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Fig. 4 | Annals of Forest Science

Fig. 4

From: Using electrical resistivity tomography to detect wetwood and estimate moisture content in silver fir (Abies alba Mill.)

Fig. 4

ER tomograms (a, d, g), corresponding cross-section (b, e, h), and X-ray scanning images (c, f, i) obtained for 3 logs. Areas of high resistivity in tomograms are indicated by red colors (≥400 Ωm), while areas of low resistivity are indicated by blue colors (≤200 Ωm).On X-ray scanning images, black areas indicate partially air-filled tracheids and light-gray areas indicate the water-filled tracheids

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Annals of Forest Science

ISSN: 1297-966X