The estimate of the effective fuel combustion value of forest community in the Daxingan Mountain

Rapid migration of Mongolian oak into the southern Asian boreal forest

“…However, Mongolian oak was shown to possess intermediate shade tolerance (Beon & Bartsch, 2003; Kweon & Comeau, 2021), allowing it to adapt to the light conditions beneath the canopy of the larch forest. In addition, the canopy of boreal larch forest allows considerable sunlight transmittance to the forest floor (Zheng et al., 1986) and this may potentially both alleviate the light limitation of young Mongolian oaks and protect them from potential photo damage of unshaded sunlight. Moreover, Mongolian oaks had stronger capacities to utilize essential nutrients, especially nitrogen, that widely limits the growth of Dahurian larch in the studied region (Xing et al., 2022).…”

“…Mongolian oak is an initially fast but overall slowly growing tree species with intermediate shade tolerance that generally reaches 3–9 m in height and begins sexual reproduction at 15–20 years old (Chen et al., 2017; Xu et al., 2022; Zheng et al., 1986). However, Mongolian oak trees grow slowly at their northmost distribution edge (e.g., the northern part of the Greater Khingan Mountains) due to the poor growth conditions, such as cold climate and low soil N availability (Chen et al., 2017; Wang et al., 2005; Xu et al., 2022; Zheng et al., 1986). Dahurian larch is a fast‐growing deciduous, photophilic conifer tree species that reaches 6–10 m in height at its first maturity (about 20 years old) (Jiang et al., 1990; Si & He, 1985).…”

“…Mongolian oak and Dahurian larch are ecologically distinct in several aspects. Mongolian oak is an initially fast but overall slowly growing tree species with intermediate shade tolerance that generally reaches 3-9 m in height and begins sexual reproduction at 15-20 years old (Chen et al, 2017;Xu et al, 2022;Zheng et al, 1986).…”

“…However, Mongolian oak trees grow slowly at their northmost distribution edge (e.g., the northern part of the Greater Khingan Mountains) due to the poor growth conditions, such as cold climate and low soil N availability (Chen et al, 2017;Wang et al, 2005;Xu et al, 2022;Zheng et al, 1986). Dahurian larch is a fast-growing deciduous, photophilic conifer tree species that reaches 6-10 m in height at its first maturity (about 20 years old) (Jiang et al, 1990;Si & He, 1985).…”

“…However, Mongolian oak was shown to possess intermediate shade tolerance (Beon & Bartsch, 2003;Kweon & Comeau, 2021), allowing it to adapt to the light conditions beneath the canopy of the larch forest. In addition, the canopy of boreal larch forest allows considerable sunlight transmittance to the forest floor (Zheng et al, 1986) ( Xing et al, 2022). As reflected by the elementomes, higher contents of the macronutrients could favor photosynthesis and growth of Mongolian oak in competition with regenerating larch and/or native shrubs in the partially shaded understories.…”