| 要旨トップ | ESJ69 シンポジウム 一覧 | 日本生態学会第69回全国大会 (2022年3月、福岡) 講演要旨
ESJ69 Abstract


シンポジウム S17  3月18日 13:00-16:00 Room C, 現地開催/ライブ配信あり/見逃し配信対応

Decomposition process in terrestrial ecosystem: its controlling factors and consequences on diversity and ecosystem functions

Hiroko KUROKAWA(FFPRI), Takashi OSONO(Doshisha Univ.)

Decomposition study is “unnoticeable", because, who cares about “after life"? However, decomposition of plant litter is a critical process in carbon and nutrient cycles and may also affect carbon sequestration in soils in terrestrial ecosystems. In actual, the process of leaf litter decomposition has been well studied, and is now known to be basically controlled by climates (e.g., temperature and precipitation), plant litter quality (e.g., nitrogen and lignin), and decomposer organisms (e.g., microbes and animals). However, the factors affecting decomposition may still vary among types of plant materials (i.e., leaf, wood, and root) or ecosystems. Deeply understanding the underlying mechanisms of those processes are essential for better predicting the response of ecosystem function such as carbon cycling and sequestration to climate changes. In this symposium, we gather the various topics about decomposition processes, including diversity of decomposer fungi, photodegradation, home-field advantage effect, and wood and root decomposition. We will also have comments from the perspectives of below-ground diversity and ecosystem functioning, respectively, and have a discussion with audiences about the future direction of decomposition studies.

Commentators: Motohiro Hasegawa (Doshisha Univ.), Rota Wagai (Institute for Agro-Environmental Sciences)

[S17-1]
Fungal bleaching of leaf litter *Takashi OSONO(Doshisha Univ.)

[S17-2]
Photodegradation accelerates carbon cycle in a temperate forest *Qing-Wei WANG(IAE, CAS), Marta PIERIST(Univ. Helsinki), Tanaka KENTA(Univ. Tsukuba), Thomas Matthew ROBSON(Univ. Helsinki), Hiroko KUROKAWA(FFPRI)

[S17-3]
Home-field advantage of decomposition process: its controlling factors and implications to future climate changes *Hiroko KUROKAWA(FFPRI), Michio OGURO(FFPRI), Maya M. DAUMAL(Maastricht Univ.), Miki U. UEDA(Japan Women's Univ.), Sakino TAKAYANAGI(The Jikei Univ.), Tohru NAKASHIZUKA(FFPRI)

[S17-4]
Relationship between wood and leaf litter decomposability across species *Takuya KOBAYASHI, Michio OGURO, Hisatomo TAKI, Hiroko KUROKAWA(FFPRI)

[S17-5]
Fine roots release a greater amount of acidic materials than leaves during decomposition *Toko TANIKAWA(Nagoya Univ.), Saori FUJII(FFPRI), Lijuan SUN(Peking Univ.), Yasuhiro HIRANO(Nagoya Univ.), Yosuke MATSUDA(Mie Univ.), Nagamitsu MAIE(Kitasato Univ.)


日本生態学会