Le sol, la terre et les champs : Pour retrouver une agriculture saine

http://www.sangdelaterre.fr/index.php?art=21&th=135

 Auteur : Claude et Lydia Bourguignon

L'agriculture aujourd'hui est dans une impasse. L'intensification n'a pas été capable d'arrêter la famine mais elle a épuisé des millions d'hectares de sol et dégradé la qualité nutritive des aliments.

Fondée sur une conception très réductrice du sol considéré comme un support inerte l'agronomie n'a pas su développer une agriculture durable, elle s'enlise dans les OGM qui rendent les agriculteurs prisonniers des semenciers ainsi que dans les agro-carburants qui provoquent une hausse brutale du prix des denrées agricoles.

S'appuyant sur les expériences réussies d'autre forme d'agriculture dite biologique et sur les dernières recherches en microbiologie du sol, Claude et Lydia Bourguignon proposent dans ce livre une nouvelle voie pour l'agriculture du XXIe siècle.

Dans cette nouvelle édition revue et augmentée de cet ouvrage de référence, les auteurs, remettant en cause le labour, exposent une nouvelle évolution verte, qui par l'application des lois de la biologie des sols, permet de restaurer une fertilité durable grâce à des techniques comme le semis direct sous couvert, le BRF, le compost, etc.

David R. Montgomery - Dirt : The Erosion of Civilizations, with a New Preface

http://www.ucpress.edu/book.php?isbn=9780520272903

Dirt, soil, call it what you want—it's everywhere we go. It is the root of our existence, supporting our feet, our farms, our cities. This fascinating yet disquieting book finds, however, that we are running out of dirt, and it's no laughing matter. An engaging natural and cultural history of soil that sweeps from ancient civilizations to modern times, Dirt: The Erosion of Civilizations explores the compelling idea that we are—and have long been—using up Earth's soil. Once bare of protective vegetation and exposed to wind and rain, cultivated soils erode bit by bit, slowly enough to be ignored in a single lifetime but fast enough over centuries to limit the lifespan of civilizations. A rich mix of history, archaeology and geology, Dirt traces the role of soil use and abuse in the history of Mesopotamia, Ancient Greece, the Roman Empire, China, European colonialism, Central America, and the American push westward. We see how soil has shaped us and we have shaped soil—as society after society has risen, prospered, and plowed through a natural endowment of fertile dirt. David R. Montgomery sees in the recent rise of organic and no-till farming the hope for a new agricultural revolution that might help us avoid the fate of previous civilizations.

David R. Montgomery - Dirt : The Erosion of Civilizations

http://www.ucpress.edu/book.php?isbn=9780520258068

Dirt, soil, call it what you want—it's everywhere we go. It is the root of our existence, supporting our feet, our farms, our cities. This fascinating yet disquieting book finds, however, that we are running out of dirt, and it's no laughing matter. An engaging natural and cultural history of soil that sweeps from ancient civilizations to modern times, Dirt: The Erosion of Civilizations explores the compelling idea that we are—and have long been—using up Earth's soil. Once bare of protective vegetation and exposed to wind and rain, cultivated soils erode bit by bit, slowly enough to be ignored in a single lifetime but fast enough over centuries to limit the lifespan of civilizations. A rich mix of history, archaeology and geology, Dirt traces the role of soil use and abuse in the history of Mesopotamia, Ancient Greece, the Roman Empire, China, European colonialism, Central America, and the American push westward. We see how soil has shaped us and we have shaped soil—as society after society has risen, prospered, and plowed through a natural endowment of fertile dirt. David R. Montgomery sees in the recent rise of organic and no-till farming the hope for a new agricultural revolution that might help us avoid the fate of previous civilizations.

David R. Montgomery, Professor of Earth and Space Sciences at the University of Washington

Dirt: The Erosion of Civilization

Dr. David Montgomery, professor of geomorphology, University of Washington discusses the problem of global soil degradation and soil erosion and why it is one of the most significant environmental crises that face our species and planet for the next 400 years to come.

Dirt: The Erosion of Civilizations by David R. Montgomery

Dirt, soil, call it what you want—it's everywhere we go. It is the root of our existence, supporting our feet, our farms, our cities. This fascinating yet disquieting book finds, however, that we are running out of dirt, and it's no laughing matter. An engaging natural and cultural history of soil that sweeps from ancient civilizations to modern times, Dirt: The Erosion of Civilizations explores the compelling idea that we are—and have long been—using up Earth's soil. Once bare of protective vegetation and exposed to wind and rain, cultivated soils erode bit by bit, slowly enough to be ignored in a single lifetime but fast enough over centuries to limit the lifespan of civilizations. A rich mix of history, archaeology and geology, Dirt traces the role of soil use and abuse in the history of Mesopotamia, Ancient Greece, the Roman Empire, China, European colonialism, Central America, and the American push westward. We see how soil has shaped us and we have shaped soil—as society after society has risen, prospered, and plowed through a natural endowment of fertile dirt. David R. Montgomery sees in the recent rise of organic and no-till farming the hope for a new agricultural revolution that might help us avoid the fate of previous civilizations.

Dave Montgomery at Edmonds Community College

Prof. Dave Montgomery gives his talk 'Dirt: The Erosion of Civilizations' at Edmonds Community College in April 2010. Prof. David Montgomery is a geomorphologist who has discovered that the roughly 3 foot-deep skin of our planet is being slowly eroded away, and we are in danger of suffering the same fate as the fallen empires of Mesopotamia, Ancient Greece, and Rome. To learn more, visit: http://www.samaralectures.com/speakers/david-montgomery/