[A-CG47] [EJ] Material Circulations in Land Ecosystems

[ACG47-P01] Soil respiration in deciduous forests with different disturbance history

Tomotsugu Yazaki¹, Itchoku Kamakura³, Lifei Sun², *Takashi Hirano¹, Munemasa Teramoto⁴, Naishen Liang⁴ (1.Research Faculty of Agriculture, Hokkaido University, 2.Graduate School of Agriculture, Hokkaido University, 3.School of Agriculture, Hokkaido University, 4.Center for Global Environmental Research, National Institute for Environmental Studies)

Keywords:Topsoil stripping, leaf litter, root, soil organic matter, spatial variation

Soil respiration is an important pathway of the carbon cycle in forest ecosystems. Topsoil stripping (thereinafter, TSS) is a promising practice for weed control for sapling growth. However, few studies clarified effects of TSS on soil respiration. We monitored soil respiration in naturally-regenerating forests after windthrown disturbance having different management history, including the topsoil-intact site and the topsoil-removed site. We evaluated effects of topsoil on the soil respiration.