2015
DOI: 10.1007/s11273-015-9447-x
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Prioritising wetlands subject to secondary salinisation for ongoing management using aquatic invertebrate assemblages: a case study from the Wheatbelt Region of Western Australia

Abstract: Secondary salinisation is recognised worldwide as a threat to aquatic biodiversity. Wetlands in the Wheatbelt Region of Western Australia are particularly affected as a result of clearing of deeprooted native vegetation for agriculture. Between 1996 and 2001, the Western Australian government nominated six natural diversity recovery catchments (NDRCs), being catchments with high value and diverse wetlands in need of protection. One, the BuntineMarchagee NDRC, supports approximately 1000 wetlands in varying sta… Show more

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Cited by 7 publications
(2 citation statements)
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“…In summer, freshwater varied between 8 • C and 14 • C, and was higher mainly in shallow areas, in contrast to winter, when the temperature was greater at stations close to the mouth due to the stabilizing effect of the sea. In addition, the increase in surface water temperature regulates energy flows and evaporation rate increases, thereby affecting the water level [20,34,56], as well as influencing the generation of secondary salinization processes, mainly in urban wetlands, as recently described in wetlands of western Australia [57], South Africa [58] and North America [59]. The increase in salinity due to evaporation can become a serious threat to ecological structure and functioning.…”
Section: Physochemical Parametersmentioning
confidence: 99%
“…In summer, freshwater varied between 8 • C and 14 • C, and was higher mainly in shallow areas, in contrast to winter, when the temperature was greater at stations close to the mouth due to the stabilizing effect of the sea. In addition, the increase in surface water temperature regulates energy flows and evaporation rate increases, thereby affecting the water level [20,34,56], as well as influencing the generation of secondary salinization processes, mainly in urban wetlands, as recently described in wetlands of western Australia [57], South Africa [58] and North America [59]. The increase in salinity due to evaporation can become a serious threat to ecological structure and functioning.…”
Section: Physochemical Parametersmentioning
confidence: 99%
“…In arid regions, rapid evaporation of impure irrigation water leaves behind salt residues on the soil surface, and waterlogging of soil with natural salt deposits may mobilize salt upwards (Sumner, 1995). Loss of ecosystem services associated with salinization due to agricultural intensification is not a new problem e it was a significant contributor to the dissolution of the Sumerian nation-state in~1800 BCE (Jacobsen and Adams, 1958), and losses of riverine and wetland ecosystem services from saline runoff underscores the potential of salinization for long-term, watershed-scale impacts (Hart et al, 1991;Delaney et al, 2015). Indeed, the agricultural and ecological effects of soil salinization are widespread (e.g., Rietz and Haynes, 2003;Houk et al, 2006) with approxiamately 50% of global agricultural soils experiencing some degree of salinization, resulting in agricultural costs of roughly US $12 billion annually (Smedema and Shiati, 2002;Pitman and L€ auchli, 2002).…”
Section: Soil Feedbacks and Non-linear Systems Shifts: Implications Fmentioning
confidence: 99%