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Agroecology: the ecology of sustainable food systems - download pdf or read online

By Stephen R. Gliessman

ISBN-10: 1498728464

ISBN-13: 9781498728461

Offering the theoretical and conceptual framework for this starting to be box, 'Agroecology' develops the certainty of environmental elements and complexities affecting agricultural plants and animals. --Provided by means of publisher.


delivering the theoretical and conceptual framework for this growing to be box, 'Agroecology' develops the certainty of environmental components and complexities affecting agricultural plants and animals. Read more...

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Extra info for Agroecology: the ecology of sustainable food systems

Example text

Can an Alternative Food System Feed Everyone? Advocates for industrial agriculture argue that the only way to satisfy the food needs of the expanding world population is to continue to develop new agricultural technologies—­ particularly GM crop varieties—that will increase yields, reduce insect damage, and eliminate competition from weeds. They dismiss alternative, sustainable, and ecologically based systems as inadequate to the task of growing the needed amount of food. This view is mistaken on at least two accounts.

And using reduced-tillage systems to limit the problems caused by intensive tillage does nothing to break this dependency because it usually requires that intensive herbicide use take the place of tillage as a weed control method. Agriculture cannot be sustained as long as this dependence on external inputs remains. First, the natural resources from which many of the inputs are derived are nonrenewable and their supplies finite. Second, dependence on external inputs leaves farmers, regions, and whole countries vulnerable to supply shortages, market fluctuations, and price increases.

The emphasis of these systems is definitely not on monoculture yield maximization nor the market. A comprehensive 2011 report, presented before the UN Human Rights Council and based on an extensive review of recent scientific literature, showed that agroecologically guided restructuring of agroecosystems has the capability of doubling food production in entire regions within 10 years, while mitigating climate change and alleviating rural poverty (De Schutter 2011). Role of Agroecology Many scientists, researchers, and educators in the field of agroecology, and their colleagues in disciplines like agronomy, have long believed that their role is to come up with agricultural methods and systems that are more sustainable, more environmentally friendly, less input dependent, and less technology intensive than those of industrial agriculture.

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Agroecology: the ecology of sustainable food systems by Stephen R. Gliessman

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