s , platinum , copper , vanadium , salt , natural gasLand use : arable land : 10 % permanent crops : 1 % meadows and pastures : 65 % forest and woodland : 3 % other : 21 % Irrigated land : 11 , 280 sq km ( 1989 est . ) Environment : current issues : lack of important arterial rivers or lakes requires extensive water conservation and control measures ; growth in water usage threatens to outpace supply ; pollution of rivers from agricultural runoff and urban discharge ; air pollution resulting in acid rain ; soil erosion ; desertificati