SWP technical reports by date
Please note: Some of these reports are restricted access.
- Programme description
SWP-T043 - Access: unrestricted.
The Specialty Wood Products Research Partnership (SWP) is a partnership between Government and industry which aims to develop a high-value specialty wood products industry based on alternatives to radiata pine,…
- LVL Trial: Pre-Harvest Stand Assessment
SWP-T042 - Access: unrestricted.
Two trials located in Marlborough have been assessed as a potential source of peeler logs to carry out a peeler study. The trials are: E. bosistoana trial planted in 2003…
- Durable eucalypt forests: A multi-regional opportunity for investment in NZ drylands
SWP-T041 - Access: unrestricted.
This consultation paper is the first step in a process to develop the New Zealand Dryland Forests Initiative (NZDFI) regional strategic plan, focusing on the establishment of durable eucalypt forests…
- Prediction of Extractive Content of Eucalyptus globoidea Heartwood Using Near Infrared Spectroscopy
SWP-T040 - Access: unrestricted.
A dissertation submitted in partial fulfilment of the requirements for the Degree of Bachelor of Forestry Science BForSc (Hons) Abstract Natural durability of wood is highly sought for a number of wood…
- Performance of naturally durable eucalypt posts in Marlborough vineyards
SWP-T039 - Access: unrestricted.
The area of vineyards in New Zealand is up from that reported in 2015, which was 35,463 ha. Posts in a vineyard average 500-600 per hectare so there are approximately…
- Scion’s core funded experiments on thermal modification of Eucalyptus nitens.
SWP-T021 - Access: unrestricted.
The objective of this work was to replicate successful lab scale thermal modifications of Eucalyptus nitens at a larger scale. Lab scale thermal modification has been shown to improve dimensional stability and…
- Quantifying compounds in heartwood extractives of durable eucalypts
SWP-T037 - Access: unrestricted.
It is known that the relative amounts of heartwood compounds differ between trees of the same species (Fries et al., 2000; Haupt et al., 2003; Partanen et al., 2011). This…
- Development of the Douglas-fir Productivity Spatial Surface using the Process-based model 3-PG
SWP-T038 - Access: unrestricted.
The objective of this report was to provide a New Zealand-wide productivity surface for Douglas-fir. This output addresses limitations of an earlier study of Douglas-fir spatial productivity that was based…
- Expert Advisory Panel review of the SWP programme - 2017
SWP-T035 - Access: unrestricted.
The project has many strengths and a few weaknesses (detailed in the body of the report). The main strengths include active industry/research collaborations, strong science, and a large team with…
- Potential for Growing and Processing Durable Eucalypts in New Zealand
SWP-T036 - Access: unrestricted.
In NZ there is considerable commercial interest in finding alternative forest species to radiata pine which (1) are naturally durable and do not require chemical preservative treatment for either in…
- Pest management for durable eucalypts
SWP-T029 - Access: unrestricted.
One of the more unexpected and important results from the phenology study summarised here, was that only one generation of P. charybdis was observed in each of the two years monitored. This…
- Modelling growth of Eucalyptus spp. on New Zealand dryland micro-sites
SWP-T027 - Access: unrestricted.
New Zealand’s planted forests are mainly established on low value land, especially land that is not useful for pastoral agriculture. Much of the low value land is found in hill country, which…
- Predicting Strain Levels in Air-dried Wood using near Infrared Spectroscopy
SWP-T020 - Access: unrestricted.
To investigate the possibility of measuring strain using near infrared (NIR) spectroscopy, spectra of air-dried radiata wood samples were collected while under different levels of tension stress. The spectral changes…
- Drying Eucalyptus nitens: Screening for checking and collapse
SWP-T022 - Access: unrestricted.
Eucalyptus nitens frequently develops within-ring checks and collapse (washboarding) during drying, making the wood unsuitable for use as sawn timber. Numerous studies have tried altering drying conditions to reduce levels…
- Early Heartwood Screening by Wounding
SWP-T024 - Access: unrestricted.
Trees can be screened at age (1-2 years) for wood properties such as growth stress, collapse, density or stiffness (Chauhan and Entwistle, 2010; Chauhan et al., 2013). Early selection reduces…