Invented by the Aztecs, it is a technique used in Aztec agriculture that is based on artificial islands built of interwoven wood and filled with earth and organic materials.
Corresponds to minerals that are smaller than 2 µm.
Relatively permanent erosion features on slopes, with steep side walls and generally a flat bottom, where water may flow inside during the rainy season.
Horizon formed by organic matter in the process of decomposition, which is why it is dark in color.
Soil of anthropic origin, regional name in the Amazon for soils that have dark surface horizons.
Process that occurs especially through the action of water, such as precipitation, and is common in hot and humid climates.
They are mineral soils, usually deep, and with little differentiation between horizons and color.
Process of origin or formation of soils.
They have an intermediate grain size between sand and clay, which we call silt.
Earthen structures dug into the ground and formed by trenches and walls that represent geometric figures of different shapes.
These are small spaces formed in the soil matrix, generally occupied by water, and are responsible for storing most of the water available to plants.
These are the larger spaces formed in the soil matrix, where the free movement of air and drainage water occurs.
It is a vertical section that starts at the soil surface and ends at the parent rock, and may be made up of one or more horizons.
It is given by the volume of empty spaces between the solid particles of the soil. The pores are never empty, because they are either occupied by water or by air. In a waterlogged soil, practically all the pores are occupied by water, in a moist soil, they will be occupied partly by water and partly by air, and in dry soils, all will be occupied by air.
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