Rangelands: A Resource Under Siege: Proceedings of the Second Inter Rangeland CongressP. J. Joss, P. W. Lynch, O. B. Williams Cambridge University Press, 1986 - 634 pages This volume comprises the proceedings of the Second International Rangelands Congress held in Adelaide, Australia in May 1984, and includes some 350 contributions drawn from 43 different countries. The Congress addressed the problem of the conflict between land-users and the degradation of this valuable resource. Some 40% of the Earth's land surface is and or alpine and therefore unsuitable for agricultural cultivation. Collectively, these lands are known as rangelands and in their natural state they constitute a habitat for grazing animals, both domestic and wild. Despite their low productivity, rangelands have been used for thousands of years as a source of food and fibre, but other uses such as mining, tourism, recreation and conservation are exerting increasing demands. The result is often conflict between land-users and degradation of the resource. |
Contents
xii | 52 |
Grazing Industries | 85 |
Dr J K Marshall | 145 |
Primary Producers | 158 |
Mr T D Mitchell | 181 |
Management of Grazing Systems | 205 |
Technological Improvements of Arid | 257 |
Unesco Man and the Biosphere Program | 323 |
Animal Production | 332 |
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Common terms and phrases
Africa Agriculture animal production annual areas arid Atriplex Australia HIGHLIGHT average beef biomass camels cattle changes communities competition conservation crop defoliation density diet drought dry matter dry season ecological economic ecosystems effect environment environmental erosion establishment eucalypts factors feed fertilizer forage germination goats grassland grazing pressure grazing systems growth herbaceous herbage herd important improved increase IPAL Kenya kg/ha land leaf legumes LITERATURE CITED livestock Maasai moisture Morocco native nitrogen nomadic Northern Great Plains nutrient nutrition paddocks pastoralists pasture perennial grasses period plant plots population potential protein Queensland rainfall ranches range management rangelands reduced region regrowth Rendille response revegetation rotational grazing savanna seed seedlings semi-arid sheep shrublands shrubs soil South South Wales species stocking rate strategies surface Table treatments trees ungulates United utilization variable vegetation winter woody yield zone