1H Nuclear Magnetic Resonance of Lodgepole Pine Wood Chips Affected by the Mountain Pine Beetle

Article, Other literature type English OPEN
Hartwig Peemoeller ; Ian D. Hartley ; Jianzhen Liang ; Roshanak Teymoori ; Tara M. Todoruk (2010)
  • Publisher: MDPI AG
  • Journal: Materials, volume 4, issue 1, pages 131-140 (issn: 1996-1944, eissn: 1996-1944)
  • Related identifiers: pmc: PMC5448470, doi: 10.3390/ma4010131
  • Subject: QC120-168.85 | nuclear magnetic resonance (NMR) | spin-spin relaxation time | free induction decay (FID) | Engineering (General). Civil engineering (General) | Technology | Article | TA1-2040 | T | Electrical engineering. Electronics. Nuclear engineering | TK1-9971 | Microscopy | mountain pine beetle | QH201-278.5 | Descriptive and experimental mechanics | lodgepole pine | moisture content

In this study, wood-water interactions of mountain pine beetle affected lodgepole pine were found to vary with time since death. Based on an analysis of magnetization components and spin-spin relaxation times from 1H NMR, it was determined that the mountain pine beetle attack does not affect the crystalline structure of the wood. Both the amorphous structure and the water components vary with time since death, which could be due to the fungi present after a mountain pine beetle attack, as well as the fact that wood from the grey-stage of attack cycles seasonally through adsorption and desorption in the stand.
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