Birch stands growth increase in Western Siberia

Тип публикации: статья из журнала

Год издания: 2014

Идентификатор DOI: 10.1080/02827581.2014.912345

Ключевые слова: birch stands, CO2 fertilization, climate-induced tree growth, birch stands, climate-induced tree growth, Biometrics, Drought, Forestry, Vegetation, Betula pendula roth, Biometric parameters, Diameter-at-breast heights, Drought indices, Inventory data, Tree growth, Vegetation periods, Western siberia, Carbon dioxide, Betula, Biometrics, Carbon Dioxide, Drought, Fertilization, Forestry, Betula pendula

Аннотация: Birch (Betula pendula Roth) growth within the Western Siberia forest-steppe was analyzed based on long-term (1897-2006) inventory data (height, diameter at breast height [dbh], and stand volume). Analysis of biometry parameters showed increased growth at the beginning of twenty-first century compared to similar stands (stands age = 40-60 years) at the end of nineteenth century. Mean height, dbh, and stem volume increased from 14 to 20 m, from 16 to 22 cm, and from similar to 63 to similar to 220 m(3)/ha, respectively. Significant correlations were found between the stands mean height, dbh, and volume on the one hand, and vegetation period length (r(s) = 0.71 to 0.74), atmospheric CO2 concentration (r(s) = 0.71 to 0.76), and drought index (Standardized Precipitation-Evapotranspiration Index, r(s) = -0.33 to -0.51) on the other hand. The results obtained have revealed apparent climate-induced impacts (e. g. increase of vegetation period length and birch habitat drying due to drought increase) on the stands growth. Along with this, a high correlation of birch biometric parameters and [CO2] in ambient air indicated an effect of CO2 fertilization. Meanwhile, further drought increase may switch birch stand growth into decline and greater mortality as has already been observed within the Trans-Baikal forest-steppe ecotone.

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Издание

Журнал: SCANDINAVIAN JOURNAL OF FOREST RESEARCH

Выпуск журнала: Vol. 29, Is. 5

Номера страниц: 421-426

ISSN журнала: 02827581

Место издания: OSLO

Издатель: TAYLOR & FRANCIS AS

Авторы

  • Kharuk Viacheslav I. (Sukachev Forest Inst, Krasnoyarsk 660036, Russia; Siberian Fed Univ, GIS Chair, Krasnoyarsk 660036, Russia)
  • Kuzmichev Valeriy V. (Sukachev Forest Inst, Krasnoyarsk 660036, Russia)
  • Im Sergey T. (Sukachev Forest Inst, Krasnoyarsk 660036, Russia; Siberian Fed Univ, GIS Chair, Krasnoyarsk 660036, Russia)
  • Ranson Kenneth J. (NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA)

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