Nez Perce National Historical Park

Location:Idaho, United States
IUCN Category:V
Area:2,076 acres (840 hectares)
Species:All  Endangered  Invasive
Website:View website
Map:View Google Map
Climate:View Climate Data
Land Use:View Land Use Data

Ecoregions

North Central Rockies forests
Palouse grasslands

Soils

Link to Map
Protected Area Boundary
 AB
   
Share60 %30 %10 %70 %30 %
Soil TypeLuvic PhaeozemsLithosolsOrthic LuvisolsLuvic KastanozemsLithosols
Topsoil TextureMediumMediumMediumMediumMedium
Reference Depth100 cm10 cm100 cm100 cm10 cm
DrainageImperfectlyImperfectlyModerately wellImperfectlyImperfectly
Available Water Capacity50 m15 mm150 m50 m15 mm
Phase 1Lithic  Lithic 
Topsoil Properties
Gravel4 %26 %4 %8 %26 %
Sand35 %43 %47 %36 %43 %
Silt41 %34 %32 %41 %34 %
Clay24 %23 %21 %23 %23 %
USDA TextureLoamLoamLoamLoamLoam
Reference Bulk Density1.37 g/cm³1.39 g/cm³1.41 g/cm³1.38 g/cm³1.39 g/cm³
Bulk Density1.28 g/cm³1.3 g/cm³1.42 g/cm³1.2 g/cm³1.3 g/cm³
Organic Carbon1.68 %1.4 %0.82 %1.27 %1.4 %
PH6.27.66.27.37.6
Clay Cation Exchange Capacity52 cmol kg⁻¹42 cmol kg⁻¹35 cmol kg⁻¹66 cmol kg⁻¹42 cmol kg⁻¹
Soil Cation Exchange Capacity19 cmol kg⁻¹15 cmol kg⁻¹11 cmol kg⁻¹23 cmol kg⁻¹15 cmol kg⁻¹
Base Saturation87 %100 %88 %100 %100 %
Total Exchangeable Bases16.1 cmol kg⁻¹15.6 cmol kg⁻¹8.3 cmol kg⁻¹18.4 cmol kg⁻¹15.6 cmol kg⁻¹
Calcium Carbonate0 %3.9 %0 %4.5 %3.9 %
Calcium Sulphate0 %0 %0 %0 %0 %
Exchangeable Sodium2 %4 %1 %3 %4 %
Electrical Conductivity0.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-1
Subsoil Properties
Gravel5 % 5 %5 % 
Sand30 % 40 %29 % 
Silt36 % 29 %42 % 
Clay34 % 31 %29 % 
USDA TextureClay loam Clay loamClay loam 
Reference Bulk Density1.31 g/cm³ 1.34 g/cm³1.33 g/cm³ 
Bulk Density1.37 g/cm³ 1.5 g/cm³1.18 g/cm³ 
Organic Carbon0.69 % 0.39 %0.57 % 
PH6.8 6.27.9 
Clay Cation Exchange Capacity64 cmol kg⁻¹ 33 cmol kg⁻¹68 cmol kg⁻¹ 
Soil Cation Exchange Capacity24 cmol kg⁻¹ 12 cmol kg⁻¹24 cmol kg⁻¹ 
Base Saturation92 % 87 %100 % 
Total Exchangeable Bases23.8 cmol kg⁻¹ 9.6 cmol kg⁻¹21.1 cmol kg⁻¹ 
Calcium Carbonate0.4 % 0 %10 % 
Calcium Sulphate0 % 0 %0 % 
Exchangeable Sodium2 % 1 %3 % 
Electrical Conductivity0.1 dS m-1 0.1 dS m-13.6 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.