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1. Technical Introduction
The rapid prediction technology for wood properties is a model analysis technology centered on near-infrared spectroscopy analysis technology, combined with X-ray technology and other conventional analysis technologies. The application of this technology can accurately and quickly predict the density, microfibril angle and elastic modulus of plantation wood. It is of great significance for achieving early prediction of plantation wood properties, as well as targeted cultivation, expanding the utilization of plantation wood, and improving the rational processing and utilization of plantation wood resources.
This technology combines nondestructive testing techniques such as near-infrared spectroscopy and X-ray analysis with other conventional wood physical and mechanical testing techniques to develop models and perform analysis. Compared to traditional wood property testing methods, it can rapidly predict wood physical and mechanical properties. This technology was applied to model and analyze different wood property indicators for Chinese plantation wood, or for different wood sections with the same indicator. A comprehensive and systematic model for rapid prediction of wood properties for plantation eucalyptus wood was established. This achievement can provide technical support for the selection and breeding of Chinese plantation eucalyptus, as well as the rapid prediction and processing of wood property indicators.
2. Technical Features
The key to this technology is to select representative test materials, prepare specimens and molds, perform near-infrared spectroscopy scanning, and perform wood property testing, ultimately establishing a prediction model. The key technologies include: (1) using a self-designed translation stage, etc., to achieve rapid and stable acquisition of near-infrared spectra of wood samples of different sizes based on different sample shapes; (2) establishing a database of basic wood properties and near-infrared spectra for plantation wood in my country; and (3) using chemometric methods, establishing analytical models for wood microfibril angle, density, flexural modulus, flexural strength, and other properties.
3. Market Prospects
This achievement provides important methodological and technical support for the future selection and breeding of domestic artificial forest species and the rational processing and utilization of timber resources. It can also promote the rapid development of local forestry and forest product processing industries, thereby driving the development of the local economy and increasing the income of forest farmers, with certain economic and social benefits.