[M-IS05] Environmental, Socio-economic, and Climatic Changes in Northern Eurasia

[MIS05-P17] Emissions and sinks of the greenhouse gases in the key landscapes of the Carbon Supersite of the Chechen Republic

Olga Kuricheva^1,2、*Nurdin Mamadiev²、Julia Kurbatova¹、Lyubov Makhmudova² (1.A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninskiy Prosp. 33, 119071 Moscow, Russia、2.Department of Ecology and Environmental Management, Institute of Oil and Gas, Grozny State Oil Technical University, Khusein Abubakarovich Isaev Prosp. 100, 364051 Grozny, Russia)

キーワード：Eddy Covariance, Russia, Carbon monitoring, GHG

This study aimed to investigate the year-round greenhouse gases exchange in connection with water balance and meteorological parameters above the two ecosystems in the lowland part of the Chechen Republic, southern part of the European territory of Russia. The first ecosystem was the tree planted field at the Carbon Farm site (43°21’30” N, 45°44’34” E, 113 m a.s.l.) and the second one was about 200 year-old mixed broadleaf artificial forest in the Chernorechye water protection zone near the Sunzha river (43°14’32.836 N, 45°38’10.649 E, 175 m a.s.l.). The sites are located 15 km from each other to the north-east and south-west of the Grozny city, respectively. The average precipitation total for 2002–2005 and 2007–2021 for the Grozny airport meteorological station was 507 mm and the average annual temperature was 11.3℃. The period under consideration was 05.2022–12.2024 for the Carbon Farm site and 06.2023-07.2024 for the Chernorechye site.
The greenhouse gas fluxes were assessed via the eddy covariance method. The sets of equipment at the two sites were identical, except the height of the towers, which was 3m at the Farm and 30m at the Chernorechye forest site. The measurement complex included LI-7200RS and LI-7700 gas analysers for H₂O, CO₂ and CH₄ (LI-COR Inc., USA), uSonic-3 Cage MP (Metek, Germany) 3D sonic anemometer, SmartFlux2 loggers, main meteorological sensors.