TY JOUR TI KW territory organization KW ecological orientation KW natural KW agronomical KW landscape-ecological KW ecological-economic zoning KW unit of zoning KW assessment methods KW linear elements JO MOSCOW ECONOMIC JOURNAL AU Emel'yanova, T.A. AU Novikov, D.V. AU Demidova, M.M. PY 2018 IS 3 PB Electronic science