講演詳細

防災・水文部門[Forest Disaster Prevention and Hydrology]

日付	2024年3月10日
開始時刻	ポスター発表
会場名	543
講演番号	PJ-49
発表題目	Soil carbon dynamics in two Phyllostachys stands: abandoned bamboo stands still can be carbon sinks? Soil carbon dynamics in two Phyllostachys stands: abandoned bamboo stands still can be carbon sinks?
所属	九州大学大学院
要旨本文	Asian bamboo forests can have a high potential for carbon (C) sequestrations. Our previous studies showed that Phyllostachys bamboo forests can have high net ecosystem production (NEP), which neared global-scale maximum NEP. On the other hand, still few studies examined if the bamboo forests under the abandoned conditions can have high NEP. We measured monthly soil respiration and its components, i.e., heterotrophic (Rh) and autotrophic respirations in two Phyllostachys stands such as Madake and Moso bamboo forests in Kasuya Research Forest, Kyushu University. In the sites, we have been monitoring above- and below-ground net primary productions (NPP). Our measurements showed negative NEP (=NPP-Rh) in both sites, in particular, the lower NEP was found in the Moso site than the Madake site due to enhanced heterotrophic respiration in the Moso site in summer. Our study suggests un-managements lower bamboo forest C sequestration ability.
著者氏名	○Kume, Tomonori1 ・ Villaverde, Larisa2 ・ Abe, Hayato2 ・ Orrego, Marly M1 ・ Ayumi, Katayama1
著者所属	1Kyushu University ・ 2Kyushu University
キーワード	soil respiration, soil temperature, soil water, NEP
Key word	soil respiration, soil temperature, soil water, NEP