TY JOUR TI SYSTEMATIZATION OF ECOLOGICAL FUNCTIONS AND SERVICES OF URBAN LANDS KW environmental and economic assessment KW urban lands KW ecosystem services KW natural capital KW integral indicator KW sustainable urban development KW land resources KW territorial management JO Actual directions of scientific researches of the XXI century: theory and practice AU Maslov, D.E. AU Yakovleva, E.A. PY 2026 IS 14 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov