Estimation of whole-tree kraft pulp yield of Eucalyptus nitens using near-infrared spectra collected from increment cores
العنوان: | Estimation of whole-tree kraft pulp yield of Eucalyptus nitens using near-infrared spectra collected from increment cores |
---|---|
المؤلفون: | Laurence R. Schimleck, Jim French, Carolyn A Raymond, Anthony J. Michell, Peter D. Kube |
المصدر: | Canadian Journal of Forest Research. 35:2797-2805 |
بيانات النشر: | Canadian Science Publishing, 2005. |
سنة النشر: | 2005 |
مصطلحات موضوعية: | Global and Planetary Change, Horticulture, Ecology, biology, Kraft process, Near infrared spectra, Botany, Environmental science, Forestry, Eucalyptus nitens, biology.organism_classification |
الوصف: | Eucalyptus nitens (Deane and Maiden) Maiden (shining gum) is widely grown for kraft pulp production. Improving the kraft pulp yield of E. nitens increases plantation profitability but traditional assessment is slow and expensive, which hinders improvement. Near-infrared (NIR) spectroscopy provides a rapid and inexpensive method for estimating pulp yield, but studies have been limited to estimating whole-tree pulp yield using whole-tree composite samples obtained destructively. For whole-tree pulp-yield calibrations to be used non-destructively they must be applied to increment cores. In this study we used a Tasmanian E. nitens whole-tree pulp yield calibration to estimate the whole-tree pulp yields of trees from a site not included in the calibration. This was done using NIR spectra from increment cores and whole-tree composite chips. Predictions of whole-tree pulp yield based on increment cores were better than those obtained using whole-tree composite chips. The accuracy of pulp-yield predictions was greatly improved by adding a small number of prediction-set samples to the calibration sets. Calibrations for estimating whole-tree pulp yield were also obtained using NIR spectra from milled cores and whole-tree composite chips. The calibrations had similar statistics, indicating that it is possible to obtain calibrations for estimating whole-tree pulp yield based on increment-core NIR spectra. |
تدمد: | 1208-6037 0045-5067 |
URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::581f4215857a179fc011e6985141afb5 https://doi.org/10.1139/x05-193 |
حقوق: | CLOSED |
رقم الأكسشن: | edsair.doi...........581f4215857a179fc011e6985141afb5 |
قاعدة البيانات: | OpenAIRE |
تدمد: | 12086037 00455067 |
---|