intrusion resulting in an lead to increased GW levels: increase in salinity from its height Consult CMA Catchment Management Plan natural state Implement more efficient irrigation practices: - Benchmark current irrigation practice and reduce water use (note per cent reduction and new irrigation volume) - Stop irrigation Plant native vegetation (trees or other native deep-rooted perennials) in recharge areas (usually ridges and upper slopes) Plant native vegetation (trees or other native deep rooted perennials) in discharge areas (break of slope, or where there is perched/laterally flowing groundwater) Undertake groundwater extraction (pumping) Saline water intrusion from Cease activities that If marine water intrusion is due to the marine environment lead to marine water of fresh groundwater reduce resulting in an increase in intrusion groundwater extraction salinity from natural state Close artificially created connection to marine waters Table 20. continued. Threat Gain action Management activity Saline water is unnaturally Stop delivery of saline Divert discharge of saline water away from delivered to a fresh or water to wetland wetland (point source) brackish wetland Change irrigation and/or other land use practices (diffuse source, e.g. irrigation channels, saline runoff) Fresh water is unnaturally Stop delivery of Divert discharge of freshwater water away delivered to a saline freshwater to from wetland (point source) wetland wetland Change land use practice to stop freshwater delivery to wetland (diffuse source) Soils: Improving soil condition Wetland soils provide a physical substrate for aquatic plants and habitat for benthic invertebrates and micro-organisms. They store nutrients that are important for primary production, bind toxicants such as heavy metals and provide a site for many chemical transformations and nutrient cycling. Soils have physical (soil structure, texture and consistency), chemical (redox potential, salinity, acidity, dissolved organic carbon, nutrients, trace elements) and biological (micro-organisms, invertebrates, plants) components. The IWC includes an impact measure (soil disturbance) relating to the soil physical components.
intrusion resulting in an increase in salinity from its natural state lead to increased GW height levels: Consult CMA Catchment Management Plan Implement more efficient irrigation practices: - Benchmark current irrigation practice and reduce water use (note per cent reduction and new irrigation volume) - Stop irrigation Plant native vegetation (trees or other native deep-rooted perennials) in recharge areas (usually ridges and upper slopes) Plant native vegetation (trees or other native deep rooted perennials) in discharge areas (break of slope, or where there is perched/laterally flowing groundwater) Undertake groundwater extraction (pumping) Saline water intrusion from the marine environment resulting in an increase in salinity from natural state Cease activities that lead to marine water intrusion If marine water intrusion is due to of fresh groundwater reduce groundwater extraction Close artificially created connection to marine waters Table 20. continued. Threat Gain action Management activity Saline water is unnaturally delivered to a fresh or brackish wetland Stop delivery of saline water to wetland Divert discharge of saline water away from wetland (point source) Change irrigation and/or other land use practices (diffuse source, e.g. irrigation channels, saline runoff) Fresh water is unnaturally delivered to a saline wetland Stop delivery of freshwater to wetland Divert discharge of freshwater water away from wetland (point source) Change land use practice to stop freshwater delivery to wetland (diffuse source) Soils: Improving soil condition Wetland soils provide a physical substrate for aquatic plants and habitat for benthic invertebrates and micro-organisms. They store nutrients that are important for primary production, bind toxicants such as heavy metals and provide a site for many chemical transformations and nutrient cycling. Soils have physical (soil structure, texture and consistency), chemical (redox potential, salinity, acidity, dissolved organic carbon, nutrients, trace elements) and biological (micro-organisms, invertebrates, plants) components. The IWC includes an impact measure (soil disturbance) relating to the soil physical components.
Wetland-Tender-Field-Officer-Manual.docx