Jean Lafitte National Hist. Park & Preserve

Location:Louisiana, United States
IUCN Category:II
Area:17,686 acres (7,157 hectares)
Species:All  Endangered  Invasive
Website:View website
Climate:View Climate Data
Land Use:View Land Use Data

Ecoregions

Mississippi lowland forests
Western Gulf Coastal grasslands

Soils

Link to Map
Protected Area Boundary
 AB
   
Share40 %20 %20 %20 % 
Soil TypeEutric GleysolsOrthic SolonetzGleyic LuvisolsHumic GleysolsHistosols
Topsoil TextureFineMediumMediumMediumMedium
Reference Depth100 cm100 cm100 cm100 cm100 cm
DrainageVery poorModerately wellPoorPoorVery poor
Available Water Capacity150 m150 m150 m150 m150 m
Topsoil Properties
Gravel7 %6 %5 %4 %15 %
Sand17 %47 %42 %33 %26 %
Silt31 %28 %36 %45 %35 %
Clay52 %25 %22 %22 %39 %
USDA TextureClayLoamLoamLoamClay
Reference Bulk Density1.22 g/cm³1.39 g/cm³1.4 g/cm³1.38 g/cm³1.28 g/cm³
Bulk Density1.25 g/cm³1.53 g/cm³1.4 g/cm³1.2 g/cm³0.26 g/cm³
Organic Carbon1.25 %0.66 %0.94 %3.71 %35.27 %
PH5.88.16.15.55
Clay Cation Exchange Capacity38 cmol kg⁻¹46 cmol kg⁻¹46 cmol kg⁻¹33 cmol kg⁻¹45 cmol kg⁻¹
Soil Cation Exchange Capacity26 cmol kg⁻¹16 cmol kg⁻¹14 cmol kg⁻¹18 cmol kg⁻¹80 cmol kg⁻¹
Base Saturation78 %100 %89 %34 %64 %
Total Exchangeable Bases19.7 cmol kg⁻¹21.1 cmol kg⁻¹9.8 cmol kg⁻¹3.1 cmol kg⁻¹45.4 cmol kg⁻¹
Calcium Carbonate0 %5.8 %0 %0 %0 %
Calcium Sulphate0 %0 %0 %0 %0 %
Exchangeable Sodium2 %13 %1 %2 %1 %
Electrical Conductivity0.1 dS m-10.6 dS m-10.1 dS m-10.1 dS m-10.1 dS m-1
Subsoil Properties
Gravel1 %8 %6 %5 %1 %
Sand19 %40 %35 %37 %43 %
Silt29 %27 %32 %35 %28 %
Clay52 %33 %33 %28 %29 %
USDA TextureClayClay loamClay loamClay loamLoam
Reference Bulk Density1.23 g/cm³1.33 g/cm³1.32 g/cm³1.35 g/cm³1.35 g/cm³
Bulk Density1.36 g/cm³1.58 g/cm³1.59 g/cm³1.46 g/cm³0.16 g/cm³
Organic Carbon0.45 %0.29 %0.28 %0.69 %33.85 %
PH5.98.56.55.65.2
Clay Cation Exchange Capacity39 cmol kg⁻¹57 cmol kg⁻¹45 cmol kg⁻¹41 cmol kg⁻¹49 cmol kg⁻¹
Soil Cation Exchange Capacity23 cmol kg⁻¹19 cmol kg⁻¹15 cmol kg⁻¹11 cmol kg⁻¹79 cmol kg⁻¹
Base Saturation84 %100 %96 %62 %59 %
Total Exchangeable Bases17.1 cmol kg⁻¹35.7 cmol kg⁻¹14.3 cmol kg⁻¹9 cmol kg⁻¹55.3 cmol kg⁻¹
Calcium Carbonate0 %7.4 %0 %0 %0 %
Calcium Sulphate0 %0.1 %0 %0 %0 %
Exchangeable Sodium2 %39 %1 %4 %1 %
Electrical Conductivity0.1 dS m-12.7 dS m-10.1 dS m-10.1 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.