Muni - 2,460 km; Bioko - 300 km of standard-gauge

per 1,000 persons); domestic traffic carried primarily by microwave radio relay links on east and south Natural resources: bauxite, gypsum, limestone Land use: arable land: 5% permanent crops: 0% meadows and pastures: 6% forest and woodland: 63% other: 24% Irrigated land: 90 km2 (1989 est.) Environment: pollution control measures improving air and on the

tenor