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Towards the in-forest assessment of Kraft pulp yield: comparing the performance of laboratory and hand-held instruments and their value in screening breeding trials
Citation
Meder, R and Brawner, JT and Downes, GM and Ebdon, N, Towards the in-forest assessment of Kraft pulp yield: comparing the performance of laboratory and hand-held instruments and their value in screening breeding trials, Journal of Near Infrared Spectroscopy, 19, (5) pp. 421-429. ISSN 0967-0335 (2011) [Refereed Article]
Copyright Statement
© M Publications LLP 2011 All rights reserved
Abstract
he non-destructive prediction of Kraft pulp yield in standing trees using near infrared (NIR) spectroscopy has been typically performed by removing 5 mm or 12 mm increment cores from candidate trees in the forest and returning the samples to the laboratory for analysis. It would be desirable to perform in-field prediction using a portable NIR device; for example, to rapidly screen individual trees in a breeding trial prior to selecting trees for further sampling. This paper compares the performance of a laboratory-based full- range Fourier transform NIR system with two portable NIR devices operating at two different spectral ranges (950–1800 nm and 1600–2400 nm). Calibrations, explaining commercially useful amounts of variance in Kraft pulp yield (R2 = 0.85–0.94) and cellulose content (R2 = 0.92–0.96), were developed for the laboratory NIR and both hand-held portable NIR instruments using woodmeal. This demonstrates that the wavelength range and resolution of the portable instruments are suitable for the prediction of Kraft pulp yield and cellulose content. In an initial in-forest trial, calibration of Kraft pulp yield ranged between R2 = 0.4–0.6 across two sites and two sampling periods. While there are still a number of in- forest sampling issues to be resolved around seasonal sampling, the implication is that low-cost, hand-held NIR systems are a feasible alternative to laboratory-based NIR systems for routine assessment of Kraft pulp yield.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | near infrared spectroscopy, Kraft pulp yield (KPY), cellulose, hand-held NIR |
| Research Division: | Agricultural, Veterinary and Food Sciences |
| Research Group: | Forestry sciences |
| Research Field: | Forestry biomass and bioproducts |
| Objective Division: | Plant Production and Plant Primary Products |
| Objective Group: | Forestry |
| Objective Field: | Forestry not elsewhere classified |
| UTAS Author: | Downes, GM (Dr Geoff Downes) |
| ID Code: | 118569 |
| Year Published: | 2011 |
| Web of Science® Times Cited: | 29 |
| Deposited By: | Plant Science |
| Deposited On: | 2017-07-13 |
| Last Modified: | 2017-11-20 |
| Downloads: | 0 |
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