The production of charcoal may come back into fashion under a 21st century of name of Biochar. There are suggestions that biochar, which is produced by pyrolysis (a process of controlled burning in a low-oxygen atmosphere) can be used to enhance soils and also lock up carbon.
See the article published in The Economist for more information.
This may not have a direct application for the uplands but it supports the view that increased carbon storage in peat is a possibility and it might also provide a boost for the carbon trading concept.