Organic matter of the soil of the mountain tundra in North Fennoscandia

The accumulation of organic matter and the major nutrients associated with it (nitrogen and phosphorus) in soils of the mountain tundra is determined by the intensity of the processes of conservation of plant debris. A low nitrogen content (C : N = 12–26) is indicative of the accumulation of weakly humified organic matter. Organic phosphorus compounds mostly accumulate in organogenic horizons with organic matter humified to a greater degree.