Damming exacerbates the discontinuities of phytoplankton in a subtropical river in China.

Phytoplankton is sensitive to changes in river ecosystems. Increasing dams disrupt the continuity of river ecosystems. However, the spatial impacts of dams on phytoplankton have not been well documented.

Multiple stable isotopic approaches for tracing nitrate contamination sources: Implications for nitrogen management in complex watersheds.

Nitrate (NO) contamination of surface water is a global environmental problem that has serious consequences for watershed ecosystems and endangers human health. It is crucial to identify influences of different sources of NO, especially the incoming water from upper reaches. A combination of hydrochemistry and multi-isotope tracers (δB, δN-NO, and δO-NO) were used to determine NO sources and their transformation the North Jiulong River (NJLR), Southeast China.