[A-HW36] Material transport, biodiversity and environmental changes in watersheds from headwaters to coasts

[AHW36-P20] Biogeochemical Nutrient Cycling in Lake Towada

★Invited Papers

*Fumiko Nakagawa¹, Han Chen¹, Peilin Zhang¹, Takashi Sambuichi¹, Urumu Tsunogai¹ (1. Graduate School of Environmental Studies, Nagoya University)

Keywords:oligotrophic lake, nitrogen cycle, phosphorus cycle, triple oxygen isotope, N/P ratio