Read e-book online Agroecology: The Ecology of Sustainable Food Systems PDF

By Stephen R. Gliessman

ISBN-10: 0849328454

ISBN-13: 9780849328459

The writer basically delineates the significance of utilizing an surroundings framework for deciding on if a specific 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 approach over the long term. He additionally examines procedure 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 structures in a vast array of ecological stipulations, the booklet demonstrates the best way to use an atmosphere method of layout and deal with agroecosystems for sustainability.

Providing the theoretical and conceptual framework for this continuously evolving box, Agroecology: The Ecology of Sustainable meals structures, moment version explores environmental elements and complexities affecting agricultural plants and animals. thoroughly revised, up to date, and remodeled, the second one variation includes new info, new readings, new matters and case stories, and new innovations. It contains thoroughly new chapters, one at the position of farm animals animals in agroecosystems and one at the cultural and neighborhood points of sustainable nutrition systems.

The writer sincerely delineates the significance of utilizing an atmosphere framework for settling on 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 method over the long term. He additionally examines process 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 platforms in a vast array of ecological stipulations, the publication demonstrates the right way to use an environment method of layout and deal with agroecosystems for sustainability.

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Extra info for Agroecology: The Ecology of Sustainable Food Systems

Sample text

First, much of this land is tropical rain forest, the soil of which cannot support continual agricultural production. Second, this land is increasingly being recognized for its value to global biological diversity, the carbon dioxide balance of the atmosphere, and maintenance of the Earth’s climatic patterns. Because of this recognition and the efforts of environmental groups, a large proportion of the planet’s remaining wild lands will be off-limits to agricultural conversion. Exacerbating the problem of limited arable land is a trend toward meat-intensive diets worldwide.

S. sorghum crop, causing an estimated $100 million in damage. The next year, insecticides were used to control the greenbugs at a cost of about $50 million. Soon thereafter, however, researchers discovered a sorghum variety that carried resistance to the greenbugs. No one had known of the greenbug resistance, but it was there nonetheless. This variety was used to create a hybrid that was grown extensively and not eaten by greenbugs, making the use of pesticides unnecessary. Such pest resistance is common in domesticated plants, “hiding” in the genome but waiting to be used by plant breeders.

2 The Agroecosystem Concept An agroecosystem is a site or integrated region of agricultural production — a farm, for example — understood as an ecosystem. The agroecosystem concept provides a framework with which to analyze food production systems as wholes, including their complex sets of inputs and outputs and the interconnections of their component parts. Because the concept of the agroecosystem is based on ecological principles and our understanding of natural ecosystems, the first topic of discussion in this chapter is the ecosystem.

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


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