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Ancient Trees in the Landscape. Norfolk's Arboreal Heritage. By Gerry Barnes and Tom Williamson

This book is based on many years of work by the authors in their local landscapes, who organized a systematic survey for old trees across Norfolk — with over five thousand having been identified by them and their helpers. The authors stress this is not a complete inventory but it is a sufficiently large sample that they can explore the patterns of where and how these distinctive elements of our landscape have survived. In the process they question some assumptions that have crept into discussions about old trees in recent years; they do not presume that their conclusions for Norfolk necessarily apply elsewhere, but in many cases I suspect they do.