Using nitrate dual stable isotopes to investigate the impact of the Three Gorges Dam on the nitrogen cycle within the Changjiang (Yangtze) River

Kalina C Grabb1, Yu Xin2, Shuai Ding3, Xiaoyan Ning3 and Su Mei Liu4, (1)Massachusetts Institute of Technology, EAPS, Cambridge, MA, United States, (2)Ocean University of China, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Qingdao, China, (3)Ocean University of China, Marine Chemistry, Qingdao, China, (4)Ocean University of China, Qingdao, China