Example framework description

Human activity (street sources) - e.g. agriultural activities Indicator - % irrigated cropping land (High % = high pressure

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Management practices - e.g. appropriate timing and rates of fertiliser application Indicator - % irrigated cropping farms using nutrient best management practices. (Low % = high likelihood of nutirent loss to waterways)

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Direct pressure on the system - e.g. nutirent load entering the wetland Indicator - total nitrogen load entering the wetland. (High load = high pressure)

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Waterbody's vulnerability - e.g. a wetland's natural water residence time and water clarity Indicator - a wetland's water residence time and water clarity Indicator - a wetland's water residence time and water clarity index. (Low index (i.e. long water residence time and good water clarity) = bad consequences will result from an increased nutirent load.

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Physical-chemical state - e.g. nutrient concentration in the water colum. Indicator - oxidised nitrogen. (High concentrations = poor phys-chem. condition)

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Biological impact - e.g. plant biomass. Indicator - algal blooms. (high number = poor biological condition)