Pollution due to livestock production

Model characteristics

  • Model name: MARINA-Antibiotics
  • Version: China-1.0
  • Application: China
  • Scales: sub-basins and annual
  • Period: 2010-2100
  • Pollutants: 24 types of antibiotics for several animal species
  • Sources: diffuse (manure application) and point sources (direct discharge of manure) of antibiotics in groundwater and in rivers via runoff and erosion
  • Main inputs: livestock numbers, antibiotic consumption and excretion rates per animal type, degradation in soils, runoff and erosion rates, soil organic content, soil texture, hydrology
  • Main outputs: inputs of antibiotics to rivers in 395 sub-basins by antibiotic type and animal species

Modelling approach

Figure 1: Conceptual framework of the model application to 395 sub-basins in China
Figure 1: Conceptual framework of the model application to 395 sub-basins in China

Modelling output (example)

Figure 2: Total amount of antibiotics excreted in animal manure (kg/year, Qi Zhang and others, under development)
Figure 2: Total amount of antibiotics excreted in animal manure (kg/year, Qi Zhang and others, under development)