Open access
Sep 2026
Identifying nitrate sources and nitrogen transformation in a karst river–groundwater system using dual nitrate isotopes and a Bayesian (SIAR) mixing model
Karst basins have permeable surface-subsurface connections that can accelerate nitrogen transport. The Lipu River Basin in southern Guilin is affected by intensive agriculture and industrial activity, but its nitrate sources and transformations remain poorly resolved. We integrated dual nitrate isotopes (δ15N-NO3⁻ and...
Zupeng Wan, Bao-Jun Liu, Wen-Wen Chen et al.
· Environmental Earth Sciences · 0 citations