Sustainable grazing systems for the Central Tablelands of New South Wales. 5. A bioeconomic framework for assessing the long-term economic benefits of grazing management tactics and implications for sustainability

2006 ◽  
Vol 46 (4) ◽  
pp. 495 ◽  
Author(s):  
R. E. Jones ◽  
P. M. Dowling ◽  
D. L. Michalk ◽  
W. McG. King
Keyword(s):  
Programming Model ◽  
New South ◽  
New South Wales ◽  
Economic Benefits ◽  
Grazing Management ◽  
South Wales ◽  
Grazing Systems ◽  
Sustainable Grazing ◽  
Management Tactics

There have been significant declines in the perennial grass (PG) content in native and sown pastures across temperate Australia. Not only has this reduced agricultural productivity, it has contributed to more serious degradation, such as loss of soil and biodiversity, decreasing water quality, and dryland salinity caused by rising watertables. Results from the Sustainable Grazing Systems Key Program (SGS) research undertaken at Carcoar on the Central Tablelands of New South Wales were reported by Michalk et al. (2003). This research indicated that grazing management tactics can be used to manipulate pasture composition, thereby changing animal production and water-use patterns. The main grazing tactic investigated was termed a summer grazing rest, where resting was imposed in late spring if PG composition was <50%. Reported in this present paper is an economic framework for valuing the long-term benefits of grazing management tactics. The framework involves the development of a bioeconomic modelling system that links a dynamic programming model with biophysical models for water and environmental processes, soil fertility, pasture growth, livestock energy requirements and the change in pasture species composition. The study concludes that long-term economic returns are improved by strategies, e.g. a summer rest, that lead to an increase in PG composition over time. The study also determined that environmental factors, such as deep drainage, runoff and soil loss, are reduced as perenniality is increased.

LICENSED KANGAROO SHOOTING IN NEW SOUTH WALES: THE PEOPLE, THE MONEY THEY MAKE AND THE ANIMALS THEY SHOOT

1986 ◽  
Vol 8 (1) ◽  
pp. 36
Author(s):  
M.D Young ◽  
R.J Delforce
Keyword(s):  
National Parks ◽  
New South ◽  
New South Wales ◽  
Economic Benefits ◽  
Social Characteristics ◽  
South Wales ◽  
The People ◽  
New Directions ◽  
Term Benefit

Sixty licensed kangaroo shooters were interviewed in New South Wales to determine their social characteristics, incomes and shooting preferences. Two groups of shooters were identified: those who take kangaroos only for immediate, maximum short term economic gain and those who attempt to husband local kangaroo populations to their long term benefit. Amongst the latter group there is both a lack of agreement and a general uncertainty about the optimal shooting strategy to achieve the long term economic benefits they desire. New directions in research and extension are suggested with a view to rectifying this dilemma. Data on the strategies used to take kangaroos for commercial purposes and the accuracy of certam information reported to the National Parks and Wildlife Service are also described.

Evaluation of oat forage for finishing prime lambs on the Northern Tablelands, New South Wales

1977 ◽  
Vol 17 (86) ◽  
pp. 385 ◽  
Author(s):  
KA Archer ◽  
FG Swain
Keyword(s):  
Dry Matter ◽  
New South ◽  
New South Wales ◽  
Early Spring ◽  
Grazing Management ◽  
South Wales ◽  
Grazing Systems ◽  
Grazing Period ◽  
Carry Over ◽  
Stocking Rates

In 1967 at Armidale, New South Wales, oats (Avena sativa cv. Cooba) were grown with or without 180 kg N ha-I and rotationally grazed on a three paddock system from July 13 to November 16 with Border Leicester x Merino lambs. Stocking rates were 20,40 or 60 sheep ha-1 (experiment 1). In 1968 (experiment 2) oats were rotationally grazed on either a three or four paddock system at stocking rates of 20, 30 or 40 lambs ha-1. Grazing began on either June 6 or July 17 and terminated on November 20. The rotational grazing systems allowed for a grazing period of two weeks and regrowth periods of four or six weeks. Application of nitrogen increased the quantity of dry matter available prior to grazing in 1967 by 20 per cent but did not affect regrowth rates during winter and early spring. In 1968, approximately 33 per cent more forage was available prior to grazing in mid-July than in early June. There was little effect of grazing management on the rate of regrowth. In both years, regrowth rates were low during winter and carry over residue was required to provide a continuity of available forage. Liveweight gains of lambs during winter and early spring reached 170 to 200 g head-1 day-1 at stocking rates of 20 or 30 sheep ha-1 for the early and late commencement of grazing treatments respectively. Lower gains to 120 g head-1 day-1 were recorded for six to eight weeks at higher stocking rates but subsequent liveweight losses occurred; these being greater if grazing commenced early. Neither N nor grazing management system materially affected liveweight gains. Approximately 1.5 kg available dry matter head-1day-1 was required at the start of each fortnightly grazing period to ensure maximum liveweight gains

Goat and Sheep Grazing in Shrub-Infested Semi-arid Woodlands of New South Wales.

1986 ◽  
Vol 8 (2) ◽  
pp. 140 ◽  
Author(s):  
BH Downing
Keyword(s):  
Animal Species ◽  
New South ◽  
Economic Implications ◽  
Dietary Preferences ◽  
South Wales ◽  
Continuous Grazing ◽  
Local Observation ◽  
Grazing Systems ◽  
Western Division

Examination of data on dietary preferences of sheep, goats and cattle suggests that different grazing systems are desirable for each of the three major woodland types (belah-rosewood, mulga, poplar box) examined. Competition for herbs, frequently palatable to all animal species, indicates that goats and sheep are unsuitable for joint use either in heavily wooded country or where annual herbaceous production is less than 200 kg-ha. Supplementary feeding, fire and judicious stocking are proposed as a strategy for inducing goats to eat a proportion of unpalatable shrubs. The literature provides little helpful information on how rangelands in the Western Division should be managed. No reports are given on comparisons of grazing systems, such as rotational grazing, rotational resting, and continuous grazing. No guidance is given on grazing after burning of the rangeland. Recommendations are generally against the use of goats for control of woody plants, whereas local observation shows this to be an apparently effective practice. The recommendations are mostly based on experimental procedures which, although suitable for detecting animal dietary preferences in the short term, are less appropriate for investigation of the effects of grazing on range condition in the long term. Some suggestions are made towards a different approach for: investigating the effects of grazing by sheep and goats on rangeland condition, and the economic implications of this in terms of animal production.

Prehistoric aboriginal occupation of the rangelands: Interpreting the surface archaeological record of far western New South Wales, Australia.

2000 ◽  
Vol 22 (1) ◽  
pp. 44 ◽  
Author(s):  
SJ Holdaway ◽  
PC Fanning ◽  
DC Witter
Keyword(s):  
Arid Regions ◽  
Aboriginal People ◽  
New South ◽  
New South Wales ◽  
Landscape Archaeology ◽  
South Wales ◽  
Large Numbers ◽  
Different Parts ◽  
Stone Artefact

Recent erosion in arid regions of western NSW has exposed large areas that are scattered with stone artefacts manufactured by Aboriginal people in prehistory. These exposures offer an opportunity for archaeologists to study the artefacts abandoned by Aboriginal people through time and to compare those artefacts that accumulate in different parts of the landscape. To reconstruct the nature of prehistoric behaviour in the rangelands, two approaches are needed. First, the geomorphological context of the artefacts needs to be considered since exposure of the artefacts is a function of landscape history. Second, large areas (measured in thousands of square metres) and large numbers of artefacts need to be considered if patterns reflecting long-term abandonment behaviour by Aboriginal people are to be identified. This paper reports on the Western New South Wales Archaeological Program (WNSWAP) which was initiated in 1995 to study surface archaeology in the rangelands. Geomorphological studies are combined with artefact analysis using geographic information system software to investigate Aboriginal stone artefact scatters and associated features such as heat retainer hearths, in a landscape context. Results suggest that apparently random scatters of stone artefacts are in fact patterned in ways which inform on prehistoric Aboriginal settlement of the rangelands. Key words: Aboriginal stone artefacts; rangelands; landscape archaeology; geomorphology; GIs

Criminal mobility of outlaw motorcycle gangs in Australia

2021 ◽  
Author(s):  
Christopher Dowling ◽  
Anthony Morgan
Keyword(s):  
East Coast ◽  
New South ◽  
New South Wales ◽  
Gang Members ◽  
Opportunity Structures ◽  
Significant Challenge ◽  
Outlaw Motorcycle Gangs ◽  
South Wales

The criminal mobility of outlaw motorcycle gang (OMCG) members presents a significant challenge to Australian governments and police. Examining patterns of mobility can help to better understand the opportunity structures that underpin offending by OMCGs and to drive national collaborative responses to these gangs. This study examines the prevalence and patterns of criminal mobility in a sample of almost 4,000 OMCG members in more than 400 chapters. Around one in 10 members showed evidence of criminal mobility over the long term, while more than one-third of chapters comprised criminally mobile members. Criminally mobile gang members were heavily concentrated in a small number of chapters. Patterns of criminal mobility primarily involve movements into east coast jurisdictions. New South Wales and Queensland emerged as the most common destinations for criminally mobile OMCG members.

‘A military fervour akin to religious fanaticism’: Scottish Military Identity in the Australian Imperial Force

2016 ◽  
Author(s):  
Craig Tibbitts
Keyword(s):  
New South ◽  
New South Wales ◽  
First World War ◽  
Small Degree ◽  
World War ◽  
Peak Period ◽  
South Wales ◽  
The First World War ◽  
First World

This chapter highlights the long-term influence of Scottish military traditions and identity in Australia, dating back to the arrival of a battalion of the 73rd Highland Regiment in New South Wales in 1810. From the 1860s, several home-grown ‘Scottish’ volunteer militia units were established in the Australian colonies. This coincided with a peak period of Scottish emigration to Australia with some 265,000 settling between 1850 and 1914. With the outbreak of the First World War, Australia quickly raised a contingent to assist the Empire. Several Scottish-Australian militia regiments sought incorporation into the Australian Imperial Force (AIF) but with limited success. This chapter highlights how the existence of Scottish military identities conflicted with the desire of the AIF that its identity be entirely Australian as means of forging the identity of the new Commonwealth of Australia. At the same time, a small number of AIF units managed to maintain some small degree of Scottish flavour about them. Those such as the 4th, 5th and 56th Battalions which had many join en- masse from the pre-war ‘Scottish’ militia regiments, provide examples of how this identity survived and was influenced by some key officers and NCOs of Scots heritage.

Long-term benefits of limestone applications to soil properties and to cereal crop yields in southern and central New South Wales

2003 ◽  
Vol 43 (1) ◽  
pp. 71 ◽  
Author(s):  
M. K. Conyers ◽  
C. L. Mullen ◽  
B. J. Scott ◽  
G. J. Poile ◽  
B. D. Braysher
Keyword(s):  
Grain Yield ◽  
New South ◽  
New South Wales ◽  
Commercial Application ◽  
South Wales ◽  
Cereal Grain ◽  
Subsurface Soil ◽  
Acid Tolerant ◽  
The Cost

The cost of buying, carting and spreading limestone, relative to the value of broadacre crops, makes investment in liming a questionable proposition for many farmers. The longer the beneficial effects of limestone persist, however, the more the investment in liming becomes economically favourable. We re-established previous lime trials with the aim of measuring the long-term effects of limestone on surface acidity (pH run-down), subsurface acidity (lime movement) and grain yield. The study made use of experiments where there was adequate early data on soil chemical properties and cereal yields. We report data from 6 trials located at 4 sites between Dubbo and Albury in New South Wales. The rate of surface soil (0–10 cm) pH decline after liming was proportional to the pH attained 1 year after liming. That is, the higher the pH achieved, the more rapid the rate of subsequent pH decline. Since yields (product removal) and nitrification (also acid producing) may both vary with pH, the post-liming pH acts as a surrogate for the productivity and acid-generating rate of the soil–plant system. The apparent lime loss rate of the surface soils ranged from the equivalent of nearly 500 kg limestone/ha.year at pH approaching 7, to almost zero at pH approaching 4. At commercial application rates of 2–2.5 t/ha, the movement of alkali below the layer of application was restricted. However, significant calcium (Ca) movement sometimes occurred to below 20 cm depth. At rates of limestone application exceeding the typical commercial rate of 2.5 t/ha, or at surface pH greater than about 5.5, alkali and Ca movement into acidic subsurface soil was clearly observed. It is therefore technically feasible to ameliorate subsurface soil acidity by applying heavy rates of limestone to the soil surface. However, the cost and risks of this option should be weighed against the use of acid-tolerant cultivars in combination with more moderate limestone rates worked into the surface soil.There was a positive residual benefit of limestone on cereal grain yield (either barley, wheat, triticale, or oats) at all sites in both the 1992 and 1993 seasons. While acid-tolerant cultivars were less lime responsive than acid-sensitive ones, the best yields were generally obtained using a combination of liming and acid-tolerant cultivars.The long-term residual benefits of limestone were shown to extend for beyond 8–12 years and indicate that liming should be profitable in the long term.

Response of oats to seeding rate and nitrogen in the southern wheat belt of New South Wales

1974 ◽  
Vol 14 (67) ◽  
pp. 231 ◽  
Author(s):  
OR Southwood ◽  
F Mengersen ◽  
PJ Milham
Keyword(s):  
Nitrate Nitrogen ◽  
New South ◽  
Nitrogen Concentration ◽  
New South Wales ◽  
Fertilizer Application ◽  
Grazing Management ◽  
Grain Production ◽  
Seeding Rate ◽  
South Wales ◽  
Oat Cultivars

The effect of three rates of nitrogen (22.4, 44.8 and 89.6 kgNha-1 as anhydrous ammonia) and three seeding rates (67.3, 100.9, and 134.5 kg ha-1) on forage and grain production of two oat cultivars and on herbage nitrate-nitrogen concentration, was assessed at three sites in the southern New South Wales wheat belt. When oats were sown after two or three consecutive wheat crops nitrogen at 22.4 kg ha-1 was optimal for both forage and grain production. Herbage growth was best at the highest seeding rate (134.5 kg ha-1) but grain production was not influenced by seeding rate. Herbage growth of the oat cultivars Cooba and Coolabah was similar, but grain yields were higher from the latter. Herbage nitrate nitrogen increased linearly with nitrogen fertilizer application, levels that could be toxic to animals occurring in June. Cautious grazing management may be required during this period.

Vegetation changes after fire on two land systems in arid North-west New South Wales.

1985 ◽  
Vol 7 (2) ◽  
pp. 80 ◽  
Author(s):  
WE Mulham
Keyword(s):  
Arid Zone ◽  
New South ◽  
New South Wales ◽  
Summer Rainfall ◽  
Botanical Composition ◽  
Dune System ◽  
Erosion Risk ◽  
North West ◽  
South Wales

Following a sequence of favourable years in which pasture growth over much of the arid zone of Australia reached very high ievels, controlled burns were carried out on two contrasting vegetation types in the extreme north-west of New South Wales. A wheei-point apparatus was used to measure subse- quent changes in botanical composition and foliage cover over a four year period. On a pasture periodically dominated by Mitchell grass (Astrebla spp.) burning while growing conditions were favourable resulted in only a small long- term decrease in the cover of Mitchell grass. In the short-term all chenopod species were eliminated and a wider range and greater abundance of annual forbs were promoted in the following spring. On a similar area burned by wildfire in a year of low summer rainfall the response from Mitchell grass was much poorer and botanical composition of the pasture present in the following spring differed from that which developed in the spring following the controlled burn. It also differed from that of the unburnt pasture. The major differences were due to the response of forb species and are attributed to variation in seasonal rainfall. On a dune-system pasture the dominant grasses were species of Aristida and Enneapogon. These are relatively short-lived and appear to have little ability to regrow from the butt after fire. Their slow regeneration after the burn was reflected in the substantial increase in relative abundance of perennial forbs in the following autumn, and of annual forbs the next spring. Although fire appeared to have no long-term effect on the pasture it dramatically reduced tree and shrub numbers. It is suggested that during years in which abnormal quantities of Mitchell grass are present in this region, controlled burning could be a useful form of management. A mosaic of patches burnt at different times would reduce the potential for wide-scale wildfires, provide refuge areas for stock and wildlife in the event of wildfire, and promote a wider choice of plant material for grazing animals. However, in dune-systems vegetation, removal of the pasture cover and reduction of the tree and shrub density would constitute an erosion risk.

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