Official Journal of the Japan Wood Research Society
Table 2 Summary of second derivative spectral changes with degradation of softwood
Refs. | Fig. | Species | Degradation | 6130 cm−1 | 5986 cm−1 | 5890 cm−1 | 5800 cm−1 | 5750 cm−1 |
|---|---|---|---|---|---|---|---|---|
Peak 9 | Peak 10 | Peak 11 | Peak 12 | Peak 13 | ||||
2-c | Cypress (Chamaecyparis obtusa) | NNTY9p | + | − | + | − | + | |
2-c | Cypress (Chamaecyparis obtusa) | NNTY59a | − | + | NA | − | NA | |
17 | 1-a | Cedar (Cryptomeria japonica) | Thermal (air-dry) | NAa | − | − | − | NA |
16 | 2-c | Cypress (Chamaecyparis obtusa) | Hygrothermal | + | NA | + | − | + |
7 | 2-a | Cypress (Chamaecyparis obtusa) | Aging (Todaiji) | NA | – | + | − | NA |
12 | 1-e | Spruce (Picea abies L. Karst) | White-rot fungi | NA | − | − | − | NA |
12 | 1-e | Spruce (Picea abies L. Karst) | Brown-rot fungi | NA | + | − | − | NA |
4 | 4 | Pine | Waterlogged | NA | + | + | + | NA |
20 | 4 | Cypress (Chamaecyparis obtusa) | UV lightning | NA | − | NA | − | NA |