Slope & drainage

Drainage can be the result of the interaction of a number of factors:
  • geology;
  • altitude;
  • rainfall and temperature; and
  • slope angle.
Slope is an important factor in allowing water to accumulate or to be shed. There is a distinct contrast between the shallow slopes of the plateau and valley floors and the near-perpendicular slopes of the glens and plateau edges.

In waterlogged areas, the tendency is for dead plant material to accumulate as humus or peat. A range of vegetation then develops from peat bog to marsh and wet heath.

Slope angle and changes in geology, or landform, are also responsible for spring lines, the development of channelled water in streams and the occurrence of waterfalls. All these habitats have their own distinctive plant and animal communities.