TY JOUR TI THE RESULTS OF STUDIES OF THE EFFECTIVENESS OF FELLING LIGHTENING OF OLD WINDLESS FOREST STRIPS KW protective forest strips (PZP) KW PZLP design KW clearing felling KW Zone of influence KW yield KW profitability KW payback JO Agrobiotechnologies and digital farming AU Safiollin, F.N. AU Suleymanov, S.R. AU Loginov, N.A. AU Gabbasov, I.I. PY 2023 IS 2 PB Kazan state agrarian University