Abstract:The litterfall quantity, nutrient spatial characteristics of litterfall and bio-cycling function of litterfall in the materials cycling chain were discussed by the harvesting and formulary methods. The results showed that the average litterfall amount was 1.378~2.476 t/hm~2 in the alpine tundra of Changbai Mountains. The altitude was the main impact factor on litterfall quantity in the alpine tundra of Changbai Mountains by analysis of quantity characteristics of litterfall at different altitudes. The S, N ...