{
  "demo": true,
  "id": "gt-0421",
  "code": "GT-0421",
  "order": "ultisol",
  "title": {
    "es": "Ultisol de la Boca Costa",
    "en": "Boca Costa Ultisol"
  },
  "hook": {
    "es": "Rojo intenso, lavado por siglos de lluvia.",
    "en": "Deep red, washed by centuries of rain."
  },
  "classification": {
    "usda": "Typic Hapludult",
    "wrb": "Haplic Acrisol (Clayic)"
  },
  "site": {
    "location": "San Francisco Zapotitlán, Suchitepéquez",
    "region": "boca-costa",
    "elevation_m": 640,
    "precipitation_mm": 3800,
    "temperature_c": "22–27",
    "slope": "8–15°",
    "landUse": {
      "es": "Hule y cacao",
      "en": "Rubber and cacao"
    },
    "parentMaterial": {
      "es": "Lahares antiguos muy alterados",
      "en": "Old, deeply weathered lahars"
    },
    "described": "2024-06"
  },
  "horizons": [
    {
      "name": "A",
      "top": 0,
      "bottom": 15,
      "munsell": "5YR 3/3",
      "color": "#4A2716",
      "texture": {
        "es": "Franco arcilloso",
        "en": "Clay loam"
      },
      "ph": 4.9,
      "om": 3.6,
      "cec": 14,
      "note": {
        "es": "Capa delgada que depende de la hojarasca para mantenerse fértil.",
        "en": "A thin layer that depends on leaf litter to stay fertile."
      }
    },
    {
      "name": "Bt1",
      "top": 15,
      "bottom": 55,
      "munsell": "2.5YR 4/6",
      "color": "#7E3A1C",
      "texture": {
        "es": "Arcilloso",
        "en": "Clay"
      },
      "ph": 4.7,
      "om": 1.4,
      "cec": 11,
      "note": {
        "es": "La arcilla lavada desde arriba se acumula aquí y recubre los agregados.",
        "en": "Clay washed down from above accumulates here and coats the aggregates."
      }
    },
    {
      "name": "Bt2",
      "top": 55,
      "bottom": 105,
      "munsell": "10R 4/8",
      "color": "#98301F",
      "texture": {
        "es": "Arcilloso",
        "en": "Clay"
      },
      "ph": 4.6,
      "om": 0.7,
      "cec": 9,
      "note": {
        "es": "Rojo vivo por los óxidos de hierro, como metal oxidado.",
        "en": "Bright red from iron oxides, like rusted metal."
      }
    },
    {
      "name": "BC",
      "top": 105,
      "bottom": 135,
      "munsell": "2.5YR 5/6",
      "color": "#C4603F",
      "texture": {
        "es": "Franco arcilloso",
        "en": "Clay loam"
      },
      "ph": 4.8,
      "om": 0.3,
      "cec": 8,
      "note": {
        "es": "Menos arcilla y manchas amarillentas.",
        "en": "Less clay and yellowish mottles."
      }
    },
    {
      "name": "C",
      "top": 135,
      "bottom": 160,
      "munsell": "5YR 6/6",
      "color": "#D08F70",
      "texture": {
        "es": "Franco",
        "en": "Loam"
      },
      "ph": 5,
      "om": 0.2,
      "cec": 6,
      "note": {
        "es": "Roca totalmente descompuesta que conserva su forma original.",
        "en": "Fully decomposed rock that keeps its original shape."
      }
    }
  ],
  "narratives": {
    "kids": {
      "es": "Este suelo es rojo porque tiene hierro, igual que un clavo oxidado. Ha llovido tanto sobre él que la lluvia se llevó muchos de sus alimentos. Los árboles lo cuidan con sus hojas.",
      "en": "This soil is red because it has iron, just like a rusty nail. So much rain has fallen on it that the rain carried away many of its nutrients. Trees look after it with their leaves."
    },
    "students": {
      "es": "Los Ultisoles son suelos antiguos de zonas muy lluviosas. El agua ha lavado los nutrientes y ha movido la arcilla hacia abajo, formando un horizonte Bt. Son ácidos y poco fértiles, por eso funcionan mejor con cultivos perennes, sombra y aportes de materia orgánica.",
      "en": "Ultisols are old soils of very rainy areas. Water has leached the nutrients and moved clay downward, forming a Bt horizon. They are acidic and low in fertility, so they work best with perennial crops, shade and added organic matter."
    },
    "teachers": {
      "es": "Idea central: el clima y el tiempo pueden empobrecer un suelo. Actividad: medir el pH con indicador casero de repollo morado y compararlo con otro suelo. Conecta con ácidos y bases, y con sistemas agroforestales.",
      "en": "Core idea: climate and time can impoverish a soil. Activity: measure pH with a homemade red-cabbage indicator and compare it with another soil. Links to acids and bases, and to agroforestry systems."
    },
    "professionals": {
      "es": "Hapludult típico con horizonte argílico de 90 cm, saturación de bases menor al 35 % y reacción muy fuertemente ácida. CIC efectiva baja y probable toxicidad por aluminio intercambiable por debajo de 15 cm. Requiere encalado y manejo de cobertura.",
      "en": "Typic Hapludult with a 90 cm argillic horizon, base saturation below 35% and very strongly acid reaction. Low effective CEC and likely exchangeable aluminium toxicity below 15 cm. Requires liming and cover management."
    }
  }
}