They say that in our world, change is the only constant, and change is recognised as something that leads to uncertainty, and can lead to stress.

In recent years the rate that the process and function of our life changes has risen dramatically, as has the level of stress we feel in our lives.

I always find that entering into mature broadleaf woodland and spending a few moments walking among the trees most relaxing. I feel this may have something to do with the sense of tranquillity and timeless permanence these woodlands project.

These days, broadleaf woodlands are greatly valued for their aesthetic and natural value.

The timber value of these woods has, in some circumstances, been totally superceded by these other assets, but in past times, woods were seen as much more of a commercial asset.

Many large woodlands which survive today, were once part of great royal hunting parks. Oak, beech and sweet chestnut trees were often favoured or even planted, as these produce plenty of nuts which helped feed the stock that the woods supported for the king's hunting.

Smaller areas were cultivated or planted to produce a woodland crop that fuelled local industries.

Oak trees were particularly prized for the great strength of their timber. This was put to use in the construction of timber buildings and in the defence of the realm for the construction of oak warships.

Oak warships were still state of the art up until 150 years ago when iron and steel took over. Ash was another tree whose timber was used to defend England's shores.

In primitive times, its wood, which is stronger per kilogram than oak and much more supple was used to make bows, spears and other wooden handled weapons. These days ash is still used to make axe and pick handles.

During the First World War ash was also used in the manufacture of military aircraft.

Of all trees, it was probably alder that had the greatest military application and, as such, great areas of land were given over to coppiced alder woodland. While lacking the strength of both ash and oak it was alder charcoal that was used to produce gunpowder.

Trees are still grown as crops today but these tend to be conifers due to their more rapid and uniform growth.