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Windthrow damage in Picea abies is associated with physical and chemical stem wood properties


, : Windthrow damage in Picea abies is associated with physical and chemical stem wood properties. Trees 22(4): 463-473

On 26 December 1999, the windstorm Lothar hit large parts of western and central Europe. In Switzerland, windthrow losses reached 12.7Miom3 of timber, corresponding to 2.8 times the annual national timber harvest. Although these exceptional losses were due to extreme peak velocities, recent changes in tree nutrition may have increased forest susceptibility. Previous controlled environment experiments revealed that wood density (associated with wood stiffness) tends to increase in elevated CO2, and to decrease when N-availability is enhanced (e.g., by soluble N-deposition). Such changes in wood quality could theoretically influence the risk of wind damage. We used the Lothar windstorm as a natural experiment to explore links between damage and wood properties. In 104 windthrow sites across the Swiss Plateau, more than 1,600 wood cores from (1) broken, (2) uprooted and (3) still standing (not damaged) spruce trees (Picea abies) were collected in February and March 2000. Wood properties, treering width and chemistry of the wood samples were analysed. Broken trees showed wider treerings in the decade 199099 compared to non-broken trees (either uprooted or undamaged trees). Broken trees also showed lower non-structural carbohydrate (NSC) concentration in sapwood, reflecting active structural carbohydrate sinks associated with fast growth. There was also a trend for higher tissue N-concentrations in broken trees. No significant differences between damage types were found in wood density and wood shrinkage during desiccation. We conclude that stem breakage risk of P. abies is associated with a stimulation of growth in the past decade and with changes in tree nutritional status. However, the risk for windthrow of whole spruce trees (uprooted but not broken) was not related to the studied wood parameters.

US$19.90

DOI: 10.1007/s00468-007-0206-3


Other references

Berg, S., 1982: Significance of legal medicine in archaeology. Beitrage Zur Gerichtlichen Medizin 40: 287-296

Numaguchi, S.; Esumi, M.; Sakamoto, M.; Endo, M.; Ebihara, T.; Soma, H.; Yoshida, A.; Tokuhashi, Y., 2016: Passive cigarette smoking changes the circadian rhythm of clock genes in rat intervertebral discs. We aimed to elucidate the molecular changes in intervertebral discs (IVDs) caused by passive smoking. Rats were subjected to 8 weeks of passive smoking; thereafter, their lumbar vertebrae were harvested. The annulus fibrosus and cartilage endplate...

Maisel, EA., 1980: The effects of environment on morphological characters of the marine harpaticoid copepod Tachidius discipes. Dissertation Abstracts International B Sciences and Engineering, 4010: 4628-4629

Al-Mudhaffar, S.A.; Fahad, N.M., 1979: Characterization of the multiple forms of monoamine oxidase from chronic schizophrenic sera. Either half or one hour incubation time was enough to get a constant production of benzylaldehyde and were proportional to the amount of enzyme added. The optimal temperature of MAO, I, II, III, IV are 60 degrees, 37 degrees, 60 degrees, 45 degree...

Guardino, V.A.erna, V., 1975: Lipids in photosynthetic tissues of plants with Hatch-Slack metabolic pathway. I. Fatty acids composition of pigweed (Amaranthus retroflexus L.) leaf and chloroplast lipids. Rivista italiana delle sostanze grasse: 52 (6) 198-202

Roumagnac, P.; Weill, Fçois-Xavier.; Dolecek, C.; Baker, S.; Brisse, S.; Chinh, N.Tran.; Le, T.Anh.Hong.; Acosta, C.J.; Farrar, J.; Dougan, G.; Achtman, M., 2006: Evolutionary history of Salmonella typhi. For microbial pathogens, phylogeographic differentiation seems to be relatively common. However, the neutral population structure of Salmonella enterica serovar Typhi reflects the continued existence of ubiquitous haplotypes over millennia. In co...

Hongo, T.; Fujii, Y.; Fukuoka, T.; Iijima, S.; Matsusita, T.; Nakagawa, Y.; Igarashi, Y., 1992: Long-term treatment in infantile choriocarcinoma. The long-term treatment of a 5 month old boy with precocious puberty secondary to the production of chorionic gonadotropin (hCG) by a choriocarcinoma is described. Of 13 cases of infantile choriocarcinoma reported in the literature, none were succ...

Johnson, J.E., 1991: Viruses getting their heads together. Current Biology 1(5): 287-289

Koukourakis, M.I.; Giatromanolaki, A.; Chong, W.; Simopoulos, C.; Polychronidis, A.; Sivridis, E.; Harris, A.L., 2003: Amifostine induces anaerobic metabolism and hypoxia-inducible factor 1 alpha. The cytoprotective mechanism of amifostine (WR-2721) implies free radical scavenging and DNA repair activities. We investigated additional cytoprotective pathways involving intracellular hypoxia and the activation of the hypoxia-inducible factor (...

Salabé, G.B.; Robbins, J., 1970: The nature of particulate thyroid proteins in an experimental rat thyroid tumor. Biochimica et Biophysica Acta 214(1): 198-206