Gronlaag

Gronlaag is a term that appears to be a nonstandard spelling of grondlaag, a Dutch word meaning ground layer or soil layer. The standard form is grondlaag. The variant gronlaag is uncommon in formal writing and may occur in dialectal use or as a typographical error.

In soil science, een grondlaag refers to a layer within the soil profile—the part of the ground where properties such as texture, moisture, organic matter, and biology are concentrated. This often corresponds to the upper portion of the soil, sometimes called the topsoil, though exact terminology can vary by discipline and context.

In geology and archaeology, grondlaag can denote a layer of sediment or deposit within the ground that records chronological information. Such layers are used in stratigraphic analysis to interpret historical and environmental sequences.

In construction and land management, de grondlaag can refer to the base earth layer used as a foundation for surfaces or structures, or to the prepared ground on which paving, landscaping, or other work is built. The term is thus applied across natural and built environments to describe foundational or underlying layers.

See also: grond, laag, bodem, toplaag, ondergrond.