MODELING NET ECOSYSTEM EXCHANGE OF  $\mathrm{CO_2}$ USING MACHINE LEARNING TECHNIQUES: (a case study of Sakhalin Island). Proceedings of the YSU C: Geological and Geographical Sciences, Yerevan, Armenia, v. 59, n. 2 (266), p. 240–250, 2025. DOI: 10.46991/PYSUC.2025.59.2.240. Disponível em: https://journals.ysu.am/index.php/proceedings-geol-geogr/article/view/vol59_no2_2025_pp240-250. Acesso em: 7 feb. 2026.