Agroforestry Systems

, Volume 56, Issue 1, pp 47–55 | Cite as

Tree and livestock productivity in relation to tree planting configuration in a silvopastoral system in North Wales, UK

Article

Abstract

Silvopastoral systems in Europe offer the potential of introducing environmental benefits while at the same time increasing the diversity of farm outputs. The establishment of new silvopastoral systems by planting young trees into existing pasture was investigated at a site in North Wales, UK. Two tree species, sycamore (Acer pseudo-platanus L.) and red alder(Alnus rubra Bong.), were planted into pasture at a range of densities and planting arrangements. Growth of trees planted in farm woodland blocks (2500 stems ha−1) was compared with the growth of trees planted at 400 stems ha−1 in clumps and dispersed throughout the plot and at 100 stems ha−1 (dispersed). Over the first six years after planting, alder trees were significantly taller and larger in diameter than sycamore. Sycamore trees planted at close spacing in farm woodland or clumped arrangements were significantly larger in diameter than widely spaced sycamore at 100 and 400 stems ha−1. Livestock productivity was unaffected by the presence of trees during the six-year establishment phase of the system. The planting of trees in a clumped pattern appears to combine silvicultural benefits to tree growth with agricultural benefits of maintaining livestock production while trees are established.

Lamb growth rate Livestock carrying capacity Red alder Sycamore Tree diameter Tree height 

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References

  1. Anderson L.S. and Sinclair F.L. 1993. Ecological interactions in agroforestry systems. Agrofor Abstr 6: 57-91.Google Scholar
  2. Balandier P. and Dupraz C. 1999. Growth of widely spaced trees.A case study from young agroforestry plantations in France. Agrofor Syst 43: 151-167.Google Scholar
  3. Balls P.W., Macdonald A., Pugh K. and Edwards A.C. 1995. Longterm nutrient enrichment of an estuarine system: Ythan, Scotland (1958-1993). Environ Pollut 90: 311-321.Google Scholar
  4. Beaton A. and Hislop M. 2000. Trees in agroforestry systems. In: Hislop M. and Claridge J. (eds), Agroforestry in the UK. Forestry Commission Bulletin 122. Forestry Commission, Edinburgh, pp. 31-43.Google Scholar
  5. Bezkorowajnyj P.G., Gordon A.M. and McBride A.A. 1993. The effect of cattle foot traffic on soil compaction in a silvopastoral system. Agrofor Syst 21: 1-10.Google Scholar
  6. Burgess P.J. 1999. Effects of agroforestry on farm biodiversity in the UK. Scottish For 53: 24-27.Google Scholar
  7. Campbell C.D., Atkinson D., Jarvis P.G. and Newbould P. 1994. Effects of nitrogen fertiliser on tree/pasture competition during the establishment phase of a silvopastoral system. Ann Appl Biol 124: 83-96.Google Scholar
  8. Coates D. 1999. Sustainable rural development and the role of new farm woodlands in England. In: Burgess P.J., Brierley E.D.R., Morris J. and Evans J. (eds), Farm Woodlands for the Future. Bios Scientific Publishers, Oxford, pp. 1-10.Google Scholar
  9. Dupraz C. 1997. Abris-serres: ce qu'en pensent les arbres. Rev For Fr 49: 417-432.Google Scholar
  10. Dupraz C. 1999. Adequate design of control treatments in longterm agroforestry experiments with multiple objectives. Agrofor Syst 43: 35-48.Google Scholar
  11. Dupraz C. and Newman S.M. 1997. Temperate agroforestry: the European way. In: Gordon A.M. and Newman S.M. (eds), Temperate Agroforestry Systems. CAB International, Wallingford, UK, pp. 181-236.Google Scholar
  12. Genstat 1996. Genstat 5 for Windows release 3.2. Lawes Agricultural Trust, IACR, Rothamsted.Google Scholar
  13. Green S.R., Grace J. and Hutchings N.J. 1995. Observations of turbulent air-flow in 3 stands of widely spaced sitka spruce. Agric For Meteorol 74: 205-225.Google Scholar
  14. Griffiths W. 1999. Holistic approach. Scottish Forestry 53: 4.Google Scholar
  15. Hibberd B.G. (ed.) 1988. Farm Woodland Practice. Forestry Commission Handbook 3. HMSO, London.Google Scholar
  16. Kirby K.J., Buckley G.P. and Good J.E.G. 1999. Maximising the value of new farm woodland biodiversity at a landscape scale. In: Burgess P.J., Brierley E.D.R., Morris J. and Evans J. (eds), Farm Woodlands for the Future. Bios Scientific Publishers, Oxford, pp. 45-55.Google Scholar
  17. McArthur A.J. 1991. Forestry and shelter for livestock. For Ecol Manage 45: 93-107.Google Scholar
  18. McIver H.W. 1991. Red alder: a broad-leaved species for central Scotland. Scottish For 45: 95-105.Google Scholar
  19. Rackham O. 1980. Ancient Woodland: Its History, Vegetation and Uses in England. Edward Arnold, London, 402 pp.Google Scholar
  20. Sheldrick R. and Auclair D. 2000. Origins of agroforestry and recent history in the UK. In: Hislop M. and Claridge J. (eds), Agroforestry in the UK. Forestry Commission Bulletin 122. Forestry Commission, Edinburgh, pp. 7-16.Google Scholar
  21. Sibbald A.R. 1999. Agroforestry principles: sustainable productivity? Scottish For 53: 18-23.Google Scholar
  22. Sibbald A.R., Eason W.R., McAdam J.H. and Hislop A.M. 2001. The establishment phase of a silvopastoral national network experiment in the UK. Agrofor Syst 53: 39-53.Google Scholar
  23. Sibbald A.R., Griffiths J.H. and Elston D.A. 1991. The effects of the presence of widely spaced conifers on under-storey herbage production in the UK. For Ecol Manage 45: 71-77.Google Scholar
  24. Sibbald A.R. and Sinclair F.L. 1990. A review of agroforestry research in progress in the UK. Agrofor Abst 3: 149-164.Google Scholar
  25. Sinclair F., Eason B. and Hooker J. 2000. Understanding and management of interactions. In: Hislop M. and Claridge J. (eds), Agroforestry in the UK. Forestry Commission Bulletin 122. Forestry Commission, Edinburgh, pp. 17-28.Google Scholar
  26. Sinclair F.L. 1999. The agroforestry concept-managing complexity. Scottish For 53: 12-17.Google Scholar
  27. Teklehaimanot Z. and Martin R. 1998. Diurnal and seasonal patterns of nitrogenase activity of red alder in comparison with white clover in silvopastoral agroforestry systems. Biol Fert Soils 28: 267-270.Google Scholar
  28. Teklehaimanot Z. and Sinclair F.L. 1993. Establishment of the silvopastoral network experiment site, Henfaes, Bangor. Agrofor Forum 4(2): 18-21.Google Scholar
  29. Tuley G. 1982. Tree shelters increase the early growth of broadleaved trees. In: Malcolm D.C., Evans J. and Edwards P.N. (eds), Broadleaves in Britain: Future Management and Research. Institute of Chartered Foresters, Edinburgh, pp. 176-182.Google Scholar
  30. Wright D. 1998. National inventory of woodland and trees. Forestry Commission Information Note 8. Forestry Commission, Edinburgh.Google Scholar

Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  1. 1.School of Agricultural and Forest SciencesUniversity of Wales BangorBangor, GwyneddUK

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