TY JOUR TI Agro-landscape and ecological zoning of natural forage lands by regions of Russia in the V.R. Williams federal research center (on the occasion of the 75th anniversary of Ilya Trofimov, doctor of geographical sciences, candidate of biological sciences, senior researcher specializing inforage and meadow farming) KW agriculture KW agro-landscape and ecological zoning KW rational use of natural resources KW land KW forage ecosystems JO Adaptive Fodder Production AU Shpakov, A.S. AU Teberdiev, D.M. AU Trofimova, L.S. AU Yakovleva, E.P. AU Sedova, E.G. AU Grechishnikov, N.N. AU Shevtsov, A.V. PY 2025 IS 2025 PB Federal Williams Research Center of Forage Production and Agroecology