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Moorland

Type of habitat

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  • 5 chapters
The desert of Wales as seen from the summit of Drygarn Fawr
Velela · CC BY-SA 3.0

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Moorland habitats are found mainly in tropical Africa, northern and western Europe, and South America. Most of the world's moorlands are diverse ecosystems. In the extensive moorlands of the tropics, biodiversity can be extremely high. Moorland is also related to tundra (where the subsoil is permafrost or permanently frozen soil), appearing as the tundra and the natural tree zone. The boundary between tundra and moorland constantly shifts with climatic change.

Heather moorland

Heathland and moorland are the most extensive areas of semi-natural vegetation in the British Isles. The moorlands of eastern Britain are similar to heaths, but are distinguished by having a covering of peat. On western moors, the peat layer can be several metres thick. Scottish "muirs" are generally heather moors, but also have extensive cover of grass, cotton-grass, mosses, bracken and undergrowth such as crowberry, with the wetter moorland having sphagnum moss merging into bog-land.

The extent to which human activity was responsible for the creation of moors is a subject with a considerable degree of uncertainty. Oliver Rackham writes that pollen analysis shows that some moorland, such as those on the islands and in the far north of Scotland, are clearly natural, never having had trees, whereas much of the Pennine moorland area was forested in Mesolithic times. How much the deforestation was caused by climatic change and how much by human activity is uncertain.

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