Official website of the New Zealand Farm Forestry Association


SWP technical reports by date

Please note: Some of these reports are restricted access.

  • Durable Eucalypts - A Multi-Regional Opportunity for New Zealand’s Drylands
    SWP-T076 - Access: unrestricted.
    September 2019
    Focus Areas and Action/Goals for 2019-2022 The NZDFI has developed this regional strategy to provide a rationale and overview of its planned activities over the next three years and beyond. The…

  • Non-destructive detection of the heartwood-sapwood barrier
    SWP-T088 - Access: NZFFA membership. This SWP report shall at all times be kept confidential and not directly or indirectly be made available to anyone who is not an SWP member.
    September 2019
    This study examined the feasibility of using synthetic aperture radar (SAR) imaging to identify the heartwood-sapwood barrier in trees (Eucalyptus globoidea, Eucalyptus bosistoana and Cupressus ovensii). The dielectric properties measured of…

  • Thermal Modification of Specialty Species Results of Scion’s SSIF-funded experiments
    SWP-T086 - Access: unrestricted.
    September 2019
    The problem The objective of this work is to improve the properties of two specialty wood species (Eucalyptus nitens and Cupressus lusitanica) through thermal modification. Thermal modification darkens the colour…

  • The decay resistance of six Eucalyptus species after three years exposure
    SWP-T085 - Access: NZFFA membership. This SWP report shall at all times be kept confidential and not directly or indirectly be made available to anyone who is not an SWP member.
    August 2019
    Durability stakes and stakelets were prepared from six different durable Eucalyptus species, (Eucalyptus bosistoana, Eucalyptus quadrangulata, Eucalyptus pilularis, Eucalyptus sphaerocarpa, Eucalyptus globoidea, Eucalyptus muelleriana). For each species, timber had been selected…

  • Assessed defoliation of Eucalyptus nitens breeding population to quantify genetic basis of palatability to Paropsis charybdis
    SWP-T083 - Access: NZFFA membership. This SWP report shall at all times be kept confidential and not directly or indirectly be made available to anyone who is not an SWP member.
    July 2019
    Eucalyptus nitens breeding has a long history in commercial forestry in New Zealand. This is currently the most important Eucalyptus species in the country for pulpwood, and because it is fast growing and has…

  • Experimental studies on Douglas-fir CLT connections and core-walls
    SWP-T082 - Access: unrestricted.
    June 2019
    This project report summarizes the experimental testing results of Douglas-fir Cross-laminated Timber (CLT) connections and core-walls. 54 screwed connection tests were performed under both monotonic and cyclic loading, and 31…

  • Sapwood depth tool – proof of concept field prototype
    SWP-T077 - Access: unrestricted.
    June 2019
    The sapwood depth (or size of heartwood) in standing trees can be measured by (1) the destructive method, (2) the semi-destructive method, or (3) the non-destructive method, with minimal damage…

  • Assessing the Bending and Density Properties of six Eucalypt Species
    SWP-T080 - Access: unrestricted.
    June 2019
    Small clear bending strength samples were cut from the following 16 year old trees that had already been felled for an earlier SWP durability study. E. bosistoana E. quadrangulata E.…

  • Implementation of genomic selection in provenance/progeny test of Douglas-fir
    SWP-T084 - Access: NZFFA membership. This SWP report shall at all times be kept confidential and not directly or indirectly be made available to anyone who is not an SWP member.
    June 2019
    Two Douglas-fir progeny trials planted in Kaingaroa and Gowan Hill in 1996 were assessed in 2007 and re-assessed in February 2017. Since this material contains genetically broad material coming from…

  • Minimising growth-strain in eucalypts to transform processing
    SWP-T087 - Access: unrestricted.
    June 2019
    A four-year MPI Sustainable Farming Fund project 407602 was undertaken at the University of Canterbury School of Forestry (2015-2019). The driver for the project was the perceived opportunity for high-stiffness…

  • Forest Protection SSIF research on species other than radiata pine 2018/19
    SWP-T081 - Access: NZFFA membership. This SWP report shall at all times be kept confidential and not directly or indirectly be made available to anyone who is not an SWP member.
    June 2019
    Plantation species other than Pinus radiata (radiata pine), in particular Douglas-fir and eucalypts, form an important part of a diversified forest estate. Douglas-fir is planted over approx. 105,000 ha. and is the…

  • Rotary peeling of 15 year old E. bosistoana and E. quadrangulata
    SWP-T079 - Access: NZFFA membership. This SWP report shall at all times be kept confidential and not directly or indirectly be made available to anyone who is not an SWP member.
    June 2019
    It was demonstrated that rotary peeled veneers of good surface quality can be obtained from 15 year old Eucalyptus bosistoana and E. quadrangulata trees grown in New Zealand. The mechanical…

  • Susceptibility of Eucalyptus bosistoana families to EVB defoliation across sites and families Feb/March 2019
    SWP-T078 - Access: unrestricted.
    June 2019
    In the absence of a PhD student being secured to continue the durable eucalypt health assessment work in time for the 2018-2019 summer season, Ruth McConnochie was contracted to assess…

  • Evaluation of wood stiffness in Douglas-fir progeny test FR280_2 and FR280_3
    SWP-T075 - Access: unrestricted.
    May 2019
    The key outcome from this research is that wood stiffness was found to be moderately heritable, had low genotype by environment interaction and good potential still exists for improvement in…

  • Identifying processing opportunities for key specialty tree species – resource analysis
    SWP-T068 - Access: unrestricted.
    May 2019
    This report covers the current and projected supply of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco), Cypresses and Eucalyptus nitens (Deane & Maiden) Maiden across all the major wood supply regions of…

(top)


Farm Forestry - Headlines