Early American Soil Conservationists. [With portraits.].
Author : Angus MACDONALD (of the U.S. Soil Conservation Service.)
Publisher :
Page : 63 pages
File Size : 45,3 MB
Release : 1941
Category :
ISBN :
Author : Angus MACDONALD (of the U.S. Soil Conservation Service.)
Publisher :
Page : 63 pages
File Size : 45,3 MB
Release : 1941
Category :
ISBN :
Author : Douglas Helms
Publisher :
Page : 178 pages
File Size : 25,63 MB
Release : 1992
Category : Soil conservation
ISBN :
Author : David R. Montgomery
Publisher : Univ of California Press
Page : 299 pages
File Size : 20,79 MB
Release : 2007-05-14
Category : Nature
ISBN : 0520933168
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.
Author : United States. Department of Agriculture. Motion Picture Service
Publisher :
Page : 328 pages
File Size : 22,98 MB
Release :
Category : Agriculture
ISBN :
Set includes revised editions of some issues.
Author :
Publisher :
Page : 902 pages
File Size : 24,9 MB
Release : 1969-08
Category : Erosion
ISBN :
Author : United States. Office of Education
Publisher :
Page : 1248 pages
File Size : 34,25 MB
Release : 1950
Category : Education
ISBN :
Author :
Publisher :
Page : 696 pages
File Size : 12,90 MB
Release : 1977
Category : United States
ISBN :
Author :
Publisher :
Page : 348 pages
File Size : 13,37 MB
Release : 1945
Category : Libraries
ISBN :
Author : Library of Congress
Publisher :
Page : 712 pages
File Size : 13,28 MB
Release : 1968
Category : Filmstrips
ISBN :
Author : United States Information Agency
Publisher :
Page : 480 pages
File Size : 25,89 MB
Release : 1959
Category : Documentary films
ISBN :