par
Healey, Justin.
Numéro de rayon préféré
333.9100994 WAT
Date de publication
2009
Résumé
"Water is a precious and increasingly scarce resource, particularly in drought-stricken Australia. How we manage our rivers systems and water usage has enormous impacts on our economy, environment and way of life. The federal Government has recently clinched agreement with the states to hand control of the Murray-Darling Basin to a single independent body, but has argued that without rain authorities are powerless to save the stricken river system. What is the current state of Australias water resources and how can we achieve sustainability? This book focuses on national water reform plans, domestic water-saving initiatives, and improvements to water management in agriculture and business"--Provided by publisher.
Format :
Livres
Pertinence:
77635.5156
par
Healey, Justin.
Numéro de rayon préféré
333.7313 22
Date de publication
2011
Résumé
Almost two-thirds of land in Australia has been modified for human use, primarily for grazing on natural vegetation. Clearing of native vegetation continues to occur for agriculture, plantation forestry, and urban development. Over the past two centuries, as land use has intensified for a growing population in this arid land, vast areas of native vegetation have been cleared or degraded, resulting in adverse affects on biodiversity, soil and water quality and the spread of weeds, feral pests and diseases. This book examines the damaging impacts of Australia's land use and agricultural activity.
Format :
Ressources électroniques
Pertinence:
63392.5391
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par
Healey, Justin.
Numéro de rayon préféré
333.9515 AUS
Date de publication
2007
Résumé
Biodiversity is usually explored at three levels which work together to create the complexity of life on our planet genetic diversity, species diversity and ecosystem diversity. It is estimated that there are 13.6 million species of plants, animals and micro-organisms on Earth. Australia has about one million of these over 7% of the worlds total and more than twice the number of species in Europe and North America combined. As a developed nation, Australia has a special responsibility for biodiversity conservation and management. Of global concern are the environmental threats of loss of habitat and loss of species caused by greenhouse pollution, climate change, extinction and overpopulation. Current biodiversity conservation practice clearly acknowledges that it is far more efficient to conserve whole ecosystems which encompass biodiversity at all levels, rather than focus on a few highly visible and popular species in isolation. What are the features of Australia's biodiversity and what are we currently doing to conserve it for future generations? Can we achieve ecological sustainability?
Format :
Livres
Pertinence:
0.9075
par
Healey, Justin.
Numéro de rayon préféré
613.2 FOO
Date de publication
2008
Résumé
"A healthy diet should include a wide variety of nutritious foods, including plenty of breads and cereals, vegetables, legumes and fruit, low-salt foods and small amounts of foods which contain added sugars. Consumers have a huge variety of foods to choose from, but are often bewildered trying to determine their nutritional value. Food and Nutrition explores the types of foods eaten by Australians, how to promote healthy eating habits, and food safety and labelling issues. Weight management, digestive health, food additives, processed food, food allergies and intolerances, organic foods, GM foods ... this book contains plenty of helpful facts on food for thought."--Provided by publisher.
Format :
Livres
Pertinence:
0.0811
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