Soil Survey of Pittsylvania County, and the City of Danville, Virginia
Author | : United States. Soil Conservation Service |
Publisher | : |
Total Pages | : 213 |
Release | : 1994 |
Genre | : |
ISBN | : |
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Author | : United States. Soil Conservation Service |
Publisher | : |
Total Pages | : 213 |
Release | : 1994 |
Genre | : |
ISBN | : |
Author | : John C. Nicholson |
Publisher | : |
Total Pages | : 298 |
Release | : 1994 |
Genre | : Soil surveys |
ISBN | : |
Author | : Drew A. Swanson |
Publisher | : Yale University Press |
Total Pages | : 359 |
Release | : 2014-08-12 |
Genre | : Nature |
ISBN | : 030020681X |
Drew A. Swanson has written an “environmental” history about a crop of great historical and economic significance: American tobacco. A preferred agricultural product for much of the South, the tobacco plant would ultimately degrade the land that nurtured it, but as the author provocatively argues, the choice of crop initially made perfect agrarian as well as financial sense for southern planters. Swanson, who brings to his narrative the experience of having grown up on a working Virginia tobacco farm, explores how one attempt at agricultural permanence went seriously awry. He weaves together social, agricultural, and cultural history of the Piedmont region and illustrates how ideas about race and landscape management became entangled under slavery and afterward. Challenging long-held perceptions, this innovative study examines not only the material relationships that connected crop, land, and people but also the justifications that encouraged tobacco farming in the region.
Author | : David E. Reisner |
Publisher | : CRC Press |
Total Pages | : 1370 |
Release | : 2014-09-24 |
Genre | : Science |
ISBN | : 0415621291 |
The world’s fresh water supplies are dwindling rapidly—even wastewater is now considered an asset. By 2025, most of the world's population will be facing serious water stresses and shortages. Aquananotechnology: Global Prospects breaks new ground with its informative and innovative introduction of the application of nanotechnology to the remediation of contaminated water for drinking and industrial use. It provides a comprehensive overview, from a global perspective, of the latest research and developments in the use of nanotechnology for water purification and desalination methods. The book also covers approaches to remediation such as high surface area nanoscale media for adsorption of toxic species, UV treatment of pathogens, and regeneration of saturated media with applications in municipal water supplies, produced water from fracking, ballast water, and more. It also discusses membranes, desalination, sensing, engineered polymers, magnetic nanomaterials, electrospun nanofibers, photocatalysis, endocrine disruptors, and Al13 clusters. It explores physics-based phenomena such as subcritical water and cavitation-induced sonoluminescence, and fog harvesting. With contributions from experts in developed and developing countries, including those with severe contamination, such as China, India, and Pakistan, the book’s content spans a wide range of the subject areas that fall under the aquananotechnology banner, either squarely or tangentially. The book strongly emphasizes sorption media, with broad application to a myriad of contaminants—both geogenic and anthropogenic—keeping in mind that it is not enough for water to be potable, it must also be palatable.
Author | : |
Publisher | : |
Total Pages | : 482 |
Release | : 1968 |
Genre | : Experimental watershed areas |
ISBN | : |
This publication presents annual basic data on monthly precipitation and runoff; long-term monthly precipitation means for the locality; annual maximum discharges and volumes of runoff; daily air temperature, precipitation, and discharge (for some areas); and selected runoff events, with associated data on rainfall, land use, and antecedent conditions for agricultural watersheds where research studies were in progress during the calendar year 1962.