Dirk Bieker, Steffen Rust. (2010). Non-destructive estimation of sapwood and heartwood width in Scots pine (Pinus sylvestris L.). Silva Fennica vol. 44 no. 2 article id 153. https://doi.org/10.14214/sf.153

Keywords: non-destructive testing; tomography; sapwood; pine

Abstract | View details | Full text in PDF | Author Info

Accurate estimates of the water conducting sapwood area are necessary to scale sapflow measurements to tree and stand level transpiration. We tested a non-destructive method, electric resistivity tomography (ERT), to estimate the area of conductive sapwood in 9 Pinus sylvestris L. trees in lower Saxony, Germany. Tomograms were compared to cross-sections stained with benzidine after harvesting. All tomograms displayed a distinct pattern of low resistivity at the stem perimeter and high resistivity in the stem centre with a steep increase in resistivity in between, assumed to indicate the transition from sapwood to heartwood. The tomograms showed a sapwood width 2 cm smaller than the staining method. This indicates that staining methods overestimate the amount of active sapwood because when heartwood is formed, moisture content decreases before extractive contents reach levels visible by staining. The ERT method is a new powerful method for the non-destructive estimation of sapwood and heartwood width.

Bieker, University of Applied Sciences and Arts, Faculty of Resource Management, Büsgenweg 1a, D-37077 Göttingen, Germany E-mail: db@nn.de
Rust, University of Applied Sciences and Arts, Faculty of Resource Management, Büsgenweg 1a, D-37077 Göttingen, Germany E-mail: rust@hawk-hhg.de

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Ilvessalo L., (1929) Utilization of tree classification in thinnings Acta Forestalia Fennica vol. 34 no. 38 article id 7251 (remove) | Edit comment

Hakkarainen A. E., (1977) Metsäteollisuuden tutkimus- ja kehittämistoimint.. Silva Fennica vol. 11 no. 3 article id 4971 (remove) | Edit comment

Gordon J. G., Gatherum G. E. (1968) Photosynthesis and growth of selected Scots pine.. Silva Fennica vol. 2 no. 3 article id 4771 (remove) | Edit comment

Yli-Vakkuri P., Autio A. et al. (1968) Time lag between final cutting and regeneration Silva Fennica vol. 2 no. 3 article id 4769 (remove) | Edit comment

Lukkala O. J., (1939) Forest management of forests in drained peatland.. Silva Fennica vol. no. 52 article id 4567 (remove) | Edit comment

Aaltonen V. T., (1939) Root systems of trees and forest management Silva Fennica vol. no. 52 article id 4552 (remove) | Edit comment

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Ståhl E. G., (1998) Changes in wood and stem properties of Pinus syl.. Silva Fennica vol. 32 no. 2 article id 693 (remove) | Edit comment

Seppälä K., (1968) Preliminary results of post-drainage development.. Silva Fennica vol. 2 no. 3 article id 4770 (remove) | Edit comment

Harstela P., (1978) Definition of the amount of strain caused by for.. Silva Fennica vol. 12 no. 1 article id 4985 (remove) | Edit comment

Westman C. J., (1977) Nutrient cycle in tree stands - Nordic symposium. Silva Fennica vol. 11 no. 3 article id 4977 (remove) | Edit comment

Laitakari E., (1935) Studies on the influence of stand and forest sit.. Acta Forestalia Fennica vol. 41 no. 4 article id 7317 (remove) | Edit comment

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