Plot of the observed ET (LAS) and the modelled ET (MEDRUSH8). For the MEDRUSH8 model, inputs were weather data at 20 min intervals (air temp, RH, radiation, wind speed and soil temp). The stomatal conductance used was 8 mmol·m −2 ·s −1 .

Plot of the observed ET (LAS) and the modelled ET (MEDRUSH8). For the MEDRUSH8 model, inputs were weather data at 20 min intervals (air temp, RH, radiation, wind speed and soil temp). The stomatal conductance used was 8 mmol·m −2 ·s −1 .

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Ecosystem services in the South African grassland biome are being impacted by the presence of invasive alien plants (IAPs), particularly from the Australian genus Acacia. IAPs have elevated landscape water use and determining water fluxes is crucial to defining suitable interventions. This study evaluates three models of water flux over IAP-invaded...