Poster Session 1: Even No. Core Time [04+08]

[0408-P006] Nitrogen concentration changes over 20 years in 19 rivers in the Lake Biwa basin.

*Ken'ichi Osaka^1,4, Takashi Nakamura², Keisuke Koba^3,4, Hirotsugu Arai⁴, Kentaro Hayashi⁴ (1. The University of Shiga Prefecture (Japan), 2. University of Yamanashi (Japan), 3. Kyoto University (Japan), 4. Research Institute for Humanity and Nature (Japan))

Keywords:

Land use,Isotope,Watershed,Lake Biwa