Secans del Segrià i Utxesa

Location:Spain
Area:9,372 acres (3,793 hectares)
Species:All  Endangered  Invasive
Climate:View Climate Data
Land Use:View Land Use Data
Köppen climate classification:BSk (Climate: arid; Precipitation: steppe; Temperature: cold arid)
Natura 2000 Data Sheet:View Data Sheet  Explanatory notes

Ecoregions

Iberian sclerophyllous and semi-deciduous forests

Soils

Protected Area Boundary
 AB
   
Share70 %20 %10 %75 %20 %5 %
Soil TypeCalcaric FluvisolsCalcaric CambisolsCalcaric FluvisolsCalcaric CambisolsCalcaric RegosolsHaplic Solonchaks
Topsoil TextureMediumMediumMediumFineFineFine
Reference Depth100 cm100 cm100 cm100 cm100 cm100 cm
DrainagePoorModerately wellPoorModerately wellModerately wellModerately well
Available Water Capacity75 m150 m150 m50 m15 m50 m
Phase 1Gravelly  GravellyGravellyGravelly
Phase 2   Petrocalcic  
Root ObstacleNone to 80 cmNone to 80 cmNone to 80 cmNone to 80 cm20 - 40 cmNone to 80 cm
Impermeable LayerNone to 150 cmNone to 150 cm40 - 80 cmNone to 150 cm40 - 80 cmNone to 150 cm
Soil Water RegimeNot wet within 80 cm for over 3 months, nor wet within 40 cm for over 1 monthNot wet within 80 cm for over 3 months, nor wet within 40 cm for over 1 monthWet within 80 cm over 6 months, but not wet within 40 cm for over 11 monthNot wet within 80 cm for over 3 months, nor wet within 40 cm for over 1 monthNot wet within 80 cm for over 3 months, nor wet within 40 cm for over 1 monthNot wet within 80 cm for over 3 months, nor wet within 40 cm for over 1 month
Topsoil Properties
Gravel15 %6 %15 %5 %48 %4 %
Sand34 %36 %34 %19 %22 %19 %
Silt48 %43 %48 %32 %36 %29 %
Clay18 %21 %18 %49 %42 %52 %
USDA TextureLoamLoamLoamClayClayClay
Reference Bulk Density1.41 g/cm³1.39 g/cm³1.41 g/cm³1.24 g/cm³1.27 g/cm³1.23 g/cm³
Bulk Density1.39 g/cm³1.41 g/cm³1.39 g/cm³1.28 g/cm³1.28 g/cm³1.23 g/cm³
Organic Carbon0.6 %0.65 %0.6 %0.87 %1.83 %0.54 %
PH8887.87.68.9
Clay Cation Exchange Capacity68 cmol kg⁻¹52 cmol kg⁻¹68 cmol kg⁻¹57 cmol kg⁻¹32 cmol kg⁻¹48 cmol kg⁻¹
Soil Cation Exchange Capacity14 cmol kg⁻¹16 cmol kg⁻¹14 cmol kg⁻¹30 cmol kg⁻¹23 cmol kg⁻¹31 cmol kg⁻¹
Base Saturation100 %100 %100 %100 %62 %100 %
Total Exchangeable Bases19.8 cmol kg⁻¹24.3 cmol kg⁻¹19.8 cmol kg⁻¹46.6 cmol kg⁻¹12.9 cmol kg⁻¹46.5 cmol kg⁻¹
Calcium Carbonate11.7 %7 %11.7 %4.9 %3 %3 %
Calcium Sulphate0.2 %0 %0.2 %0.1 %0 %0.4 %
Exchangeable Sodium3 %1 %3 %1 %1 %43 %
Electrical Conductivity0.7 dS m-10.4 dS m-10.7 dS m-10.2 dS m-10.1 dS m-15.9 dS m-1
Subsoil Properties
Gravel10 %10 %10 %5 %33 %6 %
Sand36 %34 %36 %23 %21 %33 %
Silt46 %43 %46 %35 %36 %28 %
Clay18 %23 %18 %42 %43 %39 %
USDA TextureLoamLoamLoamClayClayClay
Reference Bulk Density1.41 g/cm³1.38 g/cm³1.41 g/cm³1.26 g/cm³1.25 g/cm³1.29 g/cm³
Bulk Density1.41 g/cm³1.45 g/cm³1.41 g/cm³1.35 g/cm³1.35 g/cm³1.31 g/cm³
Organic Carbon0.4 %0.43 %0.4 %0.39 %0.5 %0.38 %
PH8.18.18.18.17.89
Clay Cation Exchange Capacity84 cmol kg⁻¹54 cmol kg⁻¹84 cmol kg⁻¹58 cmol kg⁻¹39 cmol kg⁻¹50 cmol kg⁻¹
Soil Cation Exchange Capacity13 cmol kg⁻¹16 cmol kg⁻¹13 cmol kg⁻¹26 cmol kg⁻¹20 cmol kg⁻¹31 cmol kg⁻¹
Base Saturation100 %100 %100 %100 %55 %100 %
Total Exchangeable Bases20.7 cmol kg⁻¹28.7 cmol kg⁻¹20.7 cmol kg⁻¹44.8 cmol kg⁻¹11.6 cmol kg⁻¹55.3 cmol kg⁻¹
Calcium Carbonate12.2 %8.7 %12.2 %11.2 %3 %3 %
Calcium Sulphate0.2 %0.4 %0.2 %0 %0 %0.5 %
Exchangeable Sodium3 %1 %3 %2 %3 %42 %
Electrical Conductivity0.5 dS m-10.3 dS m-10.5 dS m-10.2 dS m-10.1 dS m-114.8 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.
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