolsLithosols
Topsoil TextureMediumMediumMediumMedium
Reference Depth100 cm100 cm100 cm10 cm
DrainageModerately wellModerately wellModerately wellImperfectly
Available Water Capacity100 m150 m150 m15 mm
Phase 1Stony   
Topsoil Properties
Gravel17 %20 %20 %26 %
Sand43 %50 %41 %43 %
Silt35 %29 %39 %34 %
Clay22 %21 %20 %23 %
USDA TextureLoamLoamLoamLoam
Reference Bulk Density1.4 g/cm³1.42 g/cm³1.41 g/cm³1.39 g/cm³
Bulk Density1.4 g/cm³1.5 g/cm³1.51 g/cm³1.3 g/cm³
Organic Carbon0.77 %0.4 %0.41 %1.4 %
PH87.38.37.6
Clay Cation Exchange Capacity40 cmol kg⁻¹47 cmol kg⁻¹47 cmol kg⁻¹42 cmol kg⁻¹
Soil Cation Exchange Capacity17 cmol kg⁻¹7 cmol kg⁻¹8 cmol kg⁻¹15 cmol kg⁻¹
Base Saturation100 %100 %100 %100 %
Total Exchangeable Bases31.1 cmol kg⁻¹14 cmol kg⁻¹18.1 cmol kg⁻¹15.6 cmol kg⁻¹
Calcium Carbonate15 %0.5 %1.5 %3.9 %
Calcium Sulphate0 %0.1 %0.1 %0 %
Exchangeable Sodium2 %6 %6 %4 %
Electrical Conductivity0.3 dS m-10.1 dS m-11 dS m-10.1 dS m-1
Subsoil Properties
Gravel18 %27 %27 % 
Sand38 %44 %38 % 
Silt36 %28 %40 % 
Clay26 %28 %22 % 
USDA TextureLoamClay loamLoam 
Reference Bulk Density1.36 g/cm³1.37 g/cm³1.39 g/cm³ 
Bulk Density1.52 g/cm³1.47 g/cm³1.49 g/cm³ 
Organic Carbon0.53 %0.28 %0.22 % 
PH8.17.38.3 
Clay Cation Exchange Capacity50 cmol kg⁻¹58 cmol kg⁻¹42 cmol kg⁻¹ 
Soil Cation Exchange Capacity15 cmol kg⁻¹11 cmol kg⁻¹9 cmol kg⁻¹ 
Base Saturation100 %100 %100 % 
Total Exchangeable Bases41.1 cmol kg⁻¹14.6 cmol kg⁻¹26.8 cmol kg⁻¹ 
Calcium Carbonate15 %3.8 %4.5 % 
Calcium Sulphate0 %0.7 %0.7 % 
Exchangeable Sodium1 %4 %5 % 
Electrical Conductivity0.3 dS m-19.7 dS m-13.8 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.