alkuseinä
Alkuseinä is a Finnish term that translates to "original wall" or "primordial wall." In its most common usage, it refers to the initial layer of soil that forms after a disturbance, such as a landslide, volcanic eruption, or glacial retreat. This layer is crucial in the ecological succession process, providing a substrate for pioneer species to colonize and begin the process of soil development.
The composition of an alkuseinä can vary significantly depending on the nature of the disturbance. Following
The establishment of an alkuseinä is a critical step in the recolonization of barren landscapes. It offers