Use of δ 13 C and δ 15 N as Indicators to Evaluate the Influence of Sewage on Organic Matter in the Zhangjiang Mangrove–Estuary Ecosystem, Southeastern China. - Li, Danyang; Yan, Jinpei; Lu, Zhiqiang; Chu, Tianshu; Li, Jun; Chu, Tajen (Water (20734441), 2023)