This analysis shows increasing total nitrogen and decreasing total phosphorus in Baiyangdian Lake, implying significant land use impacts on nutrient management.
Key Points
Eutrophication trends showed total nitrogen increased by 1.55×10⁻⁴ mg·L⁻¹·yr⁻¹, raising concerns for lake health.
Total phosphorus declined significantly at 2.05×10⁻⁴ mg·L⁻¹·yr⁻¹, while chlorophyll-a decreased by 0.12 µg·L⁻¹·yr⁻¹.
Remote sensing with Landsat and water quality monitoring unravelled these nutrient dynamics over 34 years.
Spatial hotspots near urban and agricultural areas indicated land use changes had compounded effects on nutrient transport.