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Journal articles on the topic 'Yarra Valley'
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Fam, Dena, Cynthia Mitchell, Kumi Abeysuriya, and Toni Meek. "Facilitating organisational learning to support decision making and planning for sustainability in the water sector." Water Policy 15, no. 6 (September 7, 2013): 1094–108. http://dx.doi.org/10.2166/wp.2013.178.
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This paper investigates the process of organisational learning in decision making and planning for sustainability in the water sector. A Melbourne water utility (Yarra Valley Water) trialling sustainable systems of service provision utilised multi-stakeholder experiences to facilitate learning within the organisation. Diverse perspectives of the trial were sought through 50 interviews with staff managing/operating/maintaining the system and household residents using the system. Outcomes from interviews were shared with the project team in a social learning workshop and translated into recommendations for trialling innovation within the water utility and more broadly within the Australian water sector. The facilitated process of organisational learning highlighted the importance of cross-departmental communication and co-operation, reflective processes of management and the value of a ‘transdisciplinary’ approach to planning and implementing novel systems of service provision. The outcome was the development of new procedures to support integrated knowledge development in trialling innovation within Yarra Valley Water.
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Cooke, R., R. Wallis, F. Hogan, J. White, and A. Webster. "The diet of powerful owls (Ninox strenua) and prey availability in a continuum of habitats from disturbed urban fringe to protected forest environments in south-eastern Australia." Wildlife Research 33, no. 3 (2006): 199. http://dx.doi.org/10.1071/wr05058.
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This study investigates the diet of six breeding pairs of powerful owls in the Yarra Valley Corridor in Victoria, Australia, and compares prey consumption with prey availability. The six sites represent a continuum of habitats, ranging from urban Melbourne, through the urban fringe interface to a more forested landscape. We found that powerful owls in the Yarra Valley Corridor are reliant almost exclusively on arboreal marsupial prey as their preferred diet, with 99% of their overall diet comprising four arboreal marsupial species. These four species (the common ringtail possum, common brushtail possum, sugar glider and greater glider) were also the most abundant species observed while spotlighting; however, their abundance varied along the continuum. There was a strong positive relationship with the presence of these species in the diet and their site-specific availability, indicating that the powerful owl is a generalist hunter, preying on the most available prey at a given site and in a given season. This study suggests that food resources are high in these disturbed urban fringe sites and it is unlikely that food availability in urban environments will limit the potential survival of urban powerful owls.
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Lennon, Jane L. "A history of changing aesthetic values in the Yarra Valley landscape, Victoria." Geographical Research 55, no. 3 (October 13, 2015): 283–92. http://dx.doi.org/10.1111/1745-5871.12149.
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Kjellberg, S., A. Jayaratne, E. Cadan, N. Sukumaran, J. Vreeburg, and J. Verberk. "The resuspension potential method: Yarra Valley water's novel approach to routine mains cleaning." Water Supply 9, no. 5 (December 1, 2009): 549–56. http://dx.doi.org/10.2166/ws.2009.456.
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Routine cleaning of water mains is frequently employed by water utilities around the world as a means of managing common water quality issues. When employed correctly, water mains cleaning can be effective in removing loosely deposited sediments and bio-films that cause water discolouration, coliform regrowth and unpalatable tastes and odours. Despite its long history in the water industry, water supply practitioners continue to use highly subjective mechanisms to identify when, where and how much to spend on their mains cleaning programs. This paper discusses the benefits of using the Resuspension Potential Method, an objective means of planning and implementing mains cleaning, to achieve an optimum outcome for both the water company and its customers. Since 2005, Yarra Valley Water has undertaken Resuspension Potential Method measurements in 13 of its water quality zones to gain a better understanding of sediment accumulation rate in the zones over time. Ultimately the information will be used for more effective planning and proactive implementation of the mains cleaning programme.
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Blackney, J. R., and P. W. Menkhorst. "Distribution of Subspecies of the Yellow-tufted Honeyeater in the Yarra Valley Region, Victoria." Emu - Austral Ornithology 93, no. 4 (December 1993): 209–13. http://dx.doi.org/10.1071/mu9930209.
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Jayaratne, Asoka. "Application of a risk management system to improve drinking water safety." Journal of Water and Health 6, no. 4 (March 1, 2008): 547–57. http://dx.doi.org/10.2166/wh.2008.061.
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The use of a comprehensive risk management framework is considered a very effective means of managing water quality risks. There are many risk-based systems available to water utilities such as ISO 9001 and Hazard Analysis and Critical Control Point (HACCP). In 2004, the World Health Organization's (WHO) Guidelines for Drinking Water Quality recommended the use of preventive risk management approaches to manage water quality risks. This paper describes the framework adopted by Yarra Valley Water for the development of its Drinking Water Quality Risk Management Plan incorporating HACCP and ISO 9001 systems and demonstrates benefits of Water Safety Plans such as HACCP.
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Sarker, R. C., and S. Gato-Trinidad. "Developing a demand model integrating end uses of water (DMEUW): structure and process of integration." Water Science and Technology 71, no. 4 (January 2, 2015): 529–37. http://dx.doi.org/10.2166/wst.2015.002.
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The process of developing an integrated water demand model integrating end uses of water has been presented. The model estimates and forecasts average daily water demand based on the end-use pattern and trend of residential water consumption, daily rainfall and temperature, water restrictions and water conservation programmes. The end-use model uses the latest end-use data set collected from Yarra Valley Water, Australia. A computer interface has also been developed using hypertext markup language and hypertext pre-processor. The developed model can be used by water authorities and water resource planners in forecasting water demand and by household owners in determining household water consumption.
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Longo, Rocco, Wes Pearson, Angela Merry, Mark Solomon, Luca Nicolotti, Hanna Westmore, Robert Dambergs, and Fiona Kerslake. "Preliminary Study of Australian Pinot Noir Wines by Colour and Volatile Analyses, and the Pivot© Profile Method Using Wine Professionals." Foods 9, no. 9 (August 19, 2020): 1142. http://dx.doi.org/10.3390/foods9091142.
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The aim of this preliminary study was to identify potential colour components, volatile and sensory attributes that could discriminate Pinot noir wines from five Australian winegrowing regions (Adelaide Hills, Yarra Valley, Mornington Peninsula, Northern and Southern Tasmania). The sensory analysis consisted of the Pivot© Profile method that was performed by wine professionals. A headspace solid-phase microextraction-gas chromatography-mass spectrometry method was used to quantify multiple volatile compounds, while the Modified Somers method was used for colour characterisation. Analysis of data suggested ethyl decanoate, ethyl 2-methylpropanoate, ethyl 2-methylbutanoate, in addition to decanoic acid as important contributors to the discrimination between regions. Similarly, wine hue, chemical age indices, total anthocyanin, and (%) non-bleachable pigment also discriminated wines between regions. The sensory analysis showed that wines from Mornington Peninsula were associated with the ‘red fruits’ aroma, ‘acidic’, and ‘astringency’ palate descriptors, while those from Adelaide Hills were associated with the ‘brown’ colour attribute. This study indicates regionality is a strong driver of aroma typicity of wine.
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Gato-Trinidad, Shirley, Niranjali Jayasuriya, and Peter Roberts. "Understanding urban residential end uses of water." Water Science and Technology 64, no. 1 (July 1, 2011): 36–42. http://dx.doi.org/10.2166/wst.2011.436.
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The ‘end use’ of water is a breakdown of the total household water usage such as water used for toilets, showers, washing machines, taps, lawn watering, etc. Understanding end uses of water will enable water planners, water authorities and household owners determine where water is used/wasted, how much and how often. This paper describes the end uses of water from a number of single-family homes in Greater Melbourne, Australia. The study involves the analysis of water consumption data recorded at 5-s intervals from logged households collected by Yarra Valley Water in Melbourne in 2004. The study determines how much water is used for outdoor and indoor purposes in a single-family home in Melbourne and compares the water usage during winter and summer. Hourly patterns of major end uses of water are also developed. The aim of this study is to improve the understanding of the end uses of water and to assist where to focus water conservation efforts that would be most effective financially and environmentally, and be acceptable to everyone.
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Quintal, Vanessa, Ben Thomas, Ian Phau, and Zorana Soldat. "Using push-pull winescape attributes to model Australian wine tourist segmentation." International Journal of Wine Business Research 29, no. 4 (November 20, 2017): 346–72. http://dx.doi.org/10.1108/ijwbr-01-2017-0007.
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Purpose The study aims to introduce a comprehensive segmentation instrument that incorporates the push–pull winescape attributes, providing a new perspective of the wine tourist profile and explaining their behavioural intentions in the Australian winescape. Design/methodology/approach A literature review, focus groups and expert panels generated an extensive list of push–pull winescape attributes. Pen-and-paper surveys conveniently sampled 739 wine tourists at three wineries across three wine regions in Australia. Adopting push–pull winescape attributes as the segmentation base, cluster analysis identified four segments, namely, inspireds, self-drivens, market-drivens and inerts, and their behavioural intentions were examined. Findings Inspireds demonstrate both self- and market-motivation. Self-drivens exhibit self-motivation but limited market-motivation, whereas Market-drivens characterise market-motivation but limited self-motivation. Inerts are limited in both market- and self-motivations. At the Swan Valley, all four segments were identified, with Inspireds being the most willing to revisit and recommend to others and Inerts, the least willing. At the Barossa Valley, only two segments emerged. Again, Inspireds and Inerts were the most and least willing to revisit and recommend to others respectively. Finally, at the Yarra Valley, three segments were identified. Market-drivens were most willing to revisit and recommend to others, followed by self-drivens and lastly, by inerts. Research limitations/implications A comprehensive push–pull winescape segmentation base of wine tourists is introduced, which provides a more sophisticated profile of wine tourist segments than otherwise would be attained with conventional measures. Practical implications New insights into who the wine tourist is and what it is they seek from the winescape are vital to smaller wine producers whose best access to the domestic retail and export markets is through direct selling at the cellar door. Originality/value The empirically tested 18-item push–pull winescape instrument presents a comprehensive segmentation approach, which profiles wine tourists and predicts their behavioural intentions based on an extensive investigation of push–pull winescape attributes.
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Souza Gonzaga, Lira, Dimitra L. Capone, Susan E. P. Bastian, Lukas Danner, and David W. Jeffery. "Using Content Analysis to Characterise the Sensory Typicity and Quality Judgements of Australian Cabernet Sauvignon Wines." Foods 8, no. 12 (December 17, 2019): 691. http://dx.doi.org/10.3390/foods8120691.
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Understanding the sensory attributes that explain the typicity of Australian Cabernet Sauvignon wines is essential for increasing value and growth of Australia’s reputation as a fine wine producer. Content analysis of 2598 web-based wine reviews from well-known wine writers, including tasting notes and scores, was used to gather information about the regional profiles of Australian Cabernet Sauvignon wines and to create selection criteria for further wine studies. In addition, a wine expert panel evaluated 84 commercial Cabernet Sauvignon wines from Coonawarra, Margaret River, Yarra Valley and Bordeaux, using freely chosen descriptions and overall quality scores. Using content analysis software, a sensory lexicon of descriptor categories was built and frequencies of each category for each region were computed. Distinction between the sensory profiles of the regions was achieved by correspondence analysis (CA) using online review and expert panellist data. Wine quality scores obtained from reviews and experts were converted into Australian wine show medal categories. CA of assigned medal and descriptor frequencies revealed the sensory attributes that appeared to drive medal-winning wines. Multiple factor analysis of frequencies from the reviews and expert panellists indicated agreement about descriptors that were associated with wines of low and high quality, with greater alignment at the lower end of the wine quality assessment scale.
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Williams, P., K. M. Green, and B. Swanson. "A cold treatment for postharvest control of western flower thrips on strawberry runners." Australian Journal of Experimental Agriculture 45, no. 12 (2005): 1649. http://dx.doi.org/10.1071/ea03191.
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In 1998–99, outbreaks of Frankliniella occidentalis (Pergrande), western flower thrips (WFT), caused extensive damage to strawberry crops in the Yarra Valley, Victoria. These crops were within 30 km of Toolangi where over 80% of certified strawberry runners for Australia are produced. Commercial growers store runners for various periods of time at temperatures as low as –2°C. Cold temperature disinfestation was evaluated as a potential strategy in a contingency plan to prevent the spread of WFT on strawberry runners. Western flower thrips at various life stages on gerbera flowers (on which they were reared), were placed in small bags, made from the plastic liners used in commercial strawberry runner cartons, together with strawberry runners and exposed to –2°C for periods of 1, 2, 4, or 8 weeks. All WFT died within 4 weeks. Additional experiments were conducted in which WFT, in bags with runners or on gerbera leaf disks in petri dishes, were exposed to –2°C for 3 weeks. Only a few WFT survived these treatments; however, they were moribund. When they were assessed 2 days after completion of the exposure period, all WFT were dead. It was concluded that strawberry runners carrying WFT can be disinfested by exposing WFT to –2°C for 4 weeks and that this should be achievable under commercial conditions.
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Magrath, Michael J. L. "Breeding ecology of the fairy martin." Australian Journal of Zoology 47, no. 5 (1999): 463. http://dx.doi.org/10.1071/zo98041.
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The breeding biology of the fairy martin, Hirundo ariel, was studied over three years (1992–95) in the Yarra Valley, Victoria. Adult males and females in this population were morphologically similar, though only females acquired a brood patch during the breeding season. Colonies ranged in size from 8 to 29 nests. Birds arrived in the study area in September and usually commenced laying in October, though nesting activities were generally asynchronous both between and within colonies. Most colonies contained active nests until February. At least 16% of adults and 5% of fledglings, on average, returned to the study area in the following year. Returning adults generally nested at the same colony site as the previous year, while most first-year birds nested at sites other than their natal colony. Adult males were more likely to return than adult females. Clutch size ranged from 2 to 5, with a mean of 3.5, and declined over the season. The incubation period varied from 12 to 18 days with a mean of 13.7. A mean of 1.8 chicks fledged per completed clutch, while 60% of clutches produced at least one chick. The period from hatching to fledging varied from 17 to 32 days, with a mean of 22.1, and increased with brood size. Fledging success was highest during the middle of the breeding season. Adverse weather conditions, resulting in the abandonment of clutch and brood, were the most common cause of nest failure, and on several occasions also resulted in adult mortality. Almost half the breeding females produced at least two clutches in the one season. Pairs produced from 0 to 8 fledglings per season, with those that commenced nesting earlier in the season having higher annual productivity. These results are discussed in relation to the breeding ecology of other members of the Hirundinidae.
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Schwab, Jacob D., Kimberly A. Williams, and Jason J. Griffin. "Asexual Propagation by Stem Cuttings of Half-high and Low-bush Blueberries in Soilless Substrates." Journal of Environmental Horticulture 39, no. 2 (June 1, 2021): 47–52. http://dx.doi.org/10.24266/0738-2898-39.2.47.
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Abstract Two experiments evaluated rooting of blueberry in substrates for use in soilless production systems. Apical and basal semi-hardwood stem cuttings of Vaccinium corymbosum x angustifolium ‘Northland' were rooted in rockwool cubes, shredded rockwool, or 3 perlite:1 sphagnum peat moss (v/v). Cuttings were treated with 0.1% indolebutyric acid (IBA) in 1:1 95% ethyl alcohol: water, 0.1% potassium salt of indolebutyric acid (K-IBA), 1:1 95% ethyl alcohol: water, or water. In Expt. 2, basal stem cuttings of ‘Northland' and V. angustifolium ‘Brunswick' were rooted in the same substrates with the addition of coco coir, treated with 1,000 ppm K-IBA, then fertilized weekly (after rooting began) with water, 75 ppm N from 16-4-17 fertilizer or 4-18-38 and Ca(NO3)2 plus MgSO4 fertilizer, all adjusted to pH 4.0. Rooting percentages were calculated, and rooting quality was assessed using a 6-point visual scale. ‘Northland' roots well (>80%) in peat:perlite and coco coir substrates and acceptably in two rockwool substrates (∼50%). ‘Brunswick' rooted acceptably in peat:perlite and coco coir (27% and 41%, respectively), and very poorly in two rockwool substrates (<2%). Rooting of ‘Northland' was not improved with application of 0.1% auxin. Apical cuttings of ‘Northland' had a higher rooting success than basal stem cuttings. Weekly fertilization did not improve root ratings, and had minimal effect on rooting success. Index words: adventitious rooting, auxin, coco coir, hydroponics, indolebutyric acid, rockwool, Vaccinium. Species used: ‘Northland' half-highbush blueberry, Vaccinium corymbosum L. X angustifolium Aiton, ‘Brunswick' low-bush blueberry, V. angustifolium Aiton. Chemicals used: auxin, potassium salt indolebutyric acid, K-IBA; Sigma-Aldrich, St. Louis, MO, USA, auxin, indolebutyric acid, IBA; Sigma-Aldrich, St. Louis, MO, USA, Oasis® 16-4-17 fertilizer, OASIS® Grower Solutions, Kent, OH, USA, ChemGro 4-18-38 fertilizer, ChemGro Hydro-Gardens, Colorado Springs, CO, USA, Ca(NO3)2, Yara North America, Tampa, FL, USA, and MgSO4, PQ Corp., Valley Forge, PA, USA.
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SILVA, ELDIR BANDEIRA DA, JOSÉ RIBEIRO DE ARAÚJO NETO, HELBA ARAÚJO DE QUEIROZ PALÁCIO, EUNICE MAIA DE ANDRADE, and YARA RODRIGUES ARAÚJO. "USO DA TERRA E INFLUÊNCIA NO ÍNDICE DE QUALIDADE DE ÁGUA: O CASO DO VALE DO RIO TRUSSU." IRRIGA 23, no. 2 (October 9, 2018): 334–58. http://dx.doi.org/10.15809/irriga.2018v23n2p334-358.
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USO DA TERRA E INFLUÊNCIA NO ÍNDICE DE QUALIDADE DE ÁGUA: O CASO DO VALE DO RIO TRUSSU
ELDIR BANDEIRA DA SILVA1; JOSÉ RIBEIRO DE ARAÚJO NETO2; HELBA ARAÚJO DE QUEIROZ PALÁCIO2; EUNICE MAIA DE ANDRADE1 E YARA RODRIGUES ARAÚJO2
1 Departamento de Engenharia Agrícola, Universidade Federal do Ceará-UFC, Campus do PICI, Bloco 804, Fortaleza-CE, Brasil. E-mail: eldir_2005@hotmail.com; eandrade.ufc@gmail.com.
2 Instituto Federal de Educação, Ciência e Tecnologia do Ceará-IFCE, Campus Iguatu, rodovia Iguatu-Várzea Alegre, Km 05, s/n, Iguatu-CE, Brasil. E-mail: juniorifcelabas@gmail.com; helbaraujo23@yahoo.com.br; yaraaraujo20@hotmail.com.
1 RESUMO
Com o objetivo de avaliar a influência do uso e ocupação da terra no índice de qualidade de água (IQA) nos corpos hídricos superficiais e subterrâneas no vale perenizado do rio Trussu, Ceará, Brasil, investigou-se dados de qualidade de água em dois períodos distintos. O primeiro foi de set/2002 a fev/2004 e o segundo de abr/2013 a jul/2015. Foram realizadas 22 coletas de água em 9 estações amostrais, 5 superficiais e 4 subterrâneas. Foram consideradas as mesmas estações nos dois períodos, monitorando-se 6 atributos de qualidade de água, totalizando 2376 análises. A avaliação da qualidade das águas foi relizada com o emprego do IQA e diagrama de caixa. As mudanças no uso e ocupação da terra foram nítidas, passando a caatinga densa de 38,7% de ocupação da área de estudo em 2003 para 11,2% em 2013. Não foi verificada diferença estatística (P<0,05) da qualidade das águas superficiais e subterrâneas no tempo. Porém, as águas subterrâneas diferiram estatisticamente entre os pontos. As águas superficiais foram classificadas como boas segundo o IQA, já as águas subterrâneas, observando o mesmo índice, como regulares e ruins. Esses resultados evidenciam o crescimento das práticas agrícolas na região, com avanço significativo da área antropizada sobre os recursos naturais.
Palavras-chave: cobertura do solo, águas superficiais e subterrâneas, geoprocessamento.
SILVA, E. B. DA; ARAÚJO NETO, J. R. DE; PALÁCIO, H. A. DE Q.; ANDRADE, E. M. DE E ARAÚJO, Y. R.
LAND USE AND INFLUENCE ON THE WATER QUALITY INDEX: THE CASE OF TRUSSU RIVER VALLEY
2 ABSTRACT
In order to evaluate the influence of land use and occupation on surface and groundwater levels in Trussu river perennial valley, Ceará, Brazil, we aimed at investigating data of the water quality in two distinct years. The first one was from Sep / 2002 to Feb / 2004 and the second from Apr/2013 to Jul/2015. Twenty-two water samples were collected in 9 sampling stations, 5 from surface and 4 from underground. The same stations were considered in the two periods, monitoring 6 attributes of water quality, totaling 2376 analyzes. The water quality assessment was performed using the water quality index (IQA, in Portuguese) and cash flow diagram. The changes in land use and occupation were sharp, with the dense tropical dry forests (Caatinga) moving from 38.7% occupancy of the study area in 2003 to 11.2% in 2013. There was no significant difference (P <0.05) in surface and groundwater quality over time. However, groundwater differed statistically in the two points. The IQA of surface waters was classified as good, and of groundwater as regular and bad. These results show the growth of agricultural practices in the region, with significant advance of the anthropized area on natural resources.
Keywords: groundcovers, surface water and groundwater, geoprocessing.
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"Melbourne Water Corporation and Yarra Valley Water Corporation v Caligiuri." Victorian Reports 60 VR (2020): 462–85. http://dx.doi.org/10.25291/vr/60-vr-462.
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Wightwick, Adam M., George Croatto, Suzanne M. Reichman, Neal W. Menzies, Vincent Pettigrove, and Graeme Allinson. "Horticultural Use of Copper-Based Fungicides Has Not Increased Copper Concentrations in Sediments in the Mid- and Upper Yarra Valley." Water, Air, & Soil Pollution 224, no. 12 (November 15, 2013). http://dx.doi.org/10.1007/s11270-013-1701-3.
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