Author(s): Takaya Kaneko; Atsuya Ikemoto; So Kazama

Linked Author(s):

Keywords: Daptation; Mitigation; Tree logging; River flood; CO2 reduction

Abstract: This study quantitatively evaluated the reduction rate of expected annual damage (adaptation) and the amount of CO2 reduction (mitigation) due to tree logging in river channels for a Class A rivers in Japan. The mitigation effect of tree logging was calculated in terms of CO2 emissions reduction, accounting not only for CO2 reduction from biomass power generation but also for CO2 emissions from transporting trees from the logging site to the power generation facility. The maximum flood damage reduction rate due to tree logging was 2.5% in the Joganji River. The CO2 emission reductions were largely divided between eastern and western Japan. This is largely dependent on the area of trees and watershed area. There were 30 water systems in which the logging of trees in the river channel was highly effective in both adaptation and mitigation. In 19 water systems, both adaptation and mitigation were greater when downstream logging was conducted. In the middle reaches, there were 11 water systems. Logging upstream resulted in lower damage mitigation and CO2 reduction. Logging upstream may increase damage, therefore the selection of logging sites should be done carefully.

DOI: https://doi.org/10.64697/978-90-835589-7-4_41WC-P1672-cd

Year: 2025