Sub-basin scale analysis

Model characteristics

  • Model name: MARINA-Nutrients (the first, original version for China)
  • Version: China-1.0
  • Application: China
  • Scales: sub-basins and annual
  • Period: 1970-2050
  • Pollutants: dissolved inorganic (DIN, DIP), organic (DON, DOP) nitrogen and phosphorus
  • Sources: point (sewage) and diffuse (agriculture, natural areas)
  • Main inputs: agricultural activities, sewage systems, land use, hydrology
  • Main outputs: river export of DIN, DIP, DON and DOP by source and sub-basin

Modelling approach

Figure 1: Conceptual framework of the model application to China
Figure 1: Conceptual framework of the model application to China

Model outputs (example)

Figure 2: Total river export of phosphorus by sub-basin for 1970, 2000, and 2050 (in kton/year). Published in Strokal et al., (2016)
Figure 2: Total river export of phosphorus by sub-basin for 1970, 2000, and 2050 (in kton/year). Published in Strokal et al., (2016)