Forest Science

Research introduction
「Scaling of respiratory metabolism, growing bamboo shoots and trees 」
WANG Mofei

Growing shoots of bamboo of clonal plants shows the highest growth rate among terrestrial plants. The extremely high growth rate of bamboo shoot before having leaves is considered to be mainly supported by carbon supply from underground stock.
My research subject is about plants respiration scaling. So in this case we measure the respiration & fresh weight of bamboo shoots and discuss the respiratory traits of whole-shoot of bamboo without leaves compared to those of woody species with leaves.

We concluded that this research has important implications for our understanding of physical constraints, i.e. individual mass determining metabolic scaling in plants. And we also researching about metabolic scaling of Japanese pampas grass which be infected with Fusarium or other microorganism living in high concentrations of high metals environment.

Research introduction
S. Taki(UGAS)

We are studying “Forest dynamics after wild fire in permafrost zone” in northern Mongolia from 2009 together with an international research group from Mongolian Agriculture University, Obihiro University, Iwate University, Hirosaki University, Hannover University (Germany) and Yamagata University. My study topic of 2011 is “Dynamics of swamp - forest Ecotone”. There is a vast larch (Larix sibirica) forested area in Khovsgol region. There are typical swamp-forest transition zones (Ecotone) in Darhad valley. Most typical forest species are larch and spruce (Picea obovata) and relative dominance of larch is high. In case of sandbanks and riparian forests, mixed larch and spruce forest are observed. Studies concerning grassland-forest Ecotone have been conducted, but there are few reports on swamp-forest Ecotone, especially about their temporal variability. In this study, a transect covering the swamp-forest transition zone was designed, where tree position, tree size and tree ring information were collected. Based on time series data, the future forest structure is estimated.