{
  "demo": true,
  "id": "gt-0318",
  "code": "GT-0318",
  "order": "vertisol",
  "title": {
    "es": "Vertisol de la Costa Sur",
    "en": "South Coast Vertisol"
  },
  "hook": {
    "es": "El suelo que respira, se hincha y se agrieta.",
    "en": "The soil that breathes, swells and cracks."
  },
  "classification": {
    "usda": "Typic Haplustert",
    "wrb": "Pellic Vertisol"
  },
  "site": {
    "location": "La Gomera, Escuintla",
    "region": "pacific-coast",
    "elevation_m": 60,
    "precipitation_mm": 1500,
    "temperature_c": "25–30",
    "slope": "0–1°",
    "landUse": {
      "es": "Caña de azúcar",
      "en": "Sugarcane"
    },
    "parentMaterial": {
      "es": "Sedimentos finos de planicie costera",
      "en": "Fine coastal plain sediments"
    },
    "described": "2024-04"
  },
  "horizons": [
    {
      "name": "Ap",
      "top": 0,
      "bottom": 25,
      "munsell": "10YR 2/1",
      "color": "#231A12",
      "texture": {
        "es": "Arcilloso",
        "en": "Clay"
      },
      "ph": 6.8,
      "om": 3.2,
      "cec": 52,
      "note": {
        "es": "Arcilla negra. En la época seca se abre en grietas de hasta 5 cm.",
        "en": "Black clay. In the dry season it opens into cracks up to 5 cm wide."
      }
    },
    {
      "name": "Bss1",
      "top": 25,
      "bottom": 75,
      "munsell": "10YR 3/1",
      "color": "#3B2E24",
      "texture": {
        "es": "Arcilloso",
        "en": "Clay"
      },
      "ph": 7.2,
      "om": 1.9,
      "cec": 55,
      "note": {
        "es": "Caras de deslizamiento brillantes, huella del movimiento de la arcilla.",
        "en": "Shiny slickensides, the mark of moving clay."
      }
    },
    {
      "name": "Bss2",
      "top": 75,
      "bottom": 120,
      "munsell": "10YR 4/2",
      "color": "#5E4C3C",
      "texture": {
        "es": "Arcilloso",
        "en": "Clay"
      },
      "ph": 7.6,
      "om": 1.1,
      "cec": 50,
      "note": {
        "es": "Bloques en forma de cuña, muy duros cuando están secos.",
        "en": "Wedge-shaped blocks, very hard when dry."
      }
    },
    {
      "name": "C",
      "top": 120,
      "bottom": 150,
      "munsell": "2.5Y 5/3",
      "color": "#8C7B66",
      "texture": {
        "es": "Arcillo limoso",
        "en": "Silty clay"
      },
      "ph": 7.9,
      "om": 0.5,
      "cec": 41,
      "note": {
        "es": "Sedimento fino con nódulos de carbonato.",
        "en": "Fine sediment with carbonate nodules."
      }
    }
  ],
  "narratives": {
    "kids": {
      "es": "Cuando llueve, este suelo se infla como una esponja. Cuando hace calor, se agrieta como un rompecabezas. ¡Es un suelo que se mueve solo!",
      "en": "When it rains, this soil puffs up like a sponge. When it is hot, it cracks like a jigsaw puzzle. It is a soil that moves by itself!"
    },
    "students": {
      "es": "Los Vertisoles tienen más de 30 % de arcillas expansivas. Al mojarse se hinchan y al secarse se contraen, formando grietas profundas por donde cae material de la superficie. Así el suelo se mezcla a sí mismo. Son fértiles pero difíciles de trabajar.",
      "en": "Vertisols have more than 30% swelling clay. They swell when wet and shrink when dry, forming deep cracks through which surface material falls. This is how the soil mixes itself. They are fertile but hard to work."
    },
    "teachers": {
      "es": "Idea central: el tipo de arcilla determina el comportamiento físico del suelo. Actividad: moldear discos con arcilla húmeda, dejarlos secar y medir cuánto se encogen. Conecta con estados de la materia y propiedades de los materiales.",
      "en": "Core idea: clay type determines the physical behaviour of a soil. Activity: mould discs of wet clay, let them dry and measure how much they shrink. Links to states of matter and material properties."
    },
    "professionals": {
      "es": "Haplustert típico con más de 55 % de arcilla esmectítica, slickensides entre 25 y 120 cm y grietas estacionales que alcanzan 60 cm. CIC superior a 50 cmol(+)/kg. Ventana de laboreo estrecha; drenaje interno lento y riesgo de anegamiento en la época lluviosa.",
      "en": "Typic Haplustert with more than 55% smectitic clay, slickensides between 25 and 120 cm and seasonal cracks reaching 60 cm. CEC above 50 cmol(+)/kg. Narrow tillage window; slow internal drainage and waterlogging risk in the rainy season."
    }
  }
}