Academic literature on the topic 'Salinization New South Wales Murray-Darling Basin'
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Journal articles on the topic "Salinization New South Wales Murray-Darling Basin"
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Mckenzie, DC, TS Abbott, KY Chan, PG Slavich, and DJM Hall. "The nature, distribution and management of sodic soils in New-South-Wales." Soil Research 31, no. 6 (1993): 839. http://dx.doi.org/10.1071/sr9930839.
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Accurate data on the distribution of the various types of sodic soils in New South Wales are not available. However, general observations suggest that large areas are affected by structural instability as a result of sodicity, particularly on grey clays and red-brown earths of the Murray-Darling Basin. There is a strong need for new sodicity surveys because the production of crops and pasture often is well below potential on these lands. Exchangeable sodium data on their own do not adequately describe sodic soil behaviour, so information is also required about related factors such as electrical conductivity, exchangeable magnesium, clay mineralogy, pH, calcium carbonate content, degree of remoulding, and the frequency of continuous stable macropores. Critical limits for sodicity that are used by soil management advisory services need to be redefined. Considerable research into the reclamation and management of sodic soils has occurred in the irrigation areas and rainfed cropping districts of the Murray-Darling Basin in New South Wales. Mined and by-product gypsum, and to a lesser extent lime, have been shown to greatly improve the physical condition and profitability of production from soils with a dispersive surface. However, the responses to these treatments are less likely to be economical when sodicity is confined to the subsoil. Adequate supplies of gypsum and lime are available in New South Wales, but further research is required to determine economically optimal and environmentally acceptable rates and frequencies of application, particle sizes and chemical compositions for different farming systems that utilize the various types of sodic soil.
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Jerry, Dean R. "Phylogeography of the freshwater catfish Tandanus tandanus (Plotosidae): a model species to understand evolution of the eastern Australian freshwater fish fauna." Marine and Freshwater Research 59, no. 4 (2008): 351. http://dx.doi.org/10.1071/mf07187.
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The geologically complex eastern Australian coastal margin supports the highest taxonomic diversity of freshwater fishes on the continent. However, mechanisms leading to coastal biogeographic patterns are poorly understood. A 399-bp fragment of the hypervariable mtDNA control region was sequenced from populations of eel-tailed catfish (Tandanus tandanus) to determine their phylogeographic structure and to relate this to proposed biogeographic mechanisms and landform evolution. Genetic structure in Tandanus is complex, with haplotypes clustering into three lineages: a phylogenetically distant, northern Queensland clade that is probably a new species; a mid-northern New South Wales clade corresponding to the recently discovered ‘Bellinger’ Tandanus cryptic species; and a third ‘derived’ clade T. tandanus. Phylogenetic analyses suggest that eastern Australian Tandanus originally invaded freshwaters from the coast where volcanic activity in the north and increasing aridity from the Paleocene reduced inter-fluvial connections, causing genetic divergence of northern Queensland and mid-northern New South Wales populations. The haplotypes represented by Murray–Darling drainage T. tandanus were the most derived, indicating that this species originally evolved on the coast and subsequently colonised the Murray–Darling basin. Tandanus in eastern Australia is phylogenetically structured and possibly comprises three species in this region; a pattern potentially shared by other eastern Australian freshwater fishes.
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Gatehouse, Robyn D., I. S. Williams, and B. J. Pillans. "Fingerprinting windblown dust in south-eastern Australian soils by uranium-lead dating of detrital zircon." Soil Research 39, no. 1 (2001): 7. http://dx.doi.org/10.1071/sr99078.
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The U-Pb ages of fine-grained zircon separated from 2 dust-dominated soils in the eastern highlands of south-eastern Australia and measured by ion microprobe (SHRIMP) revealed a characteristic age ‘fingerprint’ from which the source of the dust has been determined and by which it will be possible to assess the contribution of dust to other soil profiles. The 2 soils are dominated by zircon 400–600 and 1000–1200 Ma old, derived from Palaeozoic granites and sediments of the Lachlan Fold Belt, but also contain significant components 100–300 Ma old, characteristic of igneous rocks in the New England Fold Belt in northern New South Wales and Queensland. This pattern closely matches that of sediments of the Murray-Darling Basin, especially the Mallee dunefield, suggesting that weathering of rocks in the eastern highlands has contributed large quantities of sediment to the arid and semi-arid inland basins via internally draining rivers of the present and past Murray–Darling River systems, where it has formed a major source of dust subsequently blown eastwards and deposited in the highland soils of eastern Australia.
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Higgisson, William, Sue Briggs, and Fiona Dyer. "Responses of nitre goosefoot (Chenopodium nitrariaceum) to simulated rainfall and depth and duration of experimental flooding." Marine and Freshwater Research 70, no. 4 (2019): 493. http://dx.doi.org/10.1071/mf18161.
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Nitre goosefoot (Chenopodium nitrariaceum (F.Muell.) is a woody shrub that occurs at the edges of floodplains and other intermittently flooded areas across the Murray–Darling Basin. No studies have been conducted on the hydrological requirements of nitre goosefoot, and the species is not considered in watering requirements of floodplain species of the Murray–Darling Basin. This study investigated the effects of simulated rainfall and depth and duration of experimental flooding on mortality, leaf production, biomass and seed production of nitre goosefoot. Nitre goosefoot plants were grown from seeds collected near Hillston, New South Wales, Australia. The plants were subjected to the following 14 hydrological treatments: dry (no water applied), rainfall (simulating rainfall conditions at Hillston) and 12 combinations of three water depths (10cm, 50cm, 75cm) with four durations of inundation (5 days, 10 days, 20 days, 40 days). The study found that nitre goosefoot plants survived flooding, providing plants were not totally submerged, leaf production increased during flooding and after drawdown, and leaf production, biomass and seeding were highest under shallow flooding for approximately 1 month. The results of the study allow the hydrological requirements of nitre goosefoot to be considered in environmental watering programs.
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Llewellyn, L. "Observations on the breeding biology ofAmbassis agassiziiSteindachner, 1867 (Teleostei: Ambassidae) from the Murray Darling Basin in New South Wales." Australian Zoologist 34, no. 4 (January 2008): 476–98. http://dx.doi.org/10.7882/az.2008.026.
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Gell, Peter A., Sorell Bulpin, Peter Wallbrink, Gary Hancock, and Sophie Bickford. "Tareena Billabong - a palaeolimnological history of an ever-changing wetland, Chowilla Floodplain, lower Murray - Darling Basin, Australia." Marine and Freshwater Research 56, no. 4 (2005): 441. http://dx.doi.org/10.1071/mf04107.
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A 427-cm sediment core was extracted from Tareena Billabong, a Murray River floodplain wetland in the extreme south-west of New South Wales, Australia. Analysis of fossil diatoms and pollen, sediment 210Pb and 137Cs profiles and radiocarbon and luminescence dating reveal that Tareena Billabong has undergone substantial environmental change in its ~5000-year history. Shortly after its formation, the billabong was a freshwater lagoon with a diatom flora dominated by Synedra ulna and Planothidium lanceolatum. An increase in Aulacoseira granulata, a river plankton dominant today, reflects two phases of increased connectivity with the Murray River in the mid to late Holocene. A shift to lagoonal taxa after ~3000 years BP is attributed to water balance and river-flow changes, possibly associated with regional climate change. Importantly, it appears to have undergone an extended phase of increasing turbidity, and possibly wetland salinity, commencing ~3000 years BP. Sedimentation increased at least 15-fold in the European phase. Billabong salinity increased markedly soon after European settlement, reaching a peak in the late 1800s AD. While regulation then increased the degree of connection between the billabong with the River in the 1920s AD, salinity levels remained high. Increased salinity is revealed by increases in the diatom taxa Amphora spp., Cyclotella meneghiniana, Gyrosigma acuminatum, Planothidium delicatulum and Tryblionella hungarica and by declines in Casuarinaceae, Eucalyptus, Myriophyllum and Cyperaceae pollen. Tareena Billabong was subjected to considerable environmental pressures from the early stages of European settlement in terms of sediment load, hydrological change and salinity.
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Hoetzel, G., and R. Croome. "Long-term phytoplankton monitoring of the Darling River at Burtundy, New South Wales: Incidence and significance of cyanobacterial blooms." Marine and Freshwater Research 45, no. 5 (1994): 747. http://dx.doi.org/10.1071/mf9940747.
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Changes in the phytoplankton population at Burtundy are described, based on data (1980-92) from the algal, water quality and flow monitoring programmes of the Murray-Darling Basin Commission; cell densities and community composition are discussed in relation to flow, turbidity, temperature and nutrients. Of 102 taxa from seven classes recorded in the 628 phytoplankton samples, only seven taxa occurred in >30% of samples and 55 taxa occurred in <I% of samples. Total cell densities remained below 10 000 cells mL-1 for around 70% of the study period. The population was characterized by the presence of Bacillariophyceae and Chlorophyceae and the irregular development of cyanobacterial blooms. Eight genera of cyanobacteria contributed to 17 population peaks exceeding 10 000 cells mL-1. Ten of these peaks occurred during a low-flow period from April 1985 to June 1988 when turbidity was usually less than 50 NTU, and two were recorded at river temperatures of less than 14°C. Total cell density and community composition had no apparent seasonal pattern but had five distinct phases related to flow and turbidity. Seasonal temperature cycles and availability of nutrients appear to be less important than flow and turbidity in determining the longer-term variations observed in the algal population.
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Vanags, C. P., and R. W. Vervoort. "Hydrological and water-use efficiency implications of geomorphological stratification in palæochannels in the Northern Murray–Darling Basin." Crop and Pasture Science 64, no. 12 (2013): 1182. http://dx.doi.org/10.1071/cp13168.
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Regional climactic variability coupled with an increasing demand on water has placed an even greater pressure on managers to understand the complex relationships between surface water and groundwater in the Murray–Darling Basin. Based on limited soil sampling combined with geophysical observations, past research has suggested that relic subsurface drainage features (also known as palæochannels) have a higher risk of deep drainage and lateral flow, particularly where water is impounded or applied as irrigation. The aim of this study was to investigate the hydrological behaviour of an irrigated 25-ha site in North-western New South Wales in more detail to predict deep drainage risk in the presence of palæochannel systems. Several years of direct and indirect observations, including soil sampling and groundwater measures, were collected. Coupling the field data with one- and two-dimensional water balance models revealed a more complex behaviour where a palæochannel functions like a large underground drain. In contrast to other studies, this study suggests that the actual palæochannel does not pose a higher drainage risk, but the combination of the palæochannels with the surroundings soils does have a higher deep drainage risk.
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Gonzalez, Dennis, Peter Dillon, Declan Page, and Joanne Vanderzalm. "The Potential for Water Banking in Australia’s Murray–Darling Basin to Increase Drought Resilience." Water 12, no. 10 (October 21, 2020): 2936. http://dx.doi.org/10.3390/w12102936.
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Banking water in aquifers during wet years for long-term storage then recovering it in drought is an application of managed aquifer recharge (MAR) that minimises evaporation losses. This requires a suitable aquifer for long-term storage of banked water and occasional periods when entitlements to surface water are available and affordable. This has been widely practised in Arizona and California but thus far not in Australia, in spite of severe impacts on agriculture, society, and the environment during recent droughts in the Murray–Darling Basin. This preliminary study based on a simple area exclusion analysis using six variables, some on a 90 m grid, over the 1 million km2 basin produced a first estimate of the order of 2–4 × 109 m3 of additional aquifer storage potential in surficial aquifers close to rivers. For 6 of the 23 catchments evaluated, banking capacity exceeded an average water depth of 0.3 m for the irrigated area. At one prospective site in the Macquarie River catchment in New South Wales, water banking operations at various scales were simulated using 55 years of historical monthly hydrologic data, with recharge and recovery triggered by dam storage levels. This showed that the estimated 300 × 106 m3 additional local aquifer capacity could be fully utilised with a recharge and recovery capacity of 6 × 106 m3/month, and recharge occurred in 67% of months and recovery in 7% of months. A novel simulation of water banking with recharge and recovery triggered by water trading prices using 11 years of data gave a benefit cost ratio of ≈ 2. Data showed that water availability for recharge was a tighter constraint on water banking than aquifer storage capacity at this location. The analysis reveals that water banking merits further consideration in the Murray–Darling Basin. Firstly, management across hydrologically connected systems requires accounting for surface water and groundwater entitlements and allocations at the appropriate scale, as well as developing equitable economic and regulatory arrangements. Of course, site-specific assessment of water availability and hydrogeological suitability would be needed prior to construction of demonstration projects to support full-scale implementation.
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Gabbrielli, E. "The use of modelling and reuse techniques in the development of water management systems in basins with limited water resources." Water Science and Technology 49, no. 7 (April 1, 2004): 33–38. http://dx.doi.org/10.2166/wst.2004.0409.
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Drawing on experiences in New South Wales from 1950 to 1980 in modeling and re-use techniques in the development of desalination technology and its application in fresh water production for potable use, the paper describes how Australia realized its responsibilities in developing participative and sustainable approaches to land use and water resources management. An analysis of the lessons from the operation of the Bayswater zero-discharge power station significantly contributed to the debate on sustainable approaches, highlighting that no management policy of a water basin can be implemented without a model based on reliable data from all sectors (including the environment), and no management model can be implemented without the participation of all stakeholders. These ideals were reflected in the conception and establishment of the Murray-Darling Basin Commission. The Commission succeeded in bringing together all major stakeholders in this huge basin, though it took more than 15 years to do so. While widely recognized as one of the most advanced and successful experiences in integrated management of a drainage basin, it has still not achieved the reversal of many unsustainable agricultural practices, giving a clear indication of the difficulties and time required for producing sustainable solutions.
Dissertations / Theses on the topic "Salinization New South Wales Murray-Darling Basin"
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King, Alison Jane 1974. "Recruitment ecology of fish in floodplain rivers of the southern Murray-Darling Basin, Australia." Monash University, Dept. of Biological Sciences, 2002. http://arrow.monash.edu.au/hdl/1959.1/8391.
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McCarthy, Michael G. (Michael George). "Effect of timing of water deficit on fruit development and composition of Vitis vinifera cv. Shiraz." 1997. http://web4.library.adelaide.edu.au/theses/09PH/09phm1233.pdf.
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Includes bibliographies. This thesis describes an irrigation experiment established on Vitis vinifera cv. Shiraz in a mature vineyard in the Australian Murray-Darling basin. It concentrates on the relationship between the timing of the water deficit and the depth of irrigation applied and the difference in berry weight between different irrigation treatments. The study includes a polynomial equation which describes the relation between growing degree days and °Brix. A two phase linear model is used to describe the change in red-free glycosyl-glucose (G-G).
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Koehn, John Desmond. "The ecology and conservation management of Murray Cod Macullochella peelii peelii." 2006. http://repository.unimelb.edu.au/10187/2864.
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Murray cod Maccullochella peelii peelii is an iconic freshwater angling species that has suffered declines in abundance and is now listed as a nationally vulnerable species. Despite recognition of the need for biological knowledge to provide future management directions, little is known of its ecology. This thesis examines that ecology to provide new knowledge and recommendations for improved conservation management. (For complete abstract open document)
Books on the topic "Salinization New South Wales Murray-Darling Basin"
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Swan, Michael. Frogs and Reptiles of the Murray–Darling Basin. CSIRO Publishing, 2020. http://dx.doi.org/10.1071/9781486311330.
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The Murray–Darling Basin spans more than 1 million square kilometres across the lower third of Queensland, most of New South Wales, the Australian Capital Territory, northern Victoria and the south-eastern corner of South Australia. Wildlife habitats range from the floodplains of the Basin to alpine areas, making the region of special ecological and environmental interest.
This book is the first comprehensive guide to the 310 species of frogs and reptiles living in the Murray–Darling Basin. An overview of each of the 22 catchment areas introduces the unique and varied climates, topography, vegetation and fauna. Comprehensive species accounts include diagnostic features, conservation ratings, photographs and distribution maps for all frogs, freshwater turtles, lizards and snakes recorded in this important region.
Book chapters on the topic "Salinization New South Wales Murray-Darling Basin"
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Guillaume, Joseph H. A., Alvar Closas, and Andrew McCallum. "Groundwater allocation in New South Wales, Australia." In Water Resources Allocation and Agriculture, 143–58. IWA Publishing, 2022. http://dx.doi.org/10.2166/9781789062786_0143.
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Abstract New South Wales has more than 100 years of history of water licensing and allocation. This chapter reflects on the approach to water allocation in the current groundwater sharing plans, including general principles and underlying reasoning for application elsewhere. Focus is on groundwater-specific issues for transition from open to regulated access, while embedded within broader water regulations and connections to surface water management. Water allocation is built around water sharing plans that determine extraction limits, with community consultation. Water rights are differentiated in terms of water sources and priority, separated from land ownership, and from time-varying water allocations, subject to available water determinations. Both water entitlements and allocations can be traded, with rules governing impact of trade. Water sharing plans are state-level instruments explicitly connected in applicable regions to the Commonwealth-level Murray-Darling Basin Plan and associated extraction limits. Compliance is based firstly on metering of water extractions. Future prospects are also discussed.