Heath and Marjorie Angelo Coast Range Preserve

Location:California, United States
IUCN Category:Ia
Area:7,008 acres (2,836 hectares)
Species:All  Endangered  Invasive
Website:View website
Climate:View Climate Data
Land Use:View Land Use Data
Köppen climate classification:Csb (Climate: warm temperate; Precipitation: summer dry; Temperature: warm summer)


Northern California coastal forests


Link to Map
Protected Area Boundary
Share60 %20 %20 %
Soil TypeHumic AcrisolsHaplic PhaeozemsHumic Cambisols
Topsoil TextureMediumMediumMedium
Reference Depth100 cm100 cm100 cm
DrainageModerately wellModerately wellModerately well
Available Water Capacity150 m150 m150 m
Topsoil Properties
Gravel5 %7 %8 %
Sand46 %39 %41 %
Silt30 %38 %36 %
Clay24 %23 %23 %
USDA TextureLoamLoamLoam
Reference Bulk Density1.39 g/cm³1.38 g/cm³1.39 g/cm³
Bulk Density1.3 g/cm³1.33 g/cm³1.1 g/cm³
Organic Carbon1.73 %1.83 %2.72 %
Clay Cation Exchange Capacity19 cmol kg⁻¹55 cmol kg⁻¹54 cmol kg⁻¹
Soil Cation Exchange Capacity9 cmol kg⁻¹18 cmol kg⁻¹21 cmol kg⁻¹
Base Saturation27 %87 %24 %
Total Exchangeable Bases2.5 cmol kg⁻¹11.4 cmol kg⁻¹5 cmol kg⁻¹
Calcium Carbonate0 %0 %0 %
Calcium Sulphate0 %0 %0 %
Exchangeable Sodium1 %1 %1 %
Electrical Conductivity0.1 dS m-10.1 dS m-10.1 dS m-1
Subsoil Properties
Gravel7 %3 %8 %
Sand41 %43 %44 %
Silt26 %35 %32 %
Clay33 %22 %24 %
USDA TextureClay loamLoamLoam
Reference Bulk Density1.34 g/cm³1.4 g/cm³1.39 g/cm³
Bulk Density1.35 g/cm³1.39 g/cm³1.16 g/cm³
Organic Carbon0.77 %0.64 %1.03 %
Clay Cation Exchange Capacity15 cmol kg⁻¹64 cmol kg⁻¹38 cmol kg⁻¹
Soil Cation Exchange Capacity7 cmol kg⁻¹16 cmol kg⁻¹15 cmol kg⁻¹
Base Saturation21 %92 %30 %
Total Exchangeable Bases3 cmol kg⁻¹12.2 cmol kg⁻¹2.5 cmol kg⁻¹
Calcium Carbonate0 %0 %0 %
Calcium Sulphate0 %0 %0 %
Exchangeable Sodium1 %1 %2 %
Electrical Conductivity0.1 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.
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