
An area of beech plantation at Hembury before and after thinningNumerous reports over the last few years have highlighted the decline of woodland birds, butterflies, invertebrates and flora. The reasons are many, but common to all these declines is a lack of management of the nations woods resulting in even-aged stands of closed canopy woodland with few clearings for species that thrive in such conditions.
Despite this, many people get upset when a part of a wood is managed; that is, when trees are cut down.
So the question must be asked, "Why manage woodlands? Why not leave them to be natural woodlands?"
Let's allow the experts to answer these two questions:
First off, the renowned woodland historian,
Oliver Rackham:"What is 'natural woodland'? Traditionally, it means 'semi-n
atural' woods, not plantations, but there is now a fashion for restricting the term to woodland never affected
by human activity. This creates an empty category, for human influence is pervasive and long-standing ....".
What he is saying here, is that mans influence over the centuries has shaped the woods that still remain. Although they may be ancient semi-natural woods, their structure and composition is a result of human influence. The wild wood is long gone and cannot be recreated precisely because we did historically manage it. The wildlife unique to woodlands is because of mans intervention, not in spite of it. It arose in direct response to mans activities in woodland and has declined in part due to the cessation of such activities.
As
Robert J Fuller and
Martin S Warren in
Management by Diversity in British Woodlands - Striking a Balance (British Wildlife Volume 7 No 1 1995) put it :
"With the possible exception of a handful of small inaccessible gorges and islands, there is hardly any woodland in Britain today that could be regarded as natural. Our heritage of ancient woodland has been almost entirely modified by centuries of cutting, planting, burning and grazing. Nonetheless, British woodland is extaordinarily varied in its plant and animal life. This richness is partly a product of man's treatment of woodland, which has differed from one region to another, and partly reflects the fact that Britain is so diverse in topography, soils and climate."
Charles Watkins in
Woodland Management and Conservation (1990) takes up the case for managing woodlands.
"Management often brings direct benefits to wildlife and it is these benefits that allow a compromise to be reached between conservation and timber growing. There is some value in having non-intervention areas and a number of species do benefit from neglect, but managed woods usually contain a richer variety of habitats within a limited area and thus more species than
unmanaged woods."
He goes on to add that "Management has not only influenced the survival of the original woodland flora and fauna but has, in some cases, enriched it. Indeed, some ancient woods are probably richer as wildlife habitats than the natural woods from which they descended".
As he goes on to note "any m
anagement, but
especially coppicing, creates open spaces in woods at a faster rate than would happen in natural woods. This means that there are more clearings and consequently more young growth in managed woods and these are both especially rich phases in the sequence of stand growth.".
As
George Peterken in Natural Woodland (1996) puts it "the diversity created by and inherited from traditional management is likely to be lost if reserves are allowed to grow naturally".This, in some effect, is what has happened to woodlands, as
noted by
KJ Kirby and JJ Hopkins in their report
Ecological change in British broadleaved woodland since 1947 (2007). "The shift from
coppice to a high forest regime ..... inevitably reduces the proportion of the stands that are open space and young growth and hence may reduce associated woodland species".
With woodlands still under threat from development, those that remain can be viewed as isolated islands rich in biodiversity, surrounded by urban encroachment or 'improved' farmland. Many grassland species of wildlife with their habitats degraded have adapted to woodland glades and rides and it is these species of open ground and edge habitat, that have suffered the most through the
neglect of our nations woods. To all this
Charles Watkins adds a word of caution.
"This general support for
management rather than neglect should not be taken as support for all kinds of management. Many forestry and agricultural operations are very damaging to ancient woodland. These include the planting of trees and shrubs not native to the area or of foreign provenance; the clearance and killing of old
coppice stools and the removal of all mature trees and deadwood."