Review of biogeocenological studies conducted in the USSR in 1970.
D000383:Agriculture; D000531:Altitude; D000818:Animals; D001695:Biology; D003081:Cold Climate; D004463:Ecology; D055593:Geological Phenomena; D005844:Geology; D010944:Plants; D012987:Soil; D014586:USSR; D014867:Water
D012987:Soil; D014867:Water