Analysis Of spacing for spotted gum plantations for maximising merchantable logs’ volume in South East Queensland, Australia

Maraseni, T. N., Cockfield, G. and Apan, A. (2007). Analysis Of spacing for spotted gum plantations for maximising merchantable logs’ volume in South East Queensland, Australia. In: S. R. Harrison, A. Bosch and J. Herbohn, Improving the Triple Bottom Line Returns from Small-scale Forestry, Proceedings from an International Conference. Improving the Triple Bottom Line Returns from Small-scale Forestry, Ormoc, The Philippines, (241-252). 18 - 21 June 2007.

Attached Files (Some files may be inaccessible until you login with your UQ eSpace credentials)
Name Description MIMEType Size Downloads
n27_Tek_FINAL_27.pdf 27 Tek FINAL 27.pdf Click to show the corresponding preview/stream application/pdf 332.39KB 1343
Author Maraseni, T. N.
Cockfield, G.
Apan, A.
Title of paper Analysis Of spacing for spotted gum plantations for maximising merchantable logs’ volume in South East Queensland, Australia
Conference name Improving the Triple Bottom Line Returns from Small-scale Forestry
Conference location Ormoc, The Philippines
Conference dates 18 - 21 June 2007
Proceedings title Improving the Triple Bottom Line Returns from Small-scale Forestry, Proceedings from an International Conference
Place of Publication Gatton, Qld, Australia
Publisher The University of Queensland
Publication Year 2007
Sub-type Fully published paper
Editor S. R. Harrison
A. Bosch
J. Herbohn
Volume 1
Start page 241
End page 252
Total pages 12
Collection year 2008
Abstract/Summary Spotted gum (Corymbia citriodora subspecies Variegata) has the potential to be the major hardwood species for large-scale plantations in South East Queensland, Australia, but production research is limited due to the lack of age of research plots. Optimal spacing is a major subject of concern. Based on time series data from a spotted gum experiment site, growth performance is analysed for five spacing levels: ─11.3 m x 11.3 m (78 stems per hectare), 7.4 m x 7.4 m (182 sph), 5.4 m x 5.4 m (343 sph), 3.6 m x 3.6 m (771 sph) and 2.9 m x 2.9 m (1189 sph). The major objective was assumed to be to maximise total merchantable log volume. A growth model was produced, and the mean diameter at breast height (dbh) and total merchantable log volume for each spacing levels at a range of harvesting ages was estimated. From the analysis, the spacing level of 5.4 m x 5.4 m was found to be optimal for maximising merchantable log volume to 10 cm small-end diameter. Further analysis of mean dbh, height and volume of the largest 200 and 250 trees from this spacing level indicates that merchantable log volume could be maximised by retaining the 250 largest trees per hectare. The total financial revenue from the best spacing level in 25 and 30 years are predicted to be $13,637 and $17,779 per hectare, respectively. If full rotation data could be obtained, more reliable models could be produced, and a more accurate financial estimate could be made.
Subjects 300000 Agricultural, Veterinary and Environmental Sciences
0705 Forestry Sciences
Keyword Spotted gum
Corymbia citriodora subspecies Variegata
South East Queensland
Large-scale plantations
References Asante, K.S., Brophy, J.J., Doran, J.C., Goldsack, R.J., Hibbert, B.D. and Larmour, J.S. (2001), 'A comparative study of the seedling leaf oils of the Spotted gums: Species of the Corymbia (Myrtaceae), Section Politaria', Australian Journal of Botany, 49: 55−66. Australian Greenhouse Office (AGO) (2000), ‘Land Clearing: A Social History’, National Carbon Accounting System, Technical Report No. 4, Canberra. Boland, D., Brooker, M., Chippendale, G., Hall, N., Hyland, B., Johnston, R., Kleinig, D. and Turner, J. (1984), Forest Trees of Australia, Nelson, CSIRO, Australia. Brown, A.J. (2002), ‘Collaborative governance versus constitutional politics: Decision rules for sustainability from Australia's South East Queensland Forest Agreement’, Environmental Science and Policy, 5(1): 19−32. BRS (Bureau of Rural Science) (2005), ‘National Plantation Inventory Australia: 2005 Updates’, http://affashop.gov.au/PdfFiles/, accessed 10 September 2006. Cacho, O.J., Hean, R.L. and Wise, R.M. (2003), ‘Carbon accounting methods and reforestation incentives’, The Australian Journal of Agricultural and Resource Economics, 47(2): 153−79. CRC for GA (Cooperative Research Centre for Greenhouse Gas Accounting) (2004), Annual Report 2003-2004, ttp://www.greenhouse.crc.org.au/crc/ecarbon/publications/ accessed 6 June 2005. Department of Primary Industries and Fisheries (DPI&F) (2000), ‘Investigating in Queensland's Private Plantations’, Brisbane. Department of Primary Industries and Fisheries (DPI&F) (2004a), ‘Forestry, Timber and Wood’, Hardwood Queensland: Species List: Spotted Gum, http//:www.dpi.qld.gov.au/hardwoodsqld/7581.html, accessed 3 April 2005. Department of Primary Industries and Fisheries (DPI&F) (2004b), ‘The Queensland Forestry Industry: An Overview of the Commercial Growing, Management and Processing of Forest Products in Queensland’, Queensland Government, Department of Primary Industries and Fisheries, Brisbane. Department of Primary Industries and Fisheries (DPI&F) (2004c), ‘Hardwood Advice: Plantation Species Profile’, Queensland Government, Department of Primary Industries and Fisheries, Brisbane. Department of Primary Industries and Fisheries and Department of Natural Resources (DPI&F and DNR) (1999), ‘Moving towards Hardwood Plantation’, Between the Leaves, www.forests.qld.gov.au/educat/btl/hardwood.htm, accessed 21 October 2004. Fekedulegn, D., Siurtain, A. and Colbert, J. (1999), 'Parameter estimation of nonlinear growth models in forestry', Silva Fennica, 33(4): 327−36. Fensham, R.J. and Fairfax, R.J. (2003), 'Assessing woody vegetation cover change in north-west Australian savannas using aerial photography', International Journal of Wildland Forest, 12 (4): 359−67. Filho, M.S. (2004), 'Opening Address', paper presented to Climate Change and Forest Sector: Clean Development Mechanism in Tropical Countries, 21−23 September 2004, Seoul, Korea. Greenfield Resource Options Pty Ltd (GRO) (1999), Silviculture, Management and Infrastructure Requirements for Hardwood Plantations in South East Queensland, Main Report, Bureau of Resources Sciences, Canberra, Australia. Huth, J., Lee, D., Lawson, S. and Smith, T. (2004), ‘Hardwood Plantation Research Field Tour: Tour of hardwood trials in Wide Bay-Burnett region of Queensland’, Queensland Government, Department of Primary Industries and Fisheries. Kirschbaum, M.U.F. (2003), 'The clean development mechanism', paper presented to international Workshop on Facilitating International Carbon Accounting in Forests, CSIRO Forestry and Forest Products, Canberra, 24 February 2003. Kooten, G.C. (2004), Climate Change Economics, Why International Accord Fail, Edward Elgar Publishing Ltd, UK. Lee, D. (2005), ‘Hybrids: Spearheading Hardwood Plantation Establishment’, a leaflet distributed during IUFRO World Forestry Congress, Queensland Government, Department of Primary Industries and Fisheries, Brisbane. Maraseni, T.N., Mathers, N.J., Harms, B., Cockfield, G. and Apan, A. (2006), 'Comparing and predicting soil carbon quantities under different land use systems on the red ferrosol soils of Southeast Queensland', paper presented to International Workshop on Development of Models and Forest Soil Surveys for Monitoring of Soil Carbon, Koli, Finland. Margules Poyry Pty Ltd (1998), Wood Fibre Yields For South East Queensland RFA Region (Draft Report), Prepared for CRA Unit, Department of Natural Resources, Brisbane and BRS, DPIE, Canberra, Australia. Marsaro, A.L. Jr., Souza, R.C., Lucia, D.T.M.C., Fernandes, J.B., Silva, M.F.G.F. and Vieira, P.C. (2004), 'Behavioural changes in workers of the leaf-cutting ant Atta sexdens rubropilosa induced by chemical components of Eucalyptus maculata leaves', Journal of Chemical Ecology, 30(9): 1771−80. Mitchell, C. and Skjemstad, J. (2004), 'Greenhouse chemistry not only in the atmosphere', Chemistry in Australia, 17, 12−16. National Forest Inventory (2004), National Plantation Inventory Update-March 2004, Bureau of Rural Sciences, Canberra. Paul, K., Polglase, P. and Richards, G.P. (2003), 'Sensitivity analysis of predicted change in soil carbon following afforestation', Ecological Modelling, 164(2−3): 137−52. Paul, K., Polglase, P., Nyakuengama, J.G. and Khanna, P.K. (2002), 'Change in Soil Carbon Following Afforestation', Forest Ecology and Management, 168(1-3): 241−57. Queensland CRA/RFA Steering Committee (1998), Commercial Plantation Land Capability Analysis of South East Queensland, Queensland CRA/FRA Steering Committee, Queensland, Brisbane. Saffigna, P.G., Moody, P.M. and Mathers, N.J. (2004). ‘Impact of cropping on the soil C and N, and the potential for C sequestration under hardwood forest plantations in subtropical Queensland, Australia’, in Conserving Soil and Water for Society: Sharing Solutions, Proceedings of the 13th International Soil Conservation Organisation Conference, Raine, S.R., Biggs, A.J.W., Menzies, N.W., Freebairn, D.M. and Tolmie, P.E. (eds), 4−8 July 2004, Brisbane. Takahashi, T., Kokubo, R. and Sakaino, M. (2004), 'Antimicrobial activities of eucalyptus leaf extracts and flavonoids from Eucalyptus maculata', The Society for Applied Microbiology, 39: 60−64. Tilman, D., Fargione, J., Wolff. B., D'Antonio, C., Dobson, A., Howarth, R. Schindler, D., Schlesinger, W., Simberloff, D. and Swackhamer, D. (2001), 'Forecasting agriculturally driven global environmental change', Science, 292: 281−84. Turner, J., Gessel, S. and Lambart, M. (1999), 'Sustainable management of native and exotic plantation in Australia', New Forests, 18: 17−32. Vanclay, J.K. (1994), Modelling Forest Growth and Yield, CAB International, Wallingford, UK. Venn, T.J. 2005, 'Financial and economic performance of long-rotation hardwood plantation investments in Queensland, Australia', Forest Policy and Economics, 7(3): 437−54. Williams, K., Ryan, P., Ross, Y., Venn, T.J. and Norman, P. (1999), Calibrating Empirical Models for Wood Volume and Yield as Inputs for Financial Planning in Agroforestry, Queensland Department of Natural Resources, Indooroopilly, Brisbane, Australia. Zammit, C., Apan, A., Cockfield, G., Brocque, A.L. and Bouldin, M.R. (2001), Prospects for Regional Sustainability: Land Use Change in the Eastern Darling Downs, 1975−2001 http://www.usq.edu.au/users/apana/landuse.pdf, accessed 9 July 2005.
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status Unknown

 
Versions
Version Filter Type
Citation counts: Google Scholar Search Google Scholar
Access Statistics: 281 Abstract Views, 1390 File Downloads  -  Detailed Statistics
Created: Fri, 31 Aug 2007, 14:57:53 EST by Annerine Bosch on behalf of Faculty Of Nat Resources, Agric & Veterinary Sc