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Larch species are distributed broadly in the permafrost region of eastern Eurasia. This area may be a key to regulating global CO2 fixation and storage (Hollinger et al. 1998). Atmospheric CO2 is still increasing yearly which may have caused the increase in ambient temperature since the early 1900s (Strain 1985; Mooney et al. 1991). In fact, the ambient temperature of higher latitudes between about...
Modeling of trees based on whole-plant physiology is a powerful tool to understand function and structure of forest ecosystems (Yoda et al. 1963; Hozumi and Shinozaki 1974; McCree 1983; Sievänen et al. 1988; Hagihara and Hozumi 1991; Mori and Hagihara 1991; Shugart et al. 1992; Watanabe et al. 2004). In particular, whole-plant carbon budget is a sensitive and biologically meaningful indicator to understand...
Below-ground processes have been highlighted in the studies of carbon flux, nutrient cycling, and biodiversity in many terrestrial ecosystems under changing climates (e.g., Chapin and Ruess 2001; Schulze 2006). So far, as tree roots are concerned, much attention has recently been paid to the study of fine roots rather than coarse roots (Brunner and Godbold 2007), since fine roots are more important...
Tree stem is a major part of the carbon sink in forest ecosystems because of its large storage and long-term preservation. It may also have large potential as a factor in global carbon dynamics. Therefore, analysis of stem growth has drawn increasing attention, in which the study of radial growth responses in trees is an important subject to be understood in the effects of global warming on carbon...
Larch is the tree species most widely spread in the permafrost region of Siberia (Anonymous 1977; Dilis 1981; Koropachinskii 1983; Abaimov et al. 1997). Morphological and physiological features of the larch allowed it to adapt to severe conditions of climate, permafrost, and poor soils. The northern tree line of this species corresponds to the latitudinal timberline (Dilis 1981; Abaimov 1995). Tree-ring...
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