Spatio-Temporal Dynamics and Source Apportionment of Nutrient Loading in a High-Altitude Fragile River: A Case Study of the Niyang River, Qinghai-Tibet Plateau
This study addresses the critical knowledge gap in nutrient dynamics within high-altitude fragile ecosystems by investigating the Niyang River, a primary tributary of the Yarlung Zangbo River. A multidimensional diagnostic framework was developed by coupling the Comprehensive Pollution Index (CPI) with a refined Output...