Atmospheric deposition is still one of the major environmental issues in Asia. The joint research projects for catchment-scale analysis have been conducted in a tropical rainforest (Danum Valley, Malaysia), tropical seasonal forest (Sakaerat, Thailand) and temperate coniferous forest (Kajikawa, Japan) for future monitoring in EANET. In Kajikawa site, the possibility of nitrogen saturation was suggested by the largest level of nitrogen deposition. In tropical forests, acid buffering capacity of the ecosystems was higher in Danum Valley site than in Sakaerat site. The data in different climates will be useful for biogeochemical model as it may contribute to atmospheric management.