Condition - pH

Physical-chemical state Changes to the acidic load entering a wetland can affect: pH of water/soil

The rapid release of acid into a wetland following rain events can reduce pH levels of the soil and water leading to disease (e.g. red-spot in fish, mass mortality events, loss of sensitive biota and the leaching of toxic metals. Acid tolerant species can dominate and prevent original plant species from re-establishing or the soil can become so acid as to prevent the growth of any plant species.

	Physical-chemical state indicators: Condition indicator: ambient water pH Condition indicator: minimum sustained water pH values during the days following an inflow event Condition indicator: ambient soil pH
	Biological impacts Changes to the pH of water/soil of a wetland can result in: A loss of sensitive species
	Biological impact indicators: Condition indicator: number of mass mortality events caused by low pH Condition indicator: change in species composition to acid tolerant species