Official website of the New Zealand Farm Forestry Association

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Inventory and Decision Support Software

Calculators

This software has been developed by Future Forests Research for sensitivity analysis of growth modelling and testing management regimes, to derive future production and income in P. radiata; also available for other species listed. Radiata calculator members only.

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Information leaflets

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Tree Grower articles

  • Practical hints for measuring trees
    Allan Laurie, New Zealand Tree Grower February 2006. Fundamental to the future decision about harvest is the need to understand how the woodlot is performing in terms of annual tree growth.…
  • Measuring radiata pine and forecasting yields
    Dave Crawley, New Zealand Tree Grower May 2007. Measuring radiata pine and forecasting yields has become a highly specialised area and there is now an increasing array of software and tools…
  • Stand density index – a useful tool for New Zealand redwood plantings
    New Zealand Tree Grower February 2007. Measuring growing space occupancy in redwoods is not new. In 1933, a researcher named Reineke reported data for even-aged stands in California, presenting a…
  • Tree planter's record system
    Euan Mason, New Zealand Tree Grower May 2005. Tree planters record system (TPRS) software has been developed by the Farm Forestry Association with the support of the Sustainable Farming Fund. This…
  • MARVL pre-harvest inventory system
    Jim Cooke & Rob Webster, New Zealand Tree Grower May 2005. No, MARVL is not shorthand for one of the wonders of the world but something much more prosaic. MARVL is…
  • Version 2 Calculators: Upgrading the business of farm forestry
    Piers Maclaren & Leith Knowles, New Zealand Tree Grower May 2005. Download the Radiata calculator version 4 (NZFFA members only) » Is farm forestry a business or is it just a hobby?…
  • GIS and indigenous forest management
    Roger May, New Zealand Tree Grower February 2005. A geographical information system (GIS) is a computerised mapping system which can be used for map roduction, operational planning, spatial analysis and record-keeping. The…

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Other sources of information

  • How Much Wood Has Your Woodlot Got?
    Maclaren, J. P. (2000) Forest Research Bulletin No. 217 (pp. 135). Rotorua, NZ: NZ Forest Research Institute.
    Practical guide to woodlot inventory, aimed at farm foresters. Somewhat dated (eg excludes use of electronic technology such as GPS and Vertex).
  • Inventory Practice for Managed Forests 
    Goulding, C. J., & Lawrence, M. E. (1992). FRI Bulletin No. 171 (pp. 50). Rotorua, NZ: NZ Forest Research Institute.
    Handbook aimed at professional foresters. Could still be of value to farm foresters keen on accurate forest inventory. Somewhat dated (eg excludes use of electronic technology such as GPS and Vertex).

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