Limnological studies of waterfowl habitat in south-western New South Wales. II. Aquatic macrophyte productivity

1985 ◽  
Vol 36 (5) ◽  
pp. 707 ◽  
Author(s):  
SV Briggs ◽  
MT Maher
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Aquatic Macrophyte ◽  
New South ◽  
New South Wales ◽  
South Wales ◽  
Waterfowl Habitat ◽  
Dry Out ◽  
The Relationship ◽  
Wetland Flooding

Aquatic macrophyte productivity and soil organic matter were measured in two impermanent wetlands in south-western New South Wales. Macrophyte biomasses (≤463 g dry wt m-2) were similar to or higher than those in submerged communities elsewhere. Macrophyte productivities in both wetlands were greatest in the year following reflooding. But even in that year, macrophyte productivity in Lake Merrimajeel (the only wetland for which data are available) was considerably less than soil organic reserves before reflooding. It is suggested that these soil organic reserves directly contribute to the relationship between wetland flooding and waterfowl breeding, while macrophytes contribute indirectly by providing detritus for invertebrates. It is recommended that wetlands managed for waterfowl breeding should periodically dry out and reflood.

Limnological studies of waterfowl habitat in south-western New South Wales. I. Water chemistry

1985 ◽  
Vol 36 (1) ◽  
pp. 59 ◽  
Author(s):  
SV Briggs ◽  
MT Maher ◽  
SM Carpenter
Keyword(s):  
Water Chemistry ◽  
Water Level ◽  
New South ◽  
New South Wales ◽  
Iron Phosphate ◽  
Moisture Regime ◽  
South Wales ◽  
Waterfowl Habitat ◽  
Phosphate Nitrate ◽  
The Relationship

Water chemistry in two impermanent wetlands in inland south-westem New South Wales was studied as part of a larger investigation into the relationship between water level rises and waterfowl breeding in such wetlands. Ionic dominances, nutrient levels and relationships between nutrient or ion and wetland, season, water level and moisture regime are considered. Sodium, potassium, calcium and chloride concentrations, conductivity and pH were inversely related to water level. Total loads of iron, phosphate, nitrate and sulfate increased as the wetlands flooded during wetting phases. Nitrate and phosphate levels in experimental tanks also peaked after flooding. The effect of wetland drying and reflooding on nutrient availability is discussed.

Bunch covers, leaf number and yield of bananas

1970 ◽  
Vol 10 (47) ◽  
pp. 802 ◽  
Author(s):  
DW Turner
Keyword(s):  
Water Relations ◽  
New South ◽  
New South Wales ◽  
Leaf Length ◽  
Leaf Number ◽  
South Wales ◽  
North Eastern ◽  
Number Of Leaves ◽  
The Relationship

The effects of plastic bunch covers and varying defoliation treatments on bunch weight were measured on Williams bananas at Alstonville in north-eastern New South Wales. Bunch covers did not significantly affect bunch weight. The number of leaves left on the plant at bunch emergence only reduced yield when less than four leaves were present. Leaf length duration was calculated and was positively related to bunch weight. Bunch covers did not alter the relationship between leaf number and yield. The rate of sucker growth and water relations within the plants were altered by defoliation treatments. Both of these effects were greatest when less than three leaves were left on the plant.

scholarly journals Screen-time, obesity, ageing and disability: findings from 91 266 participants in the 45 and Up Study

2010 ◽  
Vol 14 (1) ◽  
pp. 34-43 ◽  
Author(s):  
Emily Banks ◽  
Louisa Jorm ◽  
Kris Rogers ◽  
Mark Clements ◽  
Adrian Bauman
Keyword(s):  
Physical Activity ◽  
Screen Time ◽  
Vegetable Consumption ◽  
New South ◽  
New South Wales ◽  
Full Time ◽  
Obesity Prevalence ◽  
Cross Sectional ◽  
South Wales ◽  
The Relationship

AbstractObjectiveTo assess the relationship between obesity and sedentary behaviours, such as watching television or using a computer (‘screen-time’), and describe how this relationship varies between population subgroups.DesignCross-sectional analysis of the relationship between obesity (BMI ≥ 30 kg/m2) and screen-time, adjusted for age, sex, income and education and compared according to a range of personal characteristics.SettingNew South Wales, Australia.SubjectsA total of 91 266 men and women aged 45 years and above from the general population of New South Wales in 2006–2007 and providing self-reported information on height and weight and other factors.ResultsObesity prevalence was 21·4 %. Compared to individuals with <2 h of daily screen-time, the adjusted relative risks (RR) of obesity were 1·35 (95 % CI 1·26, 1·44), 1·70 (95 % CI 1·59, 1·82), 1·94 (95 % CI 1·81, 2·08) and 1·92 (95 % CI 1·80, 2·06) for 2–3, 4–5, 6–7 and ≥8 h, respectively. The increase in obesity with increasing screen-time was similar within categories of overall physical activity, but was attenuated in those in full-time paid work, compared to non-workers (P for interaction < 0·0001). Among non-workers, the overall obesity RR per 2 h increase in daily screen-time was 1·23 (95 % CI 1·21, 1·25) and was significantly elevated in all groups examined, ranging from 1·16 to 1·31 according to sex, level of age, education, income, smoking and fruit consumption. The RR did not differ significantly according to overall physical activity, region of residence and alcohol and vegetable consumption, but was substantially lower in disabled v. not-disabled individuals (P for interaction < 0·0001).ConclusionsObesity increases with increasing screen-time, independent of purposeful physical activity. This was observed in all population groups examined, although it is attenuated in full-time workers and disabled individuals.

Low nodulation and nitrogen fixation of mungbean reduce biomass and grain yields

2005 ◽  
Vol 45 (3) ◽  
pp. 269 ◽  
Author(s):  
D. F. Herridge ◽  
M. J. Robertson ◽  
B. Cocks ◽  
M. B. Peoples ◽  
J. F. Holland ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
Grain Yield ◽  
New South ◽  
New South Wales ◽  
Soil Nitrate ◽  
Grain Yields ◽  
South Wales ◽  
Negative Effect ◽  
On Farm ◽  
The Relationship

Apparent nodulation failures and associated low grain yields have been reported for commercial mungbean (Vigna radiata) crops in southern Queensland and northern New South Wales. We therefore conducted on-farm surveys of 40 commercial mungbean crops in the region in which symbiotic traits, i.e. nodulation and nitrogen fixation, and biomass and grain yield were monitored. Effects of bradyrhizobial inoculation and inoculation methods on mungbean and soybean (Glycine max) symbiosis and yield were determined in experiments at 3 sites in northern New South Wales. Thirty-four of the 35 mungbean crops assessed for nodulation were nodulated. The relationship between soil nitrate to a depth of 90 cm at sowing and mungbean nodulation was not significant. However, at low-to-moderate soil nitrate levels (<100 kg N/ha), the mean nodule score was 1.6, compared with 0.5 at high (>100 kg N/ha) soil nitrate levels. Soil nitrate had a negative effect on the percentage of mungbean nitrogen derived from nitrogen fixation (%Ndfa). Mean %Ndfa values for soil nitrate levels <50, >50–100 and >100 kg N/ha were 35, 22 and 19% respectively. Grain yields of the surveyed mungbean crops varied from 0.3 to 2.1 t/ha, and were correlated with shoot dry matter. Grain yield was not significantly correlated either with sowing soil nitrate, nodule score or %Ndfa. In the inoculation experiments, mungbean did not nodulate as well as soybean, producing about one-third the number of nodules. Both species responded to inoculation with increased nodulation, although data from one of the sites suggested that responses during early growth of mungbean were not maintained during pod-fill. Effects of inoculation on mungbean %Ndfa were marginal. Average increases were 9%, based on natural 15N abundance, and 6%, based on the ureide method. Soybean %Ndfa, on the other hand, responded strongly to inoculation, with increases of 56 (15N) and 77% (ureide). Inoculation increased mungbean crop N by an average of 10% and grain yield by 6%, compared with responses to fertiliser nitrogen of 31% (crop N) and 10% (grain yield). For soybean, inoculation increased crop nitrogen by 43% and grain yield by 7%, similar to responses to fertiliser nitrogen of 45 (crop N) and 5% (grain yield). These results suggest that inoculated mungbean was N-limited and that inoculation of mungbean using current technology may be somewhat ineffectual. We concluded that low nodulation and nitrogen fixation of commercial mungbean most likely results from the suppressive effects of nitrate and/or insufficient numbers of bradyrhizobia in the soil. When low symbiosis and low soil nitrate are combined, N is likely to limit crop growth, and potentially grain yield. Suggested strategies for improving mungbean nodulation and nitrogen fixation in the northern grains belt include selection of more symbiotically competent plant and bradyrhizobial genotypes and more effective utilisation of established soil populations of mungbean bradyrhizobia.

The relationship between vegetation patterns and environment on the south coast of New South Wales

1995 ◽  
Vol 72 (1) ◽  
pp. 71-80 ◽  
Author(s):  
I.A. Neave ◽  
S.M. Davey ◽  
J.J. Russell-Smith ◽  
R.G. Florence
Keyword(s):  
New South ◽  
New South Wales ◽  
South Coast ◽  
Vegetation Patterns ◽  
The South ◽  
South Wales ◽  
The Relationship

scholarly journals A COMPARATIVE STUDY OF FORECLOSURE LAW IN NEW SOUTH WALES, AUSTRALIA AND SOUTH AFRICA

Obiter ◽  
2017 ◽  
Vol 38 (3) ◽  
Author(s):  
Angus Lloyd Hornigold
Keyword(s):  
South Africa ◽  
Comparative Study ◽  
Theoretical Foundation ◽  
New South ◽  
New South Wales ◽  
Third Party ◽  
Reserve Price ◽  
South Wales ◽  
Legal Position ◽  
The Relationship

In South Africa, there is little authority on the relationship between the credit provider (bank) and the credit receiver (debtor) after a property has been declared executable and sold at an auction by the Sheriff of the Court following the debtor’s default on a loan underlying a mortgage bond. The Uniform Rules of Court may shortly be amended in order to allow a reserve price to be set at an auction. However, the bank may still be compelled to buy the property into possession (PIP) in order to preserve the asset so that it protects the interest of both itself and the debtor should this reserve price not be met by third party purchasers. This amendment is therefore unlikely to address the underlying problems that exist when a bank elects to buy a property at an auction. The authority that does exist provides that the banks stand in a different position vis-à-vis the debtor to that of a third party purchaser. Most notably, it provides that the bank has a duty to credit the proceeds of any sale, when the property is sold from its stock of PIPs to the account of the debtor. This appears to be correct, but there should be a sound theoretical foundation for this proposition. What further duties are owed to the debtor by the bank in these circumstances? In order to address this question, certain suggestions are made based on the New South Wales legal position.

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