講演詳細

立地部門[Forest Environment]

日付	2024年3月8日
開始時刻	ポスター発表
会場名	532
講演番号	PI-2（学生ポスター賞審査対象）
発表題目	冷温帯林におけるミヤコザサ除去が根のバイオマスと形態形質に及ぼす影響 Ten-year effects of Sasa removal on root biomass and morphological traits in Japanese cool-temperate forests
所属	九州大学
要旨本文	Sasa understory is an important component of Japanese cool-temperature forest, but effects of presence of Sasa on forest fine root biomass and morphology traits remains poorly understood. To fill this gap, we evaluated the effects of 10-year Sasa nipponica removal on fine root biomass and morphological traits in Larix kaempferi (LK) and Quercus crispula (QC) stand. Following Sasa removal, fine root biomass of Sasa significantly decreased, especially for those with a diameter of less than 1 mm; total fine root biomass and length reduced by 53.8% and 78.6% in LK but had no significant changes in QC. We also found that Sasa removal significantly reduced tissue density of Sasa root in QC. Our results indicate that effects of Sasa removal on fine root biomass and traits mediated by overstory species.
著者氏名	○付東川1 ・ 李周強1 ・ 阿部隼人1 ・ 菱拓雄2,4 ・ 福澤加里部3 ・ 智和正明2,4
著者所属	1九州大学大学院生物資源環境科学府 ・ 2九州大学大学院農学研究院 ・ 3北海道大学北方生物圏フィールド科学センター中川研究林 ・ 4九州大学農学部附属福岡演習林
キーワード	ササ除去, 根バイオマス, 細根形態形質, 冷温帯林
Key word	Sasa removal, Root biomass, Fine root morphological traits, Japanese cool-temperate forests