TY JOUR TI NITROGEN AND CARBON RESERVES IN THE SOILS OF SPRUCE FORESTS OF THE MURMANSK REGION KW soil; North taiga spruce forests; carbon; nitrogen; automorphic landscapes; Murmansk region JO Bulletin of Nizhnevartovsk State University AU Zhivov, D.A. AU Suhareva, T.A. PY 2025 IS 0 PB Nizhnevartovsk State University