As far as we are aware the peat-bog issue is not a major factor at Davidstow. But it is an issue on other windfarm sites, so we include some interesting references and links

If you don't know Bodmin moor and its history, have a look at 400 Million Years In The Making

But as sea level fell it paused at times, so the sea had time to erode broad flat benches in the landscape – ancient sea beds! Davidstow airfield is probably on one at around 300m above present day sea level. You can stand on Roughtor today – at 400m – and imagine the scenery changing as the sea level fell

When peat is disturbed, such as by construction of the accesses road and foundations for building a windfarm it degrades releasing the CO₂ stored in it. This release of CO₂ always should be taken into account in any calculations of CO₂ savings in the construction of a windfarm. The soil around the site of the proposed windfarm contains varying thickness of peat, and one area is a bog. Disturbing this area will release CO₂

The hidden cost of wind turbines
A New Scientist Article tries to weigh up some of the issues with building on peat bog

Not only do peat bogs store three times as much carbon as held in tropical rainforests, but a similar windfarm development in Ireland ended in disaster
Windfarm developments on blanket bog
A cautionary tale from Derrybrien, Co Galway, and pointers for safeguards needed when similar developments are proposed for the United Kingdom

BBC article about National Trust concerns
The National Trust also urge the Government to conserve peat bogs as a way of curbing climate change

Peat, Carbon Dioxide Payback and windfarms
Written by John Phillips, MA, CBiol, MIBiol published in September 2005 windfarm construction on a peat-rich site has an immediate adverse effect on atmospheric carbon dioxide according to a report written for the Renewable Energy Foundation By Dr M J Hall CChem FRSC, CBiol FIBiol