Ancient Trees: part of our heritage

Kent and East Sussex – the region of South East England known as The Weald - are still amongst the most wooded counties in England. Although the wildwood which once covered the counties vanished centuries ago it left in its place woods of hornbeam and oak, areas of wood-pasture and small coppice woodlands (See my blog archive,Coppicing, 5 August, 2007).

Traditionally livestock would have grazed within this woodland – an historic land practice since medieval times – which eventually resulted in much of it wood-pasture. The legacy of this practice is the historic park of the type that can still be seen at Knole, a favourite hunting park of Henry VIII and later home of the Sackville-West's.

Venerable – ancient - trees are as much part of our heritage as the old manor houses and stately homes we treasure. An oak or yew tree starts to become of interest when it is perhaps 500 years old: they could live to well over 1000. But a beech or hornbeam has a shorter life-span: a 200 year old tree is beginning to be interesting and may well live for another 200 years or more, although there are some over 700 years old!

Measuring the girth of trees is often used as a method of calculating their age: generally if it is large for the species it is most probably of considerable age. If in addition the trunk shows signs of hollowing, decay holes, bark loss or bark deeply creviced then the tree is quite likely to be a veteran.

Counting the annual growth rings – the most reliable method of calculating the age of a tree - is obviously only possible once it's felled. But even then the tree may be so hollow with age that it's difficult to do. Another method of deducing the age of a tree is by counting the number of interdependent wildlife species it supports: birds, mammals, a multitude of insects, fruiting bodies and fungi.

Where I live, hornbeams were used to mark parish boundaries hundreds of years ago. These lines of ancient hornbeams are a distinctive landscape feature which gives the parish a special character, a regional identity and sense of place.

And these hornbeam are not only a feature of our parish boundary but also indicate the work and life-style of our ancestors. Since the 9th century 'dens' were used for grazing swine. The pigs were driven along the drove roads to fatten up on the acorns and beech mast in the woods at the dens: such woods that pre-date 1600 are now termed ancient woodland.

Pollarding oak and hornbeam was a traditional form of woodland management since that time, when the trees were regularly lopped (pollarded) in late winter or early spring to above the height of grazing cattle. The leaves and twigs were used as fodder for sheep and cows and the branches saved for firewood. And in the open landscape large single trees were often pollarded too, on a regular cycle, to create an annual supply of fire wood.

We often have an emotional or aesthetic response to ancient trees: romantic, awesome, beautiful. But there's a growing awareness of their historical, cultural and ecological importance too. If we value all this we must care for our ancient trees; nurture and love them. Only in this way will they remain an integral and important part of our heritage. So go on, hug an old tree!

Lucy
www.lucyannwrites.blogspot.com