講演詳細

立地部門[Forest Environment]

日付	ポスター発表
会場名	（学生ポスター賞の審査対象）
講演番号	P-296
発表題目	Effects of litter and soil N mineralization on soil solution chemistry in a Moso bamboo and a Japanese cedar forest Effects of litter and soil N mineralization on soil solution chemistry in a Moso bamboo and a Japanese cedar forest
要旨本文	To evaluate the effects of bamboo invasion on forest biogeochemical nitrogen (N) cycling, we conducted a stand-scale investigation to evaluate soil solution chemistry in forest floor (0-5 cm). N mineralization of litter and mineral soil (0-5 cm) was also measured by the laboratory incubation method. The inorganic N concentration of soil solution was significantly lower in Moso bamboo (BF) than in Japanese cedar forest (CF) . Litter net N mineralization rates were not significantly different between BF and CF, indicating that litter mineralization may not affect inorganic N concentration in surface soil. Additionally, mineral soil net N mineralization rate of surface soil was significantly higher in BF than in CF, indicating that soil N mineralization could not explain the lower inorganic N concentration in BF. Previous studies demonstrated that N uptake in BF was much higher than that in CF, potentially leading to the lower N concentration in BF.
著者氏名	○Fu, Dongchuan1 ・ Chiwa, Masaaki2 ・ Li, Zhouqiang1
著者所属	1Kyushu University ・ 2Kyushu University
キーワード	N mineralization, Moso bamboo forest, Japanese cedar forest, soil solution chemistry
Key word	N mineralization, Moso bamboo forest, Japanese cedar forest, soil solution chemistry