Wood transformation in dead-standing trees in the forest-tundra of Central Siberia

Тип публикации: статья из журнала

Год издания: 2009

Идентификатор DOI: 10.1134/S1062359009010099

Ключевые слова: Larix, Picea

Аннотация: Changes in the composition of wood organic matter in dead-standing spruce and larch trees depending on the period after their death have been studied in the north of Central Siberia. The period after tree death has been estimated by means of cross-dating. The results show that changes in the composition of wood organic matter in 63% of cases are contingent on tree species. Wood decomposition in dead-standing trees is accompanied by an increase in the contents of alkali-soluble organic compounds. Lignin oxidation in larch begins approximately 80 years after tree death, whereas its transformation in spruce begins not earlier than after 100 years. In the forest-tundra of Central Siberia, the rate of wood organic matter transformation in dead-standing trees is one to two orders of magnitude lower than in fallen wood, which accounts for their role as a long-term store of carbon and mineral elements in these ecosystems.

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Издание

Журнал: BIOLOGY BULLETIN

Выпуск журнала: Vol. 36, Is. 1

Номера страниц: 58-65

ISSN журнала: 10623590

Место издания: NEW YORK

Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER

Авторы

  • Mukhortova L.V. (Sukachev Institute of Forest,Siberian Branch,Russian Academy of Sciences)
  • Kirdyanov A.V. (Sukachev Institute of Forest,Siberian Branch,Russian Academy of Sciences)
  • Myglan V.S. (Siberian Federal University)
  • Guggenberger G. (Martin-Luther-Universitat Halle-Wittenberg,Institut fur Agrar- und Ernahrungswissenschaften)

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