Volume-wighted montly mean chemistry of throughfall (n=4) from May 1990 to April 1993 in TOEF, Japan. Note that original data of four replicates at each sampling time are also available in JaLTER metacat. The data are published in Shibata. H., Satoh, F., Tanaka, Y. and Sakuma, T. (1995) The role of organic horizons and canopy to modify the chemistry of acidic deposition in some forest ecosystems. Water, Air, and Soil Pollution 85: 1119-1124.; Shibata, H. and T. Sakuma (1996) Canopy Modification of Precipitation Chemistry in Deciduous and Coniferous Forests Affected by Acidic Deposition. Soil Science and Plant Nutrition 42: 1-10.; Shibata, H., M. Kirikae, Y. Tanaka, T. Sakuma and R. Hatano (1998) Proton Budgets of Forest Ecosystems on Volcanogenous Regosols in Hokkaido, northern Japan, Water, Air, and Soil Pollution 105: 63-72.; Shibata, H., F. Satoh, K. Sasa, M. Ozawa, N. Usui, O. Nagata. Y. Hayakawa and R. Hatano (2001) Importance of Internal Proton Production for the Proton Budget in Japanese Forested Ecosystems. Water, Air, and Soil Pollution 130: 685-690.