[A-CG54] 陸域生態系の物質循環

[ACG54-P06] A long term evaluation of carbon balance in a managed urban forest in central Japan using a Forest Biogeochemical Model (BGC-ES)

王 郭超⁴、*矢崎 友嗣¹、大場 真²、久米 俊郎⁴、甲斐 貴光³ (1.明治大学農学部、2.国立環境研究所、3.明治大学黒川農場、4.明治大学大学院農学研究科)

キーワード：都市緑地、落葉広葉樹林、枯損木除去、土壌炭素、バイオマス炭素、炭素隔離

Carbon sink function in urban forests has been attracted attention a mitigation strategy of global warming. Urban forests are usually managed (removing dead and damaged trees, and undergrowth) for preserving scenery and securing safety. Removing trees (thinning) in urban forests of Kanto region, central Japan, unlike the forestry thinning, the thinning is characterized by low intensity and high frequency. Here, we aimed to clarify the effects of these managements on the carbon balance of deciduous broadleaf vorest, and to clarify how we can reduce carbon emission from the urban forest management. We calculated the carbon balances under different management scenarios using a forest biogeochemical model (BGC-ES model) to elucidate effects of urban forest management on carbon sink function.