Understanding the benefits of peatland restoration work

Why peat bogs belong on your coastal walking map

Walk the coast of northern Britain — the machair edges of the Hebrides, the flat hinterland behind Northumberland's dunes, the peaty moorland that rises sharply from a sea loch — and you are rarely far from peat. It sits underfoot as springy, dark, waterlogged ground, and it shapes everything around it: the colour of the burns running off the hill, the plants you can name, the birds you hear on a still morning.

Peatlands are also among the most damaged habitats in the UK. Understanding what restoration work involves makes a walk far richer, because you begin to read the landscape instead of simply passing through it.

What healthy peatland actually looks like

A functioning bog is wet for most of the year. On a good walk you should spot:

• Sphagnum mosses — the bog builders. Several species, from vivid crimson to pale green, each holding many times its own weight in water.
• Cottongrass — the white tufts that look like scraps of wool caught on the wind in June and July.
• Bog asphodel, cranberry, cloudberry and round-leaved sundew — small specialists that struggle anywhere drier.
• Sponginess underfoot — if the ground feels like a mattress and sighs when you step, that is peat holding water.

Degraded peat looks quite different: dry, cracked, dominated by heather or purple moor-grass, scattered with bare peat hags and cut through by straight drainage channels. Those channels — often called grips — were dug in the mid-twentieth century to "improve" land for grazing and forestry. They worked in the narrowest sense, and drained the life out of the bog.

Why restoration matters for carbon

Peat accumulates at roughly a millimetre a year. A metre of peat can represent a thousand years of growth. That slowness is exactly the point: it means peatland stores an enormous quantity of carbon, and it holds it only while it stays wet.

When peat dries, that locked-away carbon meets oxygen and escapes as carbon dioxide. Eroding gullies wash it into rivers and out to sea. Burning — whether managed muirburn or a summer wildfire on tinder-dry ground — can release centuries of storage in a single afternoon. Raising the water table is therefore one of the most cost-effective climate measures available in the UK, and it happens at landscape scale rather than in a laboratory.

The wildlife that depends on bogs staying wet

Breeding waders are the clearest indicator that a bog is working. Golden plover, dunlin, curlew, greenshank and redshank all nest on open peatland, feeding on the insects that thrive in wet, mossy ground. Add hen harrier, merlin and short-eared owl hunting low over the contours, and the large heath butterfly and black darter dragonfly among the pools and boggy hollows.

Many of these birds nest on the ground, so timing matters. Between April and July, keep dogs close, stick to established paths and give open moorland a wide berth. A single disturbance can end a nesting attempt that took weeks to establish.

How restoration is actually done

Restoration is practical, hands-on work, and you can often see it in progress from a footpath:

• Blocking drains with peat dams, coir rolls or plastic piling, each keyed into the peat so water pools behind it rather than seeping underneath.
• Reprofiling bare peat edges and hags, then spreading heather brash to shelter the surface and hold a humid microclimate while moss re-establishes.
• Reintroducing Sphagnum by spreading fragments, sometimes grown on and planted as plugs or applied in a gel slurry across wet ground.
• Removing trees planted on deep peat, particularly conifers, and leaving brash in place to slow runoff.
• Adjusting grazing and burning regimes so vegetation can recover without being cropped to the bone.

Results appear surprisingly quickly. Water tables rise within a season or two, pools form, Sphagnum returns, and waders move back into areas that had been silent for decades. Site teams monitor progress with dipwells, fixed-point photographs and simple vegetation surveys — unglamorous methods that tell a remarkably clear story.

Reading the signs on your next walk

If you are heading out onto peatland, kit matters. Waterproof boots and gaiters, a paper map as well as a phone, and a spare layer in the pack. Stay off bare peat where you can — it is fragile, and a bootprint can persist for years — and turn back rather than press on across hagged ground in poor visibility.

Then look for the evidence of restoration: lines of new dams holding back dark pools, fences protecting regenerating vegetation, patches of brash across what was once bare ground. Once you can spot these details, a coastal walk becomes something closer to a Nordic-style outing — unhurried, weather-proof, flask of coffee in hand, wool hat pulled down, and a landscape that rewards you for paying attention rather than covering distance.

Healthy bogs are slow, wet and quietly stubborn. Learning to appreciate them is one of the small pleasures of walking Britain's edges.