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Method for predicating length of pinus taeda wood fibers by using near infrared spectrum technology

A near-infrared spectroscopy and wood fiber technology, which is applied in the field of predicting the length of loblolly pine wood fibers by using near-infrared spectroscopy, can solve problems such as loblolly pine that have not yet been seen, achieve good stability of results, overcome cumbersome determination steps and low cost. Effect

Inactive Publication Date: 2014-11-05
SOUTH CHINA AGRI UNIV
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Problems solved by technology

But there is no fast, accurate, simple and low-cost prediction method for the fiber length of taeda pine

Method used

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  • Method for predicating length of pinus taeda wood fibers by using near infrared spectrum technology
  • Method for predicating length of pinus taeda wood fibers by using near infrared spectrum technology
  • Method for predicating length of pinus taeda wood fibers by using near infrared spectrum technology

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Embodiment Construction

[0030] The present invention is further explained below in conjunction with the examples, but the examples do not limit the present invention in any form.

[0031] The loblolly pine resin samples used in this embodiment when building the model are taken from: the artificial test forest of loblolly pine in Longshan Forest Farm, Lechang City, Guangdong Province; the samples of three different populations of loblolly pine to be predicted are 270 samples of progeny determination forests , 56 samples of the core group and 36 samples of the seed orchard were taken from the Yingde Forest Farm in Yingde City, Guangdong Province.

[0032] Adopt the following steps to realize the present invention:

[0033] 1. Sample collection and routine measurement of fiber length

[0034] (1) Sample collection: Select 15-year-old loblolly pine plantations from the 15-year-old loblolly pine plantations to select high-quality loblolly pine plants with vigorous growth, diameter at breast height of mor...

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Abstract

The invention discloses a method for predicating the length of pinus taeda wood fibers by using a near infrared spectrum technology. According to the method, a predication model for the length of the pinus taeda wood fibers is established based on the near infrared spectrum technology and is used for rapidly and accurately determining the length of the pinus taeda wood fibers. Due to the establishment of the predication model for the length of the pinus taeda wood fibers based on the near infrared spectrum technology, the defects that determination steps are complicated, the procedure is complicated, a manual operation error is great, the cost is high and the like in a previous conventional determination method are overcome; according to the technology, chemicals cannot be wasted, and the harms of the chemicals to a human body are alleviated; a sample is not consumed in a measurement process and the influences on the sample are not generated from the appearance to the inside, so that the measurement is typical nondestructive analysis measurement; according to the method, the measurement repeatability is good, the analysis efficiency is high and the result stability is good. The invention provides a rapid, simple, accurate, lossless and low-cost testing method for improved variety selection of pinus taeda in China.

Description

technical field [0001] The invention relates to a method for predicting the length of pine wood fibers, in particular to a method for predicting the length of taeda pine wood fibers by using near-infrared spectroscopy. Background technique [0002] Loblolly pine is native to the southeastern United States and is the main afforestation tree species in the southeastern United States. It has been introduced to China for more than 60 years. It has a straight and round stem shape and excellent material properties. It is one of the successfully introduced tree species. It is the strongest and most versatile wood in structural purposes. Its wood can be used for construction, pulp and fiber. Loblolly pine is rich in turpentine, which can be extracted and processed into rosin. Its quality is high, and it has become an important industrial timber afforestation tree species in vast areas of our country. In addition, the tree is tall and straight, with a crown like a torch and a strai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/359
Inventor 刘纯鑫刘天颐黄少伟牛品罗峰谭锦芬
Owner SOUTH CHINA AGRI UNIV
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