講演詳細

植物生態部門[Forest Ecology]

日付	2026年3月18日
開始時刻	ポスター発表
会場名	多目的ホール
講演番号	PW-35
発表題目	Variation in seed and leaf production in a Fagus crenata forest in the Naeba Mountains Variation in seed and leaf production in a Fagus crenata forest in the Naeba Mountains
所属	国立研究開発法人森林研究・整備機構
要旨本文	Mast seeding, or masting, refers to synchronous and highly variable seed production across years in perennial plant populations. It plays a critical role in forest regeneration and biodiversity maintenance. Although its ecological importance is well recognized, the physiological mechanisms remain poorly understood. Most studies emphasize internal nutrient dynamics, as seed production requires substantial resources and often involves trade-offs with other organs such as leaves and stems. Here, we present 19 years of litter-trap data from a mature Fagus crenata forest, including seven masting events. We report year-to-year variation in seed and leaf production and further analyze nitrogen allocation between leaves and seeds. These findings provide new insights into resource partitioning underlying masting and highlight the importance of long-term monitoring for understanding reproductive strategies in forest ecosystems.
著者氏名	○Qingmin Han1 ・ Daisuke Kabeya1 ・ Noguchi Kyotaro1 ・ Atsuhiro Iio2 ・ Yoshiyuki Inagaki1 ・ Mayuko Jomura3 ・ Shin-Ichi Miyazawa1 ・ Kazumichi Fujii4
著者所属	1Forestry and Forest Products Research Institute ・ 2Shikoku University ・ 3Nihon University ・ 4Fukushima Institute for Research, Education and Innovation
キーワード	masting, resource, nitrogen, allocation
Key word	masting, resource, nitrogen, allocation