Coppicing

Method of woodland management

"Coppice" redirects here. For the locality in Oldham, see Coppice, Greater Manchester.

"Copse" redirects here. Not to be confused with Corpse or Cops.

Shortly after coppicing.

One year's regrowth.

Coppiced alder in Hampshire, UK.

Coppicing /ˈkɒpɪsɪŋ/ is the traditional method in woodland management of cutting down a tree to a stump, which in many species encourages new shoots to grow from the stump or roots, thus ultimately regrowing the tree. A forest or grove that has been subject to coppicing is called a copse /kɒps/ or coppice, in which young tree stems are repeatedly cut down to near ground level. The resulting living stumps are called stools. New growth emerges, and after a number of years, the coppiced trees are harvested, and the cycle begins anew. Pollarding is a similar process carried out at a higher level on the tree in order to prevent grazing animals from eating new shoots.[1] Daisugi (台杉, where sugi refers to Japanese cedar), is a similar Japanese technique.[2][3]

Many silviculture practices involve cutting and regrowth; coppicing has been of significance in many parts of lowland temperate Europe.[citation needed] The widespread and long-term practice of coppicing as a landscape-scale industry is something that remains of special importance in southern England.[4] Many of the English language terms referenced in this article are particularly relevant to historic and contemporary practice in that area.

Typically a coppiced woodland is harvested in sections or coups[5] on a rotation. In this way, a crop is available each year somewhere in the woodland. Coppicing has the effect of providing a rich variety of habitats, as the woodland always has a range of different-aged coppice growing in it, which is beneficial for biodiversity. The cycle length depends upon the species cut, the local custom, and the use of the product. Birch can be coppiced for faggots on a three- or four-year cycle, whereas oak can be coppiced over a fifty-year cycle for poles or firewood.

Trees being coppiced do not die of old age as coppicing maintains the tree at a juvenile stage, allowing them to reach immense ages.[1] The age of a stool may be estimated from its diameter; some are so large—as much as 5.5 metres (18 ft) across—that they are thought to have been continually coppiced for centuries.[6]

## History[edit]

Evidence suggests that coppicing has been continuously practised since pre-history.[7] Coppiced stems are characteristically curved at the base. This curve occurs as the competing stems grow out from the stool in the early stages of the cycle, then up toward the sky as the canopy closes.[citation needed] The curve may allow the identification of coppice timber in archaeological sites. Timber in the Sweet Track in Somerset (built in the winter of 3807 and 3806 BCE) has been identified as coppiced Tilia species.[7]

Originally, the silvicultural system now called coppicing was practiced solely for small wood production.[citation needed] In German this is called Niederwald, which translates as low forest. Later on in Mediaeval times, farmers encouraged pigs to feed from acorns, and so some trees were allowed to grow bigger.[citation needed] This different silvicultural system is called in English coppice with standards. In German this is called Mittelwald (middle forest). As modern forestry (Hochwald in German, which translates as High forest) seeks to harvest timber mechanically, and pigs are generally no longer fed from acorns, both systems have declined. However, there are cultural and wildlife benefits from these two silvicultural systems, so both can be found where timber production or some other main forestry purpose (such as a protection forest against an avalanche) is not the sole management objective of the woodland.[8]

In the 16th and 17th centuries, the technology of charcoal iron production became widely established in England, continuing in some areas until the late 19th century[9] Along with the growing need for oak bark for tanning, this required large amounts of coppice wood. With this coppice management, wood could be provided for those growing industries in principle indefinitely. This was regulated by a statute of 1544[10] of Henry VIII, which required woods to be enclosed after cutting (to prevent browsing by animals) and 12 standels (standards or mature uncut trees) to be left in each acre, to be grown into timber. Coppice with standards (scattered individual stems allowed to grow on through several coppice cycles) has been commonly used throughout most of Europe[when?] as a means of giving greater flexibility in the resulting forest product from any one area. The woodland provides the small material from the coppice as well as a range of larger timber for such uses as house building, bridge repair, cart-making and so on.

In the 18th century coppicing in Britain began a long decline. This was brought about by the erosion of its traditional markets. Firewood was no longer needed for domestic or industrial uses as coal and coke became easily obtained and transported, and wood as a construction material was gradually replaced by newer materials.[citation needed] Coppicing died out first in the north of Britain and steadily contracted toward the south-east until by the 1960s active commercial coppice was heavily concentrated in Kent and Sussex.[11]

## Practice[edit]

The shoots (or suckers) may be used either in their young state for interweaving in wattle fencing (as is the practice with coppiced willows and hazel), or the new shoots may be allowed to grow into large poles, as was often the custom with trees such as oaks or ashes. This creates long, straight poles which do not have the bends and forks of naturally grown trees. Coppicing may be practised to encourage specific growth patterns, as with cinnamon trees which are grown for their bark.

Another, more complicated system is called compound coppice. Here some of the standards would be left, some harvested. Some of the coppice would be allowed to grow into new standards and some regenerated coppice would be there. Thus there would be three age classes.[12] Coppiced hardwoods were used extensively in carriage and shipbuilding, and they are still sometimes grown for making wooden buildings and furniture.

Diagram illustrating the coppicing cycle over a 7- to 20-year period

Withies for wicker-work are grown in coppices of various willow species, principally osier.

In France, sweet chestnut trees are coppiced for use as canes and bâtons for the martial art Canne de combat (also known as Bâton français).

Some Eucalyptus species are coppiced in a number of countries, including Australia, North America, Uganda, and Sudan.[13][14]

The Sal tree is coppiced in India,[15] and the Moringa oleifera tree is coppiced in many countries, including India.

Sometimes former coppice is converted to high-forest woodland by the practice of singling. All but one of the regrowing stems are cut, leaving the remaining one to grow as if it were a maiden (uncut) tree.

The boundaries of coppice coups were sometimes marked by cutting certain trees as pollards or stubs.

### United Kingdom[edit]

Recently felled chestnut coppice near Petworth in West Sussex Old hornbeam coppice stools left uncut for at least 100 years. Coldfall Wood, London

In southern Britain, coppice was traditionally hazel, hornbeam, field maple, ash, sweet chestnut, occasionally sallow, elm, small-leafed lime and rarely oak or beech, grown among pedunculate or sessile oak, ash or beech standards. In wet areas alder and willows were used.[16] A small, and growing, number of people make a living wholly or partly by working coppices in the area today,[17] at places such as at the Weald and Downland Living Museum.[18]

Coppices provided wood for many purposes, especially charcoal before coal was economically significant in metal smelting. A minority of these woods are still operated for coppice today, often by conservation organisations, producing material for hurdle-making, thatching spars, local charcoal-burning or other crafts. The only remaining large-scale commercial coppice crop in England is sweet chestnut which is grown in parts of Sussex and Kent.[11] Much of this was established as plantations in the 19th century for hop-pole production (hop-poles are used to support the hop plant while growing hops) and is nowadays cut on a 12 to 18-year cycle for splitting and binding into cleft chestnut paling fence, or on a 20- to 35-year cycle for cleft post-and-rail fencing, or for sawing into small lengths to be finger-jointed for architectural use. Other material goes to make farm fencing and to be chipped for modern wood-fired heating systems.

In northwest England, coppice-with-standards has been the norm,[when?] the standards often of oak with relatively little simple coppice. After World War II, a great deal was planted up with conifers or became neglected. Coppice-working almost died out, though a few men continued in the woods.

## Wildlife[edit]

Overstood sweet chestnut coppice stool, Banstead Woods, Surrey

Coppice management favours a range of wildlife, often of species adapted to open woodland.[11] After cutting, the increased light allows existing woodland-floor vegetation such as bluebell, anemone and primrose to grow vigorously. Often brambles grow around the stools, encouraging insects, or various small mammals that can use the brambles as protection from larger predators. Woodpiles (if left in the coppice) encourage insects such as beetles to come into an area. The open area is then colonised by many animals such as nightingale, European nightjar and fritillary butterflies. As the coup grows, the canopy closes and it becomes unsuitable for these animals again—but in an actively managed coppice there is always another recently cut coup nearby, and the populations therefore move around, following the coppice management.

However, most British coppices have not been managed in this way for many decades.[11] The coppice stems have grown tall (the coppice is said to be overstood), forming a heavily shaded woodland of many closely spaced stems with little ground vegetation. The open-woodland animals survive in small numbers along woodland rides or not at all, and many of these once-common species have become rare. Overstood coppice is a habitat of relatively low biodiversity—it does not support the open-woodland species, but neither does it support many of the characteristic species of high forest, because it lacks many high-forest features such as substantial dead-wood, clearings and stems of varied ages. Suitable conservation management of these abandoned coppices may be to restart coppice management, or in some cases it may be more appropriate to use singling and selective clearance to establish a high-forest structure.

## Natural occurrence[edit]

Coppice and pollard growth is a response of the tree to damage, and can occur naturally. Trees may be browsed or broken by large herbivorous animals, such as cattle or elephants, felled by beavers or blown over by the wind. Some trees, such as linden, may produce a line of coppice shoots from a fallen trunk, and sometimes these develop into a line of mature trees. For some trees, such as the common beech (Fagus sylvatica), coppicing is more or less easy depending on the altitude: it is much more efficient for trees in the montane zone.[19]

Mature red oak resprout from natural stump, 40+ years after falling. Here, the most successful of the numerous sprouts have survived, becoming the new distributed trunk system.

## For energy wood[edit]

Coppicing of willow, alder and poplar for energy wood has proven commercially successful.[20] The Willow Biomass Project in the United States is an example of this. In this case the coppicing is done in a way that an annual or more likely a tri-annual cut can happen. This seems to maximize the production volume from the stand. Such frequent growth means the soils can be easily depleted and so fertilizers are often required. The stock also becomes exhausted after some years and so will be replaced with new plants. The method of harvesting of energy wood can be mechanized by adaptation of specialized agricultural machinery.[21]

Species and cultivars vary in when they should be cut, regeneration times and other factors. However, full life cycle analysis has shown that poplars have a lower effect in greenhouse gas emissions for energy production than alternatives.[22]

## Gallery[edit]

* Ash coppice stool

* Bluebells among coppice in Bysing Wood, Kent

* Hornbeam coppice, Pond Wood, Essex

* Ash coppice in Overlangbroek, Netherlands

* Coppicing in progress, note standard trees among the coppice stools, Lower Wood, Norfolk

## See also[edit]

* Trees portal

* Ancient woodland
* Apical dominance
* Basal shoot
* Bodging
* Coarse woody debris
* Crown sprouting
* Epicormic shoot
* Even aged timber management
* Fire ecology
* Layering
* Lignotuber
* Mallee (habit)
* Pollarding
* Pruning
* Fruit tree pruning
* Short rotation coppice
* Shredding (tree pruning technique)
* Silvopasture
* Stand level modelling
* Thinning
* Tree topping

## References[edit]

1. ^ a b De Decker, Kris (n.d.). "How to Make Biomass Energy Sustainable Again". Low-Tech Magazine. Retrieved 27 April 2021.
2. ^ "Incredible 15th-Century Japanese Technique for Growing Ultra-Straight Cedar Trees". My Modern Met. 31 July 2020. Retrieved 19 August 2020.
3. ^ Taaffe, Gerard (26 September 2002). "Trees that tower over the past and present". The Japan Times. Retrieved 19 August 2020. "...known as dai-sugi. This is a coppiced sugi ..."
4. ^ Bartlett, Debbie (4 April 2016). "Traditional coppice in South East England: the importance of workforce engagement for development". IForest - Biogeosciences and Forestry. 9 (4): 577–582. doi:10.3832/ifor1809-009. Retrieved 1 January 2024.
5. ^ Coup (French coup, 'cut') is pronounced /ˈkuːp/ in this context.
6. ^ Rackham, Oliver (1980). "The medieval landscape of Essex" (PDF). In D. G. Buckley (ed.). Archaeology in Essex to AD 1500 (Report). CBA Research Reports. The Council for British Archaeology. p. 104. Retrieved 25 July 2022.
7. ^ a b Coles, J M (1978). Limbrey, Susan and J G Evans (ed.). "Man and landscape in the Somerset Levels" (PDF). The Effect of Man on the Landscape: The Lowland Zone. London: 86–89. Archived from the original (PDF) on 27 September 2011. Retrieved 13 September 2007.
8. ^ "A Critique of Silviculture Managing for Complexity" Chapter 1 Historical Context of Silviculture Puettmann, K.J. et al. 2009
9. ^ "Coppicing – A Brief History". Wandering Woodsmen - Woodland & Countryside Conservation. Retrieved 12 June 2018.
10. ^ Forestry in the Weald, Forestry Commission Booklet 22, C. Barrington 1968
11. ^ a b c d Fuller, R J; Warren, M S. "Coppiced woodlands: their management for wildlife" (PDF). JNCC. Archived from the original (PDF) on 9 September 2011. Retrieved 6 November 2017.
12. ^ Silviculture Concepts and Applications, Ralph D. Nyland 2002 p. 563
13. ^ Matthews, John D. (1989). Silvicultural systems. Oxford [England]: Clarendon Press. pp. 71, 202, 205. ISBN 978-0198594918.
14. ^ Hamilton, Liz (June 2000). "Managing coppice in Eucalypt plantations". Trees & Native Vegetation: Farm Forestry. Department of Primary Industries, Victoria, Australia. Retrieved 17 April 2008.
15. ^ "coppice on sal tree (Shorea robusta ) – 2714050". 3 February 2003. Retrieved 29 April 2014.
16. ^ Rackham, Oliver (2003). Ancient Woodland; its history, vegetation and uses in England (New ed.). Castlepoint Press. ISBN 1-897604-27-0.
17. ^ The Bill Hogarth MBE Memorial Apprenticeship Trust Retrieved 17 June 2014
18. ^ "Coppicing at the Museum". Weald and Downland Living Museum. 27 January 2023. Retrieved 31 January 2023.
19. ^ Flore forestière française : guide écologique illustré. 1, Plaines et collines [French forest flora: illustrated ecological guide], Institut pour le développement forestier, 1989, p. 453, ISBN 2-904740-16-3 Cite: [...] rejette mal de souche à l'étage collinéen, mais très facilement à l'étage montagnard ; (Does not coppice well in the foothill zone but very easily in the montane zone).
20. ^ Dimitriou, Ioannis; Aronsson, Pär (2005). "Willows for energy and phytoremediation in Sweden". Food and Agriculture Organization. Retrieved 29 August 2021.
21. ^ Silviculture Concepts and Applications, Ralph D. Nyland 2002 Ch. 24 "Coppice Silviculture"
22. ^ Poplar (Populus spp.) Trees for Biofuel Production by Patricia A. Townsend, et al. extension.org

## Further reading[edit]

* Rackham, Oliver (2001). Trees and woodland in the British landscape: the complete history of Britain's trees, woods & hedgerows. London: Phoenix Press. ISBN 1-84212-469-2.
* Hammersley, G, 'The charcoal iron industry and its fuel 1540–1750' Econ Hist. Rev. Ser. II, 26 (1973), 593–613.

## External links[edit]

* Media related to Coppices at Wikimedia Commons
* The dictionary definition of coppicing at Wiktionary
* What is coppicing? The National Trust

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