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Статті в журналах з теми "Water-supply Victoria Ballarat Region"
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Zhang, Shihao, Junhe Tan, Junhang Liu, Jiaqi Wang, and Ata Tara. "Suitability Prediction and Enhancement of Future Water Supply Systems in Barwon Region in Victoria, Australia." Land 11, no. 5 (April 23, 2022): 621. http://dx.doi.org/10.3390/land11050621.
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Intensive agricultural production accompanied by the climate change impacts in post-Colonial rural landscapes have continuously increased the demand for water resources and coastal areas, showing an unprecedented water supply crisis. By taking extreme weather conditions and rainfall events for future trends, a resilient water storage facility for the landscape requires the collaborative approach of natural systems and simulation modelling techniques to develop sustainable future scenarios. In this study, an ecological suitability model is used to identify potential sites for the construction of multi-purpose dams. As part of the model structure, multi factors are classified using the patterns of changing landscapes, and then weighted overlay analysis is conducted on a Geographic Information System (GIS) platform. Compared to previous studies, this paper derives its principal impact parameters and projections based on historical land cover information. The suitability maps that are generated visually guide the geographical location of the multi-purpose dams and indicate the areas from highly suitable to least suitable, clarifying the possibility of building blue infrastructure alongside the waterways in west-central Barwon. The workflow proposes a resilient water system based on existing land characteristics and measures that future water storage capacity will be a valid increase of approximately 1.5 times. This strategy alleviates water scarcity during the dry season to benefit traditional agricultural activities. Digital calculations are utilized to demonstrate the feasibility of the experimental results, providing a methodology for regulating the distribution and supply of river flows throughout the year while retaining runoff in a hierarchical pattern at precipitation periods.
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Graymore, Michelle, Anne Wallis, and Kevin O'Toole. "Understanding drivers and barriers: the key to water use behaviour change." Water Supply 10, no. 5 (December 1, 2010): 679–88. http://dx.doi.org/10.2166/ws.2010.125.
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In southwest Victoria, like many other regions in Australia, drought, climate change and population growth have exposed gaps in water supply. To develop effective demand management strategies for rural and regional areas, this paper investigates the drivers and barriers to water saving in southwest Victoria. Although the majority of people felt water saving was important, the drivers for water saving differed between different groups. Residential users were saving water for altruistic reasons, while for farmers the drivers were farm viability and productivity. Although the barriers differed between property types, common barriers included lack of understanding of the impact their water use has on supplies, lack of knowledge, the pricing system and distrust of the water authority. The findings provide information for effective demand management strategies for the region.
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Yilmaz, Abdullah Gokhan, Serter Atabay, Kimia Haji Amou Assar, and Monzur Alam Imteaz. "Climate Change Impacts on Inflows into Lake Eppalock Reservoir from Upper Campaspe Catchment." Hydrology 8, no. 3 (July 24, 2021): 108. http://dx.doi.org/10.3390/hydrology8030108.
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Climate change has significant effects on societies and ecosystems. Due to the strong link between climate and the hydrological cycle, water resources is one of the most affected fields by climate change. It is of great importance to investigate climate change effects on streamflows by producing future streamflow projections under different scenarios to create adaptation measures and mitigate potential impacts of climate change. The Upper Campaspe Catchment (UCC), located at North Central Victoria in Australia, is a significant catchment as it provides a large portion of total inflow to the Lake Eppalock Reservoir, which supplies irrigation to the Campaspe Irrigation district and urban water to Bendigo, Heathcote, and Ballarat cities. In this study, climate change effects on monthly streamflows in the UCC was investigated using high resolution future climate data from CSIRO and MIROC climate models in calibrated IHACRES hydrological model. The IHACRES model was found to be very successful to simulate monthly streamflow in UCC. Remarkable streamflow reductions were projected based on the climate input from both models (CSIRO and MIROC). According to the most optimistic scenario (with the highest projected streamflows) by the MIROC-RCP4.5 model in near future (2035–2064), the Upper Campaspe River will completely dry out from January to May. The worst scenario (with the lowest streamflow projection) by the CSIRO-RCP8.5 model in the far future (2075–2104) showed that streamflows will be produced only for three months (July, August, and September) throughout the year. Findings from this study indicated that climate change will have significant adverse impacts on reservoir inflow, operation, water supply, and allocation in the study area.
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Campbell, Lachlan. "Wimmera River (Victoria, Australia) – Increasing Use of a Diminishing Resource." Water Science and Technology 21, no. 2 (February 1, 1989): 245–49. http://dx.doi.org/10.2166/wst.1989.0058.
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The Wimmera River is central western Victoria's most important river, rising in the Grampians National Park, filling storages that supply the major water supply to the vast Wimmera and Mallee regions. It passes through the Little Desert National Park, an area of significant scenic, recreation, historical and conservation value and terminates in Victoria's largest inland freshwater lakes (Lakes Hindmarsh and Albacutya). The brittleness of the whole closed Wimmera River system, and the over committal of the water resources was brought to the public's attention when appeals were lodged against the proposal to licence a discharge of high standard secondary effluent from an extended aeration oxidation ditch and lagoon treatment facility at Horsham. Residents, user and community groups, Municipal Councils and Government Departments, aware of the deterioration of the Wimmera River had somewhere to focus their attention. Victoria's and possibly Australia's longest environmental appeal, lasting twenty-five days, and a State Environment Protection Policy, determined that all major point sources of nutrients should be removed from the River. More resources for clearing of unwanted emergent weeds, more facilities for protection of Crown Land and catchments generally, and the implementation of environmental summer flows as piping of the Wimmera-Mallee Stock and Domestic System proceeds, are all required. A River Management Board with strength, wealth, good public relations and a dedication to the task could make the Wimmera River an example for all Australia and a tourist attraction of immense value to the region.
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Stevens, Craig, Won Sang Lee, Giannetta Fusco, Sukyoung Yun, Brett Grant, Natalie Robinson, and Chung Yeon Hwang. "The influence of the Drygalski Ice Tongue on the local ocean." Annals of Glaciology 58, no. 74 (April 2017): 51–59. http://dx.doi.org/10.1017/aog.2017.4.
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ABSTRACT The Drygalski Ice Tongue presents an ~80 km long floating obstacle to alongshore flows in the Victoria Land coastal ocean region of the Western Ross Sea. Here we use oceanographic data from near to the tongue to explore the interplay between the floating glacier and the local currents and stratification. A vessel-based circuit of the glacier, recording ocean temperature and salinity profiles, reveals the southwest corner to be the coldest and most complex in terms of vertical structure. The southwest corner structure beneath the surface warm, salty layer sustains a block of very cold water extending to 200 m depth. In this same location there was a distinct layer at 370 m not seen anywhere else of water at ~−1.93°C. The new observations broadly, but not directly, support the presence of a coherent Victoria Land Coastal Current. The data suggest the northward moving coastal current turns against the Coriolis force and works its way anticlockwise around the glacier, but with leakage beneath the glacier through the highly ‘rippled’ underside, resulting in a spatially heterogeneous supply to the Terra Nova Bay Polynya region – an important location for the formation of high-salinity shelf water.
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McLean, R., and P. McManamon. "An innovative approach to small town water quality improvements." Water Supply 3, no. 3 (June 1, 2003): 209–14. http://dx.doi.org/10.2166/ws.2003.0028.
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Innovative solutions are required to meet the conflicting criteria of service level, community need, community desire, cost and risk to the supply authority in the delivery of water quality improvements to small regional communities. Grampians Region Water Authority services 74 towns in North-Western Victoria, an area of generally low rainfall, sparse settlement and few natural waterways. Town populations range from 10 to 13,000, with 56 towns having less than 500 people. A Water Quality Improvement Plan was recently developed by Grampians Water to address these natural difficulties. The plan examined a broad range of alternatives beyond the single-pipe reticulated supply system, including dual-pipe reticulation, rainwater sources and household water treatment systems for achieving target quality levels. The key findings were:• regional treatment plants are not economical if towns are more than 25 km apart• salinity is a major influence on strategy• for low salinity supplies, conventional treatment is most economical• for marginal salinity supplies, a two stage process involving conventional treatment and desalination is appropriate• desalination provides a total solution for high salinity groundwater supplies• drinking quality can only be economically achieved in very small towns by using household treatment of rainwater in a dual supply system. The resultant strategies and implementation issues outlined reveal some significant variations to the conventional approach.
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O'Leary, G. J., and D. J. Connor. "A simulation study of wheat crop response to water supply, nitrogen nutrition, stubble retention, and tillage." Australian Journal of Agricultural Research 49, no. 1 (1998): 11. http://dx.doi.org/10.1071/a97020.
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A series of simulations was made with a fallow{wheat crop simulation model to examine the effects of stubble retention and tillage on yield for 2 semi-arid environments in north-western Victoria over a 100-200-year period. The fallow treatments comprised 4 combinations of stubble management and tillage in 18-month-long fallows of a fallow{wheat rotation. The 2 sites are representative of the major soil types of the region: a chromic vertisol at Dooen and a calcic xerosol at Walpeup. Stubble retention had the greatest effect on yield, providing a median increase of 0·8 and 0·6 t/ha at Dooen and Walpeup, respectively. Zero tillage had an importantbut small advantage in the presence of stubble at Dooen (0·2 t/ha) and no significant advantage under any system at Walpeup. Yield response was primarily caused through increased fallow-stored water of approximately 89 and 25 mm at Dooen and Walpeup, respectively. The accumulation of soil mineral nitrogen (SMN) at sowing in fallows did not show the same treatment differences as with water or yield. There was a significant interaction between soil type and fallow method. At Dooen, stubble depressed SMN by about 24 kg N/ha (163{185 kg N/ha) below those without stubble (188-207 kg N/ha). Tillage reduced SMN with or without stubble by about 20 kg N/ha. At Walpeup, on the other hand, the highest SMN was associated with tillage and was enhanced by stubble, but the differences were small (<10 kg N/ha). Nitrogen fertiliser produced a small increase in yield (median 0·2 t/ha) at Dooen, increasing to about 0·4 t/ha in wetter years when stubble was retained and fallows were maintained with zero tillage. Over a 100-year period, nitrogen fertiliser reduced the rate of yield decline. The use of nitrogen fertiliser with stubble retention and zero tillage offers an opportunity for arresting declining yield and quality in intensive cropping systems in the Wimmera region of Victoria.
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Rogers, M. E., A. R. Lawson, S. Chandra, and K. B. Kelly. "Limited application of irrigation water does not affect the nutritive characteristics of lucerne." Animal Production Science 54, no. 10 (2014): 1635. http://dx.doi.org/10.1071/an14195.
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Lucerne (Medicago sativa) has not been a significant part of the feedbase of the Murray-Dairy Region of Australia. However, under future climate regimes, which are indicating an overall decline in rainfall as well as water available for irrigation of pastures, lucerne is emerging as a potential forage species because of its adaptability, productivity and resilience. A large-scale field experiment was conducted at Tatura, Victoria, Australia, over four years to determine the dry matter (DM) production and nutritive characteristics of lucerne under a range of limiting and non-limiting irrigation management practices. Nine irrigation treatments were imposed that ranged from full irrigation to no irrigation in either a single, or over consecutive, irrigation seasons. Plots were harvested using plant-based criteria over the irrigation season and DM production and nutritive characteristics were determined. DM production generally increased as the total water supply (irrigation plus rainfall plus changes in soil water) increased, with the fully irrigated treatments producing significantly more DM than the treatments where the irrigation water had been restricted. Mean annual DM digestibility concentration was 66% of DM and was not affected by treatment. Similarly, mean crude protein concentration, which was 22% of DM, was also not affected by treatment. There was no consistent effect of restricted irrigation on the neutral detergent fibre concentration of the lucerne plants. These results suggest that in seasons where irrigation is restricted because of limited water supply, the reduction in lucerne productivity is not associated with a penalty in forage nutritive characteristics, with lucerne able to provide sufficient nutrients to form a large proportion of the total diet for a high-producing dairy cow.
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Rogers, M. E., A. R. Lawson, and K. B. Kelly. "Lucerne yield, water productivity and persistence under variable and restricted irrigation strategies." Crop and Pasture Science 67, no. 5 (2016): 563. http://dx.doi.org/10.1071/cp15159.
Повний текст джерелаАнотація:
Lucerne (Medicago sativa L.) has the potential to be grown widely under water-limiting conditions in the dairy region of northern Victoria and southern New South Wales, Australia, possibly because of its greater water productivity and because irrigation management of lucerne can be more flexible compared with other forage species. A large-scale field experiment was conducted at Tatura in northern Victoria, over 5 years to determine the effects of limiting (deficit) and non-limiting irrigation management on the dry matter (DM) production, water productivity (irrigation and total water productivity) and stand density (or persistence) of lucerne. Nine irrigation treatments were imposed that included full irrigation, partial irrigation and no irrigation in either a single, or over consecutive, irrigation seasons. In the fifth year of the experiment, all plots received the full irrigation treatment to examine plant recovery from the previous irrigation treatments. In any one year, there was a linear relationship between DM production and total water supply (irrigation plus rainfall plus changes in soil water) such that DM production decreased as the total water supply – due to deficit irrigation – decreased. Over the 5 years, annual DM production ranged from 1.4 to 17.7 t DM ha–1 with the highest production occurring in plots that received full irrigation. Irrigation water productivity was inversely related to the amount of water used and was higher in the treatments that had only been partially irrigated for that year compared with the treatments that had been fully watered for that year. Total water productivity values were significantly lower only in the treatments that had not been irrigated for that year, and there was little difference between the treatments that were only partially watered during the year and the fully watered treatments (range 9.1–12.2 kg DM ha–1 mm–1 for Year 4). There was no significant reduction in plant density or plant persistence in those plots where deficit irrigation had been imposed. However, the high irrigation regime and poor drainage in the fully irrigated border-check plots significantly reduced plant density and allowed weed infestation in the fifth year of the experiment. These results suggest that, although lucerne DM production is directly related to total water use and may be significantly reduced in the irrigation regions of south-eastern Australia in seasons when water is restricted, the lucerne stand is able to fully recover once a full irrigation regime is resumed. This makes lucerne an ideal forage species for situations when water is limiting.
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Chapman, D. F., B. R. Cullen, I. R. Johnson, and D. Beca. "Interannual variation in pasture growth rate in Australian and New Zealand dairy regions and its consequences for system management." Animal Production Science 49, no. 12 (2009): 1071. http://dx.doi.org/10.1071/an09054.
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The profitability of dairy farms in Australia and New Zealand is closely related to the amount of pasture dry matter consumed per hectare per year. There is variability in the pasture growth curve within years (seasonal variation) and between years (interannual variation) in all dairy regions in both countries. Therefore, the biological efficiency of production systems depends on the accuracy and timeliness of the many strategic and tactical decisions that influence the balance between feed supply and demand over an annual cycle. In the case of interannual variation, decisions are made with only limited quantitative information on the range of possible pasture growth outcomes. To address this limitation, we used the biophysical simulation model ‘DairyMod’ to estimate mean monthly herbage accumulation rates of annual or perennial ryegrass-based pastures in 100 years (1907–2006) for five Australian sites (Kyabram in northern Victoria, Terang in south-west Victoria, Ellinbank in Gippsland, Elliott in north-west Tasmania and Vasse in south-west Western Australia) and in 35 years (1972–2006) for three sites in New Zealand (Hamilton in the Waikato, Palmerston North in the Manawatu and Winchmore in Canterbury). The aim was to evaluate whether or not a probabilistic approach to the analysis of pasture growth could provide useful information to support decision making. For the one site where annual ryegrass was simulated, Vasse, the difference between the 25th and 75th percentile years was 20 kg DM/ha.day or less in all months when pasture growth occurred. Irrigation at Kyabram and Winchmore also resulted in a narrow range of growth rates in most months. For non-irrigated sites, the 25th–75th percentile range was narrow (10–15 kg DM/ha.day) from May or June through to September or October, because plant available soil water was adequate to support perennial ryegrass growth, and the main source of interannual variability was variation in temperature. Outside of these months, however, variability in growth was large. There was a positive relationship between total annual herbage accumulation rate and mean stocking for four southern Australian regions (northern Victoria, south-west Victoria, Gippsland and Tasmania), but there was evidence of a negative relationship between the co-efficient of variation in pasture growth and stocking rate. The latter suggests that farmers do account for risk in pasture supply in their stocking rate decisions. However, for the one New Zealand region included in this analysis, Waikato, stocking rate was much higher than would be expected based on the variability in pasture growth, indicating that farmers in this region have well defined decision rules for coping with feed deficits or surpluses. Model predictions such as those presented here are one source of information that can support farm management decision making, but should always be coupled with published data, direct experience, and other relevant information to analyse risk for individual farm businesses.
Книги з теми "Water-supply Victoria Ballarat Region"
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Water for gold!: The fight to quench Central Victoria's goldfields. North Melbourne, Vic: Australian Scholarly Pub., 2009.
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Russell, Geoffrey Brain. Water for gold!: The fight to quench Central Victoria's goldfields. North Melbourne, Vic: Australian Scholarly Pub., 2009.
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Otieno, Pireh. Stakeholder engagement, and partnership building in the Lake Victoria Region Water and Sanitation Initiative: How to set up and manage a town-level multistakeholder forum : a step-by-step guide. Nairobi, Kenya: Lake Victoria Region Water and Sanitation Initiative, United Nations Human Settlements Programme, 2008.
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Goodwin, Robert. Meeting of East African Ministers of Water and Development Partners on Lake Victoria Region Water and Sanitation Initiative: Nairobi, Kenya, 5th September, 2008 : meeting the water and sanitation MDGs in the Lake Victoria Basin. Nairobi: UN Habitat, 2009.
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Meeting of East African Ministers of Water and Development Partners on Lake Victoria Region Water and Sanitation Initiative (2nd 2009 Entebbe, Uganda). Second Meeting of East African Community Ministers of Water, Ministers of Finance, and Development Partners of the Lake Victoria Water and Sanitation Initiave: Entebbe, Uganda 23rd April 2009 : scaling up the Lake Victoria Water and Sanitation Initiative. Edited by Adom Daniel, Osanjo Tom, Perkins Julie, Malebo Anne, and Ohayo James. Nairobi: UN-HABITAT, 2010.
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Lake Victoria Region Water and Sanitation Initiative: Supporting secondary urban centres in the Lake Victoria region to achieve the millennium development goals. Nairobi: United Nations Settlements Programme, 2004.
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Twesigye, Charles K. "Application of Remote Sensing Technologies and Geographical Information Systems in Monitoring Environmental Degradation in the Lake Victoria Watershed, East Africa." In Green Technologies, 653–77. IGI Global, 2011. http://dx.doi.org/10.4018/978-1-60960-472-1.ch405.
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Accurate information on the state of water resources in the Lake Victoria watershed is crucial for planning and sustainable development in the East African region. This region largely depends on its natural resource-base for economic development, and therefore comprehensive information on its resources dynamics is key in implementing poverty alleviation strategies, improving human condition and preserving the biological systems upon which the region‘s population depends. This chapter focuses on key issues, which have emerged as a result of population growth and development in the region. The research on which this chapter is based aims to address the concerns on land use and settlement trends in the study sites, vulnerability of the communities to water stress and sustainability of the livelihood systems in the watersheds of Nzoia River Basin (Kenya), Nakivubo Wetland (Uganda) and Simiyu River Basin (Tanzania). These communities engage in unique land use practices that have intensified environmental degradation in recent times. The research adopts a multi-disciplinary approach in bringing to the fore the various processes affecting watershed resources use and management in the selected wetlands of the Lake Victoria Drainage Basin (LVDB). The data presented covers trends in vegetation cover loss, pesticide pollution and general water quality parameters. Geographic information systems (GIS) and remote sensing techniques were employed to unveil land use patterns that have resulted in the degradation of the watershed. Wetland degradation levels have been characterized using secondary data generated by analytical techniques. New emerging challenges of environmental degradation caused by industrial, domestic and agricultural activities are presented and discussed. The potential of the new science of hydroinformatics in integrated watershed management through mathematical modeling, geographic information systems analysis and water supply management is highlighted.
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White, Robert E. "Putting it All Together." In Understanding Vineyard Soils. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780199342068.003.0009.
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In reality, there can be no generic definition of an “ideal soil” because a soil’s performance is influenced by the local climate, landscape characteristics, grape variety, and cultural practices and is judged in the context of a winegrower’s objectives for style of wine to be made, market potential, and profitability of the enterprise. This realization essentially acknowledges the long-established French concept of terroir: that the distinctiveness or typicity of wines produced in individual locations depends on a complex interaction of biophysical and human cultural factors, interpreted by many as meaning a wine’s sense of place. As discussed in “Soil Variability and the Concept of Terroir” in chapter 1, because of this interaction of factors that determine a particular terroir, it is not surprising that no specific relationships between one or more soil properties and wine typicity have been unequivocally demonstrated. While acknowledging this conclusion, it is still worthwhile to examine how variations in several single or combined soil properties can influence vine performance and fruit character. These properties are: • Soil depth • Soil structure and water supply • Soil strength • Soil chemistry and nutrient supply • Soil organisms Provided there are no subsoil constraints, the natural tendency of long-lived Vitis vinifera, on own roots or rootstocks, to root deeply and extensively gives it access to a potentially large store of water and nutrients. In sandy and gravely soils that are naturally low in nutrients, such as in the Médoc region of France, the Margaret River region in Western Australia, and the Wairau River plain, Marlborough region, New Zealand, the deeper the soil the better. A similar situation pertains on the deep sandy soils on granite in the Cauquenas region, Chile. However, such depth may be a disadvantage where soils are naturally fertile and rain is plentiful, as in parts of the Mornington Peninsula, King and Yarra Valley regions, Victoria, Australia, and the Willamette Valley region in Oregon (see figure 1.11, chapter 1), because vine growth is too vigorous and not in balance.