JapanFlux2024 RU-NeB Neleger Burnt Forest

In order to obtain basic information for GHG reduction by permafrost disturbance control, it is necessary to monitor changes in the GHG budget at the disturbance site and to quantitatively evaluate the impact. Since permafrost disturbance is induced by thermal equilibrium collapse due to disturbance of the overlying ecosystem, changes in the surface heat and water balance due to ecosystem disturbance should also be monitored simultaneously. The purpose of this study was to determine the effects of forest disturbance on the surface heat, water, and CO2 budgets and permafrost dynamics in a permafrost area through long-term monitoring. Long-term continuous monitoring of surface heat, water, and CO2 budgets was conducted in larch forests, fire sites, and logging sites near Yakutsk, Russian Federation.为获取通过调控多年冻土（permafrost）扰动实现温室气体（Greenhouse Gas，GHG）减排的基础数据，需对扰动区域的温室气体收支变化进行监测，并对其影响开展定量评估。由于多年冻土扰动由上覆生态系统破坏引发的热平衡塌陷所致，因此需同步监测生态系统扰动导致的地表水热平衡变化。本研究旨在通过长期监测，明确多年冻土区森林扰动对地表水热、二氧化碳（CO₂）收支及多年冻土动态的影响。研究团队在俄罗斯联邦雅库茨克周边的落叶松林、火烧迹地与采伐迹地，开展了地表水热、二氧化碳收支的长期连续监测。