| 要旨トップ | 目次 | 日本生態学会第68回全国大会 (2021年3月、岡山) 講演要旨
ESJ68 Abstract


一般講演(口頭発表) G01-06  (Oral presentation)

全球規模の最大樹高と気象・土壌要因の関係性【EPAA】
Analysis of the global patterns in canopy maximum height with respect to climatic factors and soil variables【EPAA】

*Kei TACHIBANA, Yusuke ONODA(Kyoto Univ.)

Understanding the global patterns of forest canopy height and their underlying factors is a major task in ecology because forest canopy height is critical for aboveground biomass, species diversity, and several other ecosystem functions. While many local studies have demonstrated that hydraulic limitation, mechanical stability against the wind, and soil properties are major factors that limit tree heights, to our knowledge no study analyzes the global patterns of canopy height with considerations of these three major factors together. In addition, it is known that forest heights in tropical rainforests differ among the continents, i.e. Asian tropical rainforests are higher than American or African tropical rainforests, but its reason remains unclear. El Niño–Southern Oscillation (ENSO) brings occasional strong drought to tropical rainforest regions, therefore the aperiodic extreme drought may have an additional power to explain the variation of canopy height in tropical rainforest regions. We analyzed the global canopy height with considerations of these issues. We will report and discuss the importance of wind speed, soil properties, aperiodic extreme drought as well as several other environmental variables on the global patterns of forest canopy height.


日本生態学会