Download Agroecology: The Ecology of Sustainable Food Systems by Stephen R. Gliessman PDF

By Stephen R. Gliessman

ISBN-10: 0849328454

ISBN-13: 9780849328459

The writer in actual fact delineates the significance of utilizing an surroundings framework for choosing if a specific agricultural perform, enter, or administration choice contributes or detracts from sustainability. He explains how the framework offers the ecological foundation for the functioning of the selected administration procedure over the long term. He additionally examines approach point interactions, stressing the necessity for realizing the emergent features of populations, groups, and ecosystems and their roles in sustainable agriculture. utilizing examples of farming structures in a wide array of ecological stipulations, the publication demonstrates find out how to use an atmosphere method of layout and deal with agroecosystems for sustainability.

Providing the theoretical and conceptual framework for this regularly evolving box, Agroecology: The Ecology of Sustainable meals structures, moment version explores environmental elements and complexities affecting agricultural vegetation and animals. thoroughly revised, up-to-date, and remodeled, the second one variation comprises new facts, new readings, new matters and case reports, and new ideas. It comprises thoroughly new chapters, one at the position of farm animals animals in agroecosystems and one at the cultural and group points of sustainable meals systems.

The writer essentially delineates the significance of utilizing an environment framework for picking if a selected agricultural perform, enter, or administration determination contributes or detracts from sustainability. He explains how the framework offers the ecological foundation for the functioning of the selected administration procedure over the long term. He additionally examines process point interactions, stressing the necessity for realizing the emergent traits of populations, groups, and ecosystems and their roles in sustainable agriculture. utilizing examples of farming platforms in a wide array of ecological stipulations, the booklet demonstrates the way to use an surroundings method of layout and deal with agroecosystems for sustainability.

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Additional resources for Agroecology: The Ecology of Sustainable Food Systems

Example text

Ultimately, ecological knowledge of agroecosystem sustainability must reshape humanity’s approach to growing and raising food in order for sustainable food systems to be achieved worldwide. THE HISTORY OF AGROECOLOGY The two sciences from which agroecology is derived — ecology and agronomy — had an uneasy relationship during the 20th century. Ecology had been concerned primarily with the study of natural systems, whereas agronomy dealt with applying the methods of scientific investigation to the practice of agriculture.

From this foundation we can move towards the social and economic changes that promote the sustainability of all sectors of the food system. WHAT IS SUSTAINABILITY? Sustainability means different things to different people, but there is general agreement that it has an ecological basis. In the most general sense, sustainability is a version of the concept of sustained yield — the condition of being able to harvest biomass from a system in perpetuity because the ability of the system to renew itself or be renewed is not compromised.

Most of the land on the Earth’s surface that is amenable to agriculture has already been converted to human use, and of this chunk of land, the proportion that can be farmed is actually shrinking due to urban expansion, soil degradation, and desertification. In the coming years, the growth of cities and industrialization will continue to claim more agricultural land — and often the best land, too. In addition, climate change threatens to take large areas of agricultural land out of production, especially in the tropics, where warming and drying may accelerate desertification in some areas and rising sea levels will inundate low-lying land.

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