GBR Catchment land use and nutrient levels information from the great Barrier Reef Marine Park Authority To Water Quality Monitoring Program - Undersea Explorer The GBR catchment is the principle source of pollutants to the GBR Grazing (sediments, nutrients) Cropping (nutrients, pesticides) Fertilizer loss from the paddock : Rates of nitrogen fertilizer use (recommended) sugar ~ 200 kg/ha/yr cotton ~ 150 kg/ha/yr bananas ~ 400 kg/ha/yr Generally >50% of fertilizer is lost from the paddock to streams, atmosphere & groundwater water quality data sheet - example
GBR Catchment land use and nutrient levels information from the great Barrier Reef Marine Park Authority
To Water Quality Monitoring Program - Undersea Explorer
water quality data sheet - example
