Concentrations of some inorganic plant nutrients in saline lakes on the Yorke Peninsula, South Australia

1987 ◽  
Vol 38 (2) ◽  
pp. 301 ◽  
Author(s):  
H Tominaga ◽  
N Tominaga ◽  
WD Williams

The concentrations of major ions (Na+, K+, Ca2+, Mg2+, Cl-, SO42- and HCO3- + CO32-) and minor ions (NO2, NO3-, NH4 and PO43-) were determined in 10 saline and mostly ephemeral lakes on the Yorke Peninsula, S.A., over a range of salinity (27-250 g/l). The major ion dominances were similar to those of saline lakes elsewhere in southern Australia: Na+> Mg2+ > Ca2+ > K+ : Cl- > SO42- > HCO3- + CO32-. Concentration ranges of minor ions were wide; individual concentrations of ions were not correlated with salinity, but in the least-saline lakes (salinity < 150 g/l) phosphorus appears to be the most likely limiting plant nutrient, whereas in the more saline lakes (>150 g/l) nitrogen appears to be so.

1976 ◽  
Vol 27 (3) ◽  
pp. 379 ◽  
Author(s):  
WD Williams ◽  
RT Buckney

Numerous analyses of the major ions in surface waters of South Australia, south-western Western Australia, and northern Australia are presented and discussed. In South Australia three regions were investigated: the Yorke Peninsula, the Snowtown area, and the extreme south-east including the Coorong. In all three areas salinities were high, except for Lake Alexandrina and Lake Albert at the mouth of the River Murray, and sodium and chloride were the dominant ions. In rivers and standing waters in the south-west of Western Australia sodium and chloride were likewise the dominant ions. Almost all standing waters sampled in this region were saline and salinity was also high in some rivers investigated; there are, nevertheless, freshwater lakes and rivers of low salinity in this region. In running and standing waters of northern Australia, salinities were low and there was no consistent pattern of ionic dominance.


2007 ◽  
Vol 101 (5) ◽  
pp. 1323-1330 ◽  
Author(s):  
Helen P. Waudby ◽  
Sophie Petit ◽  
Bruce Dixon ◽  
Ross H. Andrews

2018 ◽  
Vol 194 ◽  
pp. 239-256 ◽  
Author(s):  
Keryn Wolff ◽  
Caroline Tiddy ◽  
Dave Giles ◽  
Steve M. Hill

2019 ◽  
Vol 20 (1) ◽  
pp. 335-347 ◽  
Author(s):  
Yingzhi Li ◽  
Jiutan Liu ◽  
Zongjun Gao ◽  
Min Wang ◽  
Leqi Yu

Abstract Shigaze city is situated in the southwestern Tibetan Plateau and is the second largest city in the Tibet Autonomous Region. Groundwater is the major source of domestic and drinking water for urban inhabitants. In this study, the major ion chemistry and a water quality assessment of groundwater were studied using geochemical methods and fuzzy comprehensive assessment. Groundwater was classified as slightly alkaline soft and hard freshwater, and the influence of anthropogenic activities on groundwater was relatively weak. The dominant cations and anions were Ca2+ and Mg2+ and HCO3− and SO42−, respectively. Overall, the mean concentrations of major ions in groundwater increase gradually over time, except for NO3−; however, the mean value of pH decreases over time. Most groundwater samples belong to the type of HCO3-Ca, and the groundwater has a trend of evolution from HCO3-Ca to the mixed type. Rock weathering was the main hydrogeochemical process controlling groundwater hydrochemistry, and the dissolution of carbonate and silicate minerals were the primary contributors to the formation of the major ion chemistry of groundwater. Major ions of groundwater in the urban area of Shigaze are below the standard limits, and the groundwater is excellent for drinking according to the fuzzy comprehensive assessment.


1988 ◽  
Vol 78 (3) ◽  
pp. 493-509 ◽  
Author(s):  
Garrick McDonald ◽  
Roger A. Farrow

AbstractAerial sampling for Nysius vinitor Bergroth was undertaken in the surface and upper air, at altitudes of 2 and 100-300 m, respectively, at Trangie in central New South Wales and at Corny Point, Yorke Peninsula, South Australia. Insects were sampled for 15 periods, each of 3-11 days, between October 1979 and February 1984, covering all months except January, March and May. N. vinitor was one of the most abundant insects caught in the upper air during the day and night (mean density of 652/106 m3), while the congeneric N. clevelandensis Evans was rarely caught at any time. N. vinitor was caught in all months sampled except for the winter months of July and August, and the largest daily catches occurred in September. Females were generally less common than males, although the relative incidence in the upper air catches frequently increased significantly from day to night. Fewer mature females were caught in the upper air (0-16·8%) than at the surface (0-48·4%). Densities were generally much greater in the surface air than in the upper air, although during the major flights of spring, there was less than a two-fold difference, indicating increased migratory activity. Migration occurred in a range of synoptic conditions resulting in the displacement of individuals in a variety of directions and distances depending on synoptic flow at the time of flight. Major migrations occurred at night, following dusk take-off, in disturbed weather associated with prefrontal airflows. These resulted in net southward displacements of ca 200-300 km depending on flight duration. It is suggested that major immigration flights into central-western New South Wales and regions to the south regularly occur in early spring (September-October) and probably arise from breeding areas in subtropical latitudes.


1976 ◽  
Vol 27 (1) ◽  
pp. 73
Author(s):  
RT Buckney

A two-number description of the major ion chemistry of inland waters is derived from data on total concentration and the relative proportions of major ions (stoichiometry), and used to describe some broad features of Tasmanian inland waters. Equilibrium and other controls on pH and silica concentration are identified. Other possible uses of the binary numerical description are discussed.


Lithos ◽  
2014 ◽  
Vol 208-209 ◽  
pp. 178-201 ◽  
Author(s):  
Alkis Kontonikas-Charos ◽  
Cristiana L. Ciobanu ◽  
Nigel J. Cook

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