講演詳細

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

日付	2024年3月8日
開始時刻	ポスター発表
会場名	543
講演番号	PJ-26（学生ポスター賞審査対象）
発表題目	Comparison of hydrological response to commercial thinning and clear-cutting of dense Japanese cedar plantation Comparison of hydrological response to commercial thinning and clear-cutting of dense Japanese cedar plantation
所属	東京大学
要旨本文	This study investigated the hydrological response of Japanese cedar plantation catchments to commercial thinning and clear-cutting through a paired catchment approach. Runoff in three neighboring catchments were monitored since 2017. In 2022, a spur road was constructed within the treatment catchments. A clear-cut was conducted in treatment catchment (M-1) and 50% commercial thinning in terms of tree stand density conducted in treatment catchment (M-2) by forest worker using chainsaw. The logs were collected using swing yarder followed by limb removal using processor and transported out from the catchments with forwarder which caused soil disturbance. The remaining catchment (M-4) acts as control. Annual runoff yield for M-1 has increased up to 220 mm after clear-cutting meanwhile M-2 has decreased 18 mm after commercial thinning.
著者氏名	○Ibtisam Binti Mohd Ghaus1 ・ Nobuaki Tanaka3 ・ Takanori Sato4 ・ Moein Farahnak2 ・ Yuya Otani5 ・ Anand Nainar6 ・ Koichiro Kuraji7 ・ Mie Gomyo8
著者所属	1The University of Tokyo ・ 2The University of Tokyo ・ 3The University of Tokyo ・ 4Tokyo University of Agriculture ・ 5Setsunan University Faculty of International Studies ・ 6University of Malaysia Sabah ・ 7The University of Tokyo ・ 8The University of Tokyo
キーワード	Paired catchment, Forest hydrology, Clear-cutting, Thinning
Key word	Paired catchment, Forest hydrology, Clear-cutting, Thinning