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Journal articles on the topic 'Salinity control – Western Australia'

Author: Grafiati

Published: 4 June 2021

Last updated: 4 February 2022

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1

Mcfarlane, DJ, and RJ George. "Factors affecting dryland salinity in two wheat belt catchments in Western Australia." Soil Research 30, no. 1 (1992): 85. http://dx.doi.org/10.1071/sr9920085.

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We investigated why the Wallatin Creek Catchment in the Western Australian wheatbelt had an appreciable area of secondary salinity whereas the adjoining North Baandee Catchment had almost none. The Wallatin Creek Catchment, which is long and narrow, had a shallow regolith over granite bedrock. Although this catchment had less salt stored in the regolith than the wider North Baandee Catchment, the groundwaters came close to the ground surface because the regolith was thin and the valley cross-section narrow. Management practices which increase recharge (e.g. using level banks to control runoff)

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2

Gomboso, J., and F. Ghassemi. "Groundwater modelling and optimal salinity control in the North Stirling Land Conservation District, Western Australia." Mathematics and Computers in Simulation 33, no. 5-6 (April 1992): 609–14. http://dx.doi.org/10.1016/0378-4754(92)90159-e.

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3

Schofield, NJ, and MA Bari. "Valley reforestation to lower saline groundwater tables - Results from Stene Farm, Western-Australia." Soil Research 29, no. 5 (1991): 635. http://dx.doi.org/10.1071/sr9910635.

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Dense planting of selected trees in salt-affected valley floors and non-saline adjacent slopes has been evaluated as one strategy for controlling rising saline groundwater under agriculture. Of the 127 ha experimental catchment, 44% had been cleared of native forest in the 1950s. Valley reforestation covering 35% of the cleared area took place in 1979, by which time a groundwater of 5300 mg L-1 TSS had risen to within 0.5 m of the soil surface. The eucalypt reforestation was successful in lowering the groundwater table by 1.5 m by 1989, whilst groundwater levels under nearby pasture had risen

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Ferdowsian, Ruhi, Arjen Ryder, Richard George, Geoff Bee, and Rob Smart. "Groundwater level reductions under lucerne depend on the landform and groundwater flow systems (local or intermediate)." Soil Research 40, no. 3 (2002): 381. http://dx.doi.org/10.1071/sr01014.

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By 1994, an estimated 1.8 million hectares of cleared land in Western Australia was affected by secondary dryland salinity to some extent. The area affected is likely to double in the next 20 years. The cause of this salinity is excessive recharge under traditional agriculture, leading to rising groundwater levels. To effectively reduce land and water salinity a deep-rooted perennial is needed to mimic the temporal and spatial distribution of leaf area that existed prior to clearing. Previous studies have shown lucerne lowers groundwater levels in areas with favourable conditions. We present d

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Byrne, M., and L. Broadhurst. "Genetic diversity and the utilisation of Acacia species complexes in agroforestry in Western Australia." Australian Systematic Botany 16, no. 1 (2003): 49. http://dx.doi.org/10.1071/sb01037.

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Dryland salinity is a major problem in the agricultural areas of Western Australia, having significant detrimental impacts in both agricultural and non-agricultural arenas. Development of new woody perennial tree crops is an option for recharge control in the management of salinity and there is a focus on development of native species that are adapted to low-rainfall areas, with potential for commercial production. Acacia is an important genus for utilisation of woody perennials as there is a large number of species occurring in a wide variety of habitats, and many Acacia species are utilised

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6

De Silva, Jayath, and Robin Smith. "The role of landscape evolution & hydrostratigraphy in dryland salinity development and control in south-west Western Australia." ASEG Extended Abstracts 2007, no. 1 (December 1, 2007): 1–4. http://dx.doi.org/10.1071/aseg2007ab032.

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7

Stolte, W. J., D. J. McFarlane, and R. J. George. "Flow systems, tree plantations, and salinisation in a Western Australian catchment." Soil Research 35, no. 5 (1997): 1213. http://dx.doi.org/10.1071/s96066.

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A lower hillslope in the Western Australian wheatbelt had become waterlogged and saline by 1981, when close-spaced rows of eucalypts were planted in blocks both in and adjacent to the discharge area and piezometers were established on the site. We analysed the trends in the piezometric heads and salinity concentrations over the period of record. We also modelled the hillslope profile using finite element analysis to determine the water flow mechanisms and to see how a change in vegetation in the upland area would affect the waterlogging and salinity. Piezometric levels under the trees decrease

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Vincent, Wilma J. "Nutrient partitioning in the upper Canning River, Western Australia, and implications for the control of cyanobacterial blooms using salinity." Ecological Engineering 16, no. 3 (January 2001): 359–71. http://dx.doi.org/10.1016/s0925-8574(00)00121-x.

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Chan, Terence U., and David P. Hamilton. "Effect of freshwater flow on the succession and biomass of phytoplankton in a seasonal estuary." Marine and Freshwater Research 52, no. 6 (2001): 869. http://dx.doi.org/10.1071/mf00088.

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Physico-chemical factors affecting phytoplankton succession and dynamics are examined in the upper Swan River estuary, Western Australia. Freshwater discharge affects the residence time available for different phytoplankton taxa to grow. It also influences succession between marine, estuarine and freshwater phytoplankton taxa according to the extent that it hinders intrusion of marine water into the estuary. The three major phytoplankton groups, Bacillariophyta, Dinophyta and Chlorophyta, are strongly separated temporally by season, and spatially along the estuary according to flow and salinit

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10

Craig, GF, DT Bell, and CA Atkins. "Response to Salt and Waterlogging Stress of Ten Taxa of Acacia Selected From Naturally Saline Areas of Western Australia." Australian Journal of Botany 38, no. 6 (1990): 619. http://dx.doi.org/10.1071/bt9900619.

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Ten taxa of Acacia were selected from areas of moderate to high soil salinity (electrical conductivities of saturated soil paste extracts (ECe) between 1000 mS m--1 and 4800 mS m-1 at 50-600 mm depth) and sodicity to test the tolerance of young, symbiotic plants to increasing levels of salinity both with and without waterlogging. Nodulated plants, 3 months old, were grown in glasshouse experiments which consisted of four treatments: non-saline drained control (12 weeks); saline drained (12 weeks); non-saline waterlogged (5 weeks); and saline waterlogged (5 weeks). Acacia cyclops, A. brumalis,

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11

Cocks, P. S. "Ecology of herbaceous perennial legumes: a review of characteristics that may provide management options for the control of salinity and waterlogging in dryland cropping systems." Australian Journal of Agricultural Research 52, no. 2 (2001): 137. http://dx.doi.org/10.1071/ar99170.

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Salinity is a widespread problem caused by an imbalance between rainfall and transpiration in the dryland cropping systems of southern Australia. The need to use more perennials has been identified and this paper examines the possibility of replacing annual with perennial pasture legumes and the germplasm available to do so. While lucerne is already used widely in eastern Australia it has only recently been adopted in the wheat belt of Western Australia. There are doubts about its adaptation to acid soils and to climates where summer rainfall is low and ambient temperatures are high. There is

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12

Asseng, S., F. X. Dunin, I. R. P. Fillery, D. Tennant, and B. A. Keating. "Potential deep drainage under wheat crops in a Mediterranean climate. II. Management opportunities to control drainage." Australian Journal of Agricultural Research 52, no. 1 (2001): 57. http://dx.doi.org/10.1071/ar99187.

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High rates of deep drainage in Western Australia are contributing to groundwater recharge and secondary salinity. Strategies are being sought to increase water use in cropping systems and to reduce deep drainage. Quantifying potential drainage through measurements is hampered by the high degree of complexity of these systems as a result of diverse soil types, a range of crops, and in particular the inherent seasonal variability. Simulation models can provide the appropriate means to extrapolate across time and space. The Agricultural Production Systems Simulator (APSIM) was used to explore the

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Eastham, J., P. R. Scott, and R. Steckis. "Components of the water balance for tree species under evaluation for agroforestry to control salinity in the wheatbelt of Western Australia." Agroforestry Systems 26, no. 3 (June 1994): 157–69. http://dx.doi.org/10.1007/bf00711208.

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14

Salama, R. B., D. Laslett, and P. Farrington. "Predictive modelling of management options for the control of dryland salinity in a first-order catchment in the wheatbelt of Western Australia." Journal of Hydrology 145, no. 1-2 (May 1993): 19–40. http://dx.doi.org/10.1016/0022-1694(93)90218-x.

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Biggs, Andrew J. W., and Peter Binns. "Soil morphological and chemical profiles adjacent to a bore drain in south-western Queensland, Australia." Soil Research 53, no. 3 (2015): 325. http://dx.doi.org/10.1071/sr14195.

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A recently abandoned artesian bore drain in south-western Queensland was sampled to investigate soil morphology and chemistry under, and adjacent to, the drain. Such drains are supplied with alkaline, sodium-rich artesian groundwater and they provide a long-term example of the impacts of these waters on soils. A Red Kandosol and a Grey Vertosol were sampled, in the drain and at 2, 4 and 25 m perpendicular to the drain. Morphological attributes indicative of long-term saturation, such as mottling, were evident around the drains, but were absent at the control sites (25 m away). At the Kandosol

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Hamilton, LJ. "Temperature inversions at intermediate depths in the Antarctic Intermediate waters of the South-western Pacific." Marine and Freshwater Research 41, no. 3 (1990): 325. http://dx.doi.org/10.1071/mf9900325.

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Deep (about 1000 m) marked temperature inversions and/or salinity reversals found in conductivity- temperature-depth profiles in the south-western Pacific for 1985 to 1987 are shown to arise from confluences of different branches of the Antarctic Intermediate Water (AAIW). Salinity reversals lead to the presence of several intermediate-depth salinity minima instead of the simple broad minimum in the vertical usually described as characterizing the presence of AAIW in this area. The anomalies are found at particular locations, often near ridges and rises. Significantly differing thermohaline pr

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Harper, R. J., K. R. J. Smettem, and R. J. Tomlinson. "Using soil and climatic data to estimate the performance of trees, carbon sequestration and recharge potential at the catchment scale." Australian Journal of Experimental Agriculture 45, no. 11 (2005): 1389. http://dx.doi.org/10.1071/ea04186.

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There is considerable interest in integrating deep-rooted perennial plants into the dryland farming systems of southern Australia as soil, water supplies and biodiversity are continually threatened by salinity. In addition to wood products, trees could provide new products, such as bioenergy, environmental services, such as the sequestration of carbon, reductions in recharge to groundwater and biodiversity protection. Before marketing these services, it is necessary to determine the optimal distribution of trees across the landscape, in terms of land suitability, their productivity, and proxim

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18

Farrell, RCC, DT Bell, K. Akilan, and JK Marshall. "Morphological and Physiological Comparisons of Clonal Lines of Eucalyptus camaldulensis. II. Responses to Waterlogging/Salinity and Alkalinity." Functional Plant Biology 23, no. 4 (1996): 509. http://dx.doi.org/10.1071/pp9960509.

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Eucalyptus camaldulensis Dehnh. has previously been shown to survive and grow in waterlogged, highly saline and highly alkaline soils. The ability of six clones from five provenances of E. camaldulensis to produce biomass and utilise water, and the processes of stomatal conductance and gas exchange under stress conditions was examined under controlled conditions in a glasshouse. A clone originally from Wooramel, Western Australia (M80) produced the largest total plant biomass, the greatest total leaf area and greatest total root dry weight under conditions of waterlogging and gradually increas

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Eastham, J., P. R. Scott, R. A. Steckis, A. F. M. Barton, L. J. Hunter, and R. J. Sudmeyer. "Survival, growth and productivity of tree species under evaluation for agroforestry to control salinity in the Western Australian wheatbelt." Agroforestry Systems 21, no. 3 (March 1993): 223–37. http://dx.doi.org/10.1007/bf00705242.

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20

Barrett-Lennard, Edward G., Rushna Munir, Dana Mulvany, Laine Williamson, Glen Riethmuller, Callum Wesley, and David Hall. "Micro-Water Harvesting and Soil Amendment Increase Grain Yields of Barley on a Heavy-Textured Alkaline Sodic Soil in a Rainfed Mediterranean Environment." Agronomy 11, no. 4 (April 8, 2021): 713. http://dx.doi.org/10.3390/agronomy11040713.

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This paper focuses on the adverse effects of soil sodicity and alkalinity on the growth of barley (Hordeum vulgare L.) in a rainfed environment in south-western Australia. These conditions cause the accumulation of salt (called ‘transient salinity’) in the root zone, which decreases the solute potential of the soil solution, particularly at the end of the growing season as the soil dries. We hypothesized that two approaches could help overcome this stress: (a) improved micro-water harvesting at the soil surface, which would help maintain soil hydration, decreasing the salinity of the soil solu

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Bolger, T. P., and N. C. Turner. "Water use efficiency and water use of Mediterranean annual pastures in southern Australia." Australian Journal of Agricultural Research 50, no. 6 (1999): 1035. http://dx.doi.org/10.1071/ar98109.

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There is a perception in the farming and research communities that annual pastures have low produc- tivity and water use, and contribute disproportionately to problems of rising watertables and dryland salinity. Our aim was to determine potential pasture production in relation to water use and the influence of management factors on this relationship. Experiments were initiated at 4 locations along a gradient of 300–1100 mm annual rainfall across the Western Australian agricultural zone. At each site a high input treatment was compared with a low input control. There was a strong linear relatio

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22

Burgess, Ray, Sarah L. Goldsmith, Hirochika Sumino, Jamie D. Gilmour, Bernard Marty, Magali Pujol, and Kurt O. Konhauser. "Archean to Paleoproterozoic seawater halogen ratios recorded by fluid inclusions in chert and hydrothermal quartz." American Mineralogist 105, no. 9 (September 1, 2020): 1317–25. http://dx.doi.org/10.2138/am-2020-7238.

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Abstract Past changes in the halogen composition of seawater are anticipated based on the differing behavior of chlorine and bromine that are strongly partitioned into seawater, relative to iodine, which is extremely depleted in modern seawater and enriched in marine sediments due to biological uptake. Here we assess the use of chert, a chemical sediment that precipitated throughout the Precambrian, as a proxy for halide ratios in ancient seawater. We determine a set of criteria that can be used to assess the primary nature of halogens and show that ancient seawater Br/Cl and I/Cl ratios can b

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23

Oliver, Y. M., E. C. Lefroy, R. Stirzaker, and C. L. Davies. "Deep-drainage control and yield: the trade-off between trees and crops in agroforestry systems in the medium to low rainfall areas of Australia." Australian Journal of Agricultural Research 56, no. 10 (2005): 1011. http://dx.doi.org/10.1071/ar04213.

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In the dryland cropping areas of southern Australia, at risk from dryland salinity, tree belts can improve water management by taking up water unused by crops, with the risk that crop yield will be reduced through competition. As there are few direct markets for tree products grown in the medium to low rainfall areas, the design of agroforestry systems becomes important in reducing the trade-off in crop yield. This study examined some factors that influence the trade-off between crop yield and deep-drainage control in order to develop design guidelines for medium to low rainfall agroforestry.

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Evans, P. M., and G. A. Kearney. "Melilotus albus (Medik.) is productive and regenerates well on saline soils of neutral to alkaline reaction in the high rainfall zone of south-western Victoria." Australian Journal of Experimental Agriculture 43, no. 4 (2003): 349. http://dx.doi.org/10.1071/ea02079.

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Dryland salinity is a serious problem in Australia. While some introduced perennial grasses such as tall wheat grass (TWG) Thinopyrum ponticum (Podp. Z.W. Liu & R.R.C. Wang) are adapted to saline soils, there are few pasture legumes that are productive and persistent under saline conditions. Melilotus albus (Medik.) has the potential to be 1 such legume in southern Australia. To test the potential of this species, we conducted 2 experiments over a 3-year period on saline soils at Woorndoo and Glenthompson in south-western Victoria. The soil electrical conductivities (1 : 5 water) of the si

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Turner, Neil C., and Senthold Asseng. "Productivity, sustainability, and rainfall-use efficiency in Australian rainfed Mediterranean agricultural systems." Australian Journal of Agricultural Research 56, no. 11 (2005): 1123. http://dx.doi.org/10.1071/ar05076.

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Mediterranean environments are characterised by hot, dry summers and cool, wet winters. The native vegetation in Mediterranean-climatic regions is predominantly perennial shrubs and trees intermixed with annual forbs. In south-western Australia, the spread of agriculture has seen the well adapted perennial vegetation replaced by rainfed annual crops and pastures. This has increased waterlogging and secondary salinity, thereby causing loss of productivity in ~10% of the cleared land area. To reduce deep drainage and make the agricultural systems environmentally sustainable requires the re-intro

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Calica, Phoebe N. "Nodulation and Nitrogen Fixation of Pongamia pinnata." Journal of Tropical Crop Science 4, no. 1 (February 1, 2017): 1–12. http://dx.doi.org/10.29244/jtcs.4.1.1-12.

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Nitrogen is one of the most important nutrients required by plants as a major component of all nucleic acids and proteins such as enzymes which control and enable their growth and reproduction. While much research has been conducted on the legume tree Pongamia (a candidate source for renewable biofuel), there is only a handful of studies on the mechanisms and regulation of nitrogen fixation, which is considered as one of the most important domestication traits that needs to be investigated. Steps to optimize the symbiotic nitrogen fixation of Pongamia is, firstly, to select the best rhizobial

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McCaskill, M. R., and G. A. Kearney. "Control of water leakage from below the root zone by summer-active pastures is associated with persistence, density and deep rootedness." Crop and Pasture Science 67, no. 6 (2016): 679. http://dx.doi.org/10.1071/cp15337.

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Temperate pastures that leak water below the root zone have been linked to an increase in dryland salinity in southern Australia through their conservative use of stored water. An experiment was conducted at Hamilton in south-western Victoria to test the hypothesis that deep-rooted, summer-active perennial pasture species can substantially reduce leakage. On topographic crests the experiment compared lucerne and chicory with a traditional perennial ryegrass variety with low summer activity, whereas on the poorly drained valleys the comparison was between tall fescue, kikuyu and a perennial rye

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Clarke, C. J., R. J. George, R. W. Bell, and R. J. Hobbs. "Major faults and the development of dryland salinity in the western wheatbelt of Western Australia." Hydrology and Earth System Sciences 2, no. 1 (March 31, 1998): 77–91. http://dx.doi.org/10.5194/hess-2-77-1998.

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Abstract. Dryland salinity poses a major threat to agricultural production in the wheatbelt of Western Australia and much time and effort is expended on understanding the mechanisms which cause it and on developing techniques to halt or reverse its development. Whilst the location of much dryland salinity can be explained by its topographic position, a significant proportion of it cannot. This study investigated the hypothesis that major faults in the Yilgarn Craton represented in aeromagnetic data by intense curvilinear lows explained the location of areas of dryland salinity not explained by

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Taylor, R. J., and G. Hoxley. "Dryland salinity in Western Australia: managing a changing water cycle." Water Science and Technology 47, no. 7-8 (April 1, 2003): 201–7. http://dx.doi.org/10.2166/wst.2003.0690.

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Clearing of agricultural land has resulted in significant changes to the surface and groundwater hydrology. Currently about 10% of agricultural land in Western Australia is affected by dryland salinity and between a quarter and a third of the area is predicted to be lost to salinity before a new hydrological equilibrium is reached. This paper develops a general statement describing the changes to the surface and groundwater hydrology of the wheatbelt of Western Australia between preclearing, the year 2000 and into the future. For typical catchments in the wheatbelt it is estimated that average

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Wilkes, Paul, Brett Harris, and Anton Kepic. "Geoscience, Water and Salinity in Rural Towns of Western Australia." ASEG Extended Abstracts 2007, no. 1 (December 1, 2007): 1. http://dx.doi.org/10.1071/aseg2007ab161.

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Pannell, David J., Donald J. McFarlane, and Ruhi Ferdowsian. "Rethinking the externality issue for dryland salinity in Western Australia." Australian Journal of Agricultural and Resource Economics 45, no. 3 (September 2001): 459–75. http://dx.doi.org/10.1111/1467-8489.00152.

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Schofield, N. J. "Tree planting for dryland salinity control in Australia." Agroforestry Systems 20, no. 1-2 (November 1992): 1–23. http://dx.doi.org/10.1007/bf00055303.

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Halse, SA, MR Williams, RP Jaensch, and JAK Lane. "Wetland characteristics and waterbird use of wetlands in south-western Australia." Wildlife Research 20, no. 1 (1993): 103. http://dx.doi.org/10.1071/wr9930103.

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The presence or absence of 61 waterbird species on 95 wetlands in south-western Australia was related to six wetland characteristics: salinity, emergent vegetation, water depth, pH, phosphorus level and wetland size. More species were associated with salinity and vegetation than with other wetland characteristics. There were more positive associations with brackish than with fresh or saline wetlands and few species occurred in hypersaline wetlands. Trees or shrubs and sedges were the vegetation with which most species were associated; few species were recorded on completely open wetlands or th

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Kimmerer, WJ, AD McKinnon, MJ Atkinson, and JA Kessell. "Spatial distributions of plankton in Shark Bay, Western Australia." Marine and Freshwater Research 36, no. 3 (1985): 421. http://dx.doi.org/10.1071/mf9850421.

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The zooplankton of Shark Bay, Western Australia, shows an unusual pattern of abundance, with an initial increase from the ocean to the central bay, and a decrease of four orders of magnitude into the hypersaline region. The daytime zooplankton abundance in Hamelin Pool, at a salinity of >60 mg 1-1, is of a similar magnitude to that of the deep sea, and 100-fold below typical surface oceanic values. Night abundances are higher, but still well below surface oceanic values. The diverse oceanic community of net phytoplankton and zooplankton is replaced at intermediate salinities by a less diver

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Kington, E. A., and D. J. Pannell. "Dryland salinity in the Upper Kent River catchment of Western Australia: farmer perceptions and practices." Australian Journal of Experimental Agriculture 43, no. 1 (2003): 19. http://dx.doi.org/10.1071/ea01058.

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Dryland salinity, resulting from extensive land clearing, has been increasingly recognised as a serious environmental and economic problem in Western Australia. Policy initiatives at the state and national level in Australia have attempted to influence farmers' choices of land management practices to reduce the threat of salinity. This study examines, for a particular catchment, what farmers' salinity management practices have been and are likely to be, how farmers view the salinity problem and its recommended treatments, and farmers' perceptions of why the salinity problem continues to worsen

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Barrett-Lennard, Edward G., Geoffrey C. Anderson, Karen W. Holmes, and Aidan Sinnott. "High soil sodicity and alkalinity cause transient salinity in south-western Australia." Soil Research 54, no. 4 (2016): 407. http://dx.doi.org/10.1071/sr15052.

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Transient salinity associated with increased dispersion of clays is arguably one of the most economically important soil constraints in Australia because it occurs on land that is regularly cropped. However, this issue is rarely studied. This paper examines the occurrence of transient salinity on agricultural land in the south-west of Western Australia and the factors causing it. We analysed four soil datasets from the region, collected at scales varying from the entire south-west to a single paddock. A variety of soil parameters were correlated with increased electrical conductivity (EC1:5).

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Cresswell, GR, and JL Peterson. "The Leeuwin Current south of Western Australia." Marine and Freshwater Research 44, no. 2 (1993): 285. http://dx.doi.org/10.1071/mf9930285.

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Satellite images as well as data collected in situ were used to follow the seasonal changes of the Leeuwin Current south of Western Australia (WA) in 1986-87. The current has two major sources: salty subtropical water from west of WA, and fresher tropical water from north of WA. In summer, the tropical waters are excluded by the strong equatorward wind stress. In autumn and winter, this wind stress is reduced and tropical waters flood southward to dominate the flow. Nevertheless, salty subtropical water is entrained en route, and so, whatever the season, the Leeuwin Current is more saline than

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Pepper, R. G., and G. F. Craig. "Resistance of Selected Eucalptys Species to Soil Salinity in Western Australia." Journal of Applied Ecology 23, no. 3 (December 1986): 977. http://dx.doi.org/10.2307/2403949.

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Beresford, Quentin, Harry Phillips, and Hugo Bekle. "The Salinity Crisis in Western Australia: A Case of Policy Paralysis." Australian Journal of Public Administration 60, no. 4 (December 2001): 30–38. http://dx.doi.org/10.1111/1467-8500.00239.

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40

George, Richard, Don McFarlane, and Bob Nulsen. "Salinity Threatens the Viability of Agriculture and Ecosystems in Western Australia." Hydrogeology Journal 5, no. 1 (January 1997): 6–21. http://dx.doi.org/10.1007/s100400050103.

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Schofield, NJ. "Predicting the effects of land disturbances on stream salinity in southwest Western Australia." Soil Research 26, no. 2 (1988): 425. http://dx.doi.org/10.1071/sr9880425.

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A model developed by A. J. Peck to predict the effects of land disturbances on stream salinity has been extended to take account of increased stream runoff, and applied to the jarrah forest region with improved parameter estimates. Validation on Wights experimental catchment suggests that the model is capable of reliable predictions in the case of agricultural clearing. However, the extended model did not provide discernibly better predictions than the original model. When applied to rainfall zones of the northern jarrah forest of W.A., the model predicted that agricultural clearing would resu

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Paling, EI, AJ McComb, and JS Pate. "Nitrogen fixation (acetylene reduction) in nonheterocystous cyanobacterial mats from the Dampier Archipelago, Western Australia." Marine and Freshwater Research 40, no. 2 (1989): 147. http://dx.doi.org/10.1071/mf9890147.

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Discs punched from non-heterocystous cyanobacterial mats, one containing Microcoleus chthonoplastes, Oscillatoria sp. and Phormidium sp., the other Phorrnidium sp. and Aphanocapsa sp., were incubated for 23 days in artificial sea-water of salinity 0 to 140 g L-1. The chlorophyll a content of both mats increased over this salinity range, with lower increases above 100 g L-1. There was little change in the species composition of mats at salinities 240 g L-1; ≥ 40 g L-1, mats produced essentially monospecific thalli containing small quantities of the other species. Acetylene reduction ranged from

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Musk, A. W., R. Shean, N. Walker, and M. Swanson. "Progress on smoking control in Western Australia." BMJ 308, no. 6925 (February 5, 1994): 395–98. http://dx.doi.org/10.1136/bmj.308.6925.395.

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Musk, A. W., R. Shean, and S. Woodward. "Legislation for smoking control in Western Australia." BMJ 290, no. 6481 (May 25, 1985): 1562–65. http://dx.doi.org/10.1136/bmj.290.6481.1562.

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Lymbery, A. J., R. G. Doupé, and N. E. Pettit. "Effects of salinisation on riparian plant communities in experimental catchments on the Collie River, Western Australia." Australian Journal of Botany 51, no. 6 (2003): 667. http://dx.doi.org/10.1071/bt02119.

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Although the salinisation of streams has long been recognised as one of Western Australia's most serious environmental and resource problems, there is very little published information on the effects of salinisation on riparian flora and fauna. We studied riparian vegetation in three experimental catchments on the Collie River in Western Australia. The catchments are situated within a 5-km area of state forest and are geologically and botanically similar, but differ in the extent of clearing, groundwater levels and stream salinity. In each catchment, transects were taken perpendicular to the d

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Furby, Suzanne, Peter Caccetta, and Jeremy Wallace. "Salinity Monitoring in Western Australia using Remotely Sensed and Other Spatial Data." Journal of Environmental Quality 39, no. 1 (January 2010): 16–25. http://dx.doi.org/10.2134/jeq2009.0036.

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Robertson, M. J., R. J. George, M. H. O'Connor, W. Dawes, Y. M. Oliver, and G. P. Raper. "Temporal and spatial patterns of salinity in a catchment of the central wheatbelt of Western Australia." Soil Research 48, no. 4 (2010): 326. http://dx.doi.org/10.1071/sr09126.

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Many estimates have been made of the future likely extent of salinity at regional and national scales in Australia; however, there are few detailed studies of changes in temporal and spatial patterns at catchment scale. This study was conducted in the Wallatin and O’Brien catchments in the low–medium rainfall zone of the central wheatbelt of Western Australia, where we examined the spatial trends in saline land over the last 18 years and related these to the likely rate and extent of future salinisation. The analysis showed that: (1) salinity has continued to expand post-1999 in landscape posi

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Dawes, W. R., M. Gilfedder, M. Stauffacher, J. Coram, S. Hajkowicz, G. R. Walker, and M. Young. "Assessing the viability of recharge reduction fordryland salinity control: Wanilla, Eyre Peninsula." Soil Research 40, no. 8 (2002): 1407. http://dx.doi.org/10.1071/sr01044.

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The emerging paradigm to manage the spread of dryland salinity is the manipulation of farming practice to provide both a reduction in recharge and a commercial return to farm enterprises. Recent work has attempted to classify the groundwater systems across Australia into distinct provinces, with the implication that the flow processes, and therefore remediation strategies, of catchments within each province are similar. This paper presents a case study of the Wanilla catchment on the Eyre Peninsula in South Australia. This catchment is in the groundwater province that includes 60% of the dryla

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Clarke, C. J., R. J. George, R. W. Bell, and T. J. Hatton. "Dryland salinity in south-western Australia: its origins, remedies, and future research directions." Soil Research 40, no. 1 (2002): 93. http://dx.doi.org/10.1071/sr01028.

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Replacement of deep-rooted, perennial native vegetation with shallow-rooted, annual agricultural plants has resulted in increased recharge causing shallow saline water tables leading to dryland salinity and loss of agricultural production. Restoring the vegetation by regeneration or replanting lowers water levels locally but field evidence and computer modelling suggests this needs to be widespread for regional effects, which conflicts with the future of conventional agriculture. Alley farming allows agriculture to be continued in the bays between the rows, but needs as much perennial, prefera

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Halse, S. A., J. K. Ruprecht, and A. M. Pinder. "Salinisation and prospects for biodiversity in rivers and wetlands of south-west Western Australia." Australian Journal of Botany 51, no. 6 (2003): 673. http://dx.doi.org/10.1071/bt02113.

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Saline water was common in south-west Western Australian aquatic systems prior to land-clearing because most streams and wetlands were ephemeral and evapo-concentrated as they dried, and there were high concentrations of stored salt in groundwater and soil profiles. Nevertheless, a 1998 review of salinity trends in rivers of south-west Western Australia showed that 20-fold increases in salinity concentrations had occurred since clearing in the medium-rainfall zone (300–700 mm). More recent data confirm these trends and show that elevated salinities have already caused substantial changes to th

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