3.1.3 Physical Landscapes in the UK — Topic Overview

This topic examines how erosion, weathering and deposition have shaped distinctive landscapes in the UK. You study one coastal and one river landscape in detail.

UK relief and geology

The UK has a varied physical landscape: highland (north and west — older, harder rocks: Cairngorms, Lake District, Pennines) and lowland (south and east — younger, softer rocks: Thames Valley, Fens). Rock type (hard/soft) and rock structure (joints, bedding planes) influence how landscapes are eroded.

Coastal landscapes

Erosion processes: hydraulic action (pressure of waves forcing air into cracks), abrasion (sediment acting as sandpaper), attrition (particles wearing each other down), solution (dissolving of calcium carbonate rocks).

Erosion landforms: wave-cut platform, cliff, headland and bay, cave, arch, stack, stump.

Transportation: longshore drift — sediment transported along the coast in a zigzag pattern by waves hitting the beach at an angle.

Deposition landforms: beach, spit (hook at end if wind changes direction), bar, tombolo, sand dune.

Coastal management: hard engineering (sea walls, groynes, gabions, rip-rap) vs soft engineering (beach nourishment, dune stabilisation, managed retreat). Managed retreat is increasingly favoured as sea levels rise.

River landscapes

Processes: erosion (hydraulic action, abrasion, attrition, solution), transportation (traction, saltation, suspension, solution), deposition.

Upper course (high energy upstream): V-shaped valley, interlocking spurs, waterfalls, gorges.

Middle course: meanders begin to develop; river begins to widen.

Lower course (low energy downstream, low gradient): broad floodplain, meanders, ox-bow lakes, levées, deltas.

Flood management: hard (dams, embankments, channelisation) vs soft (afforestation, flood plain zoning, SUDS). Managed catchment approaches increasingly adopted.

Exam focus

• Draw and annotate landform diagrams (spits, meanders, waterfalls)
• Evaluate management strategies: costs, benefits, sustainability
• Apply processes to explain specific landforms