American National Biography
Author | : John Arthur Garraty |
Publisher | : |
Total Pages | : 968 |
Release | : 1999 |
Genre | : |
ISBN | : 9780195127911 |
Download Reclamation Of The Fresno Type Of Black Alkali Soil Classic Reprint full books in PDF, epub, and Kindle. Read online free Reclamation Of The Fresno Type Of Black Alkali Soil Classic Reprint ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Author | : John Arthur Garraty |
Publisher | : |
Total Pages | : 968 |
Release | : 1999 |
Genre | : |
ISBN | : 9780195127911 |
Author | : Hans Jenny |
Publisher | : Springer Science & Business Media |
Total Pages | : 392 |
Release | : 2012-12-06 |
Genre | : Technology & Engineering |
ISBN | : 1461261120 |
change is simply described by the rate of income and rate of loss. Our home's energy budget, our firm's inventory, our nation's debt, and humanity's numbers all have accounts that change at rates that are equal to the inputs minus the outputs. Jenny's "system view" of the soil was carried into the fertile fields of Midwestern American prairies from the laboratories of Switzerland in the late 1920s. Jenny's rate equations provided the other paradigm or world view that, I recall, brought us to the threshold of systems ecology as it later evolved in the second half of the twentieth century. As if world renown in the specialties of pedology and soil chemistry were not enough for one lifetime, excerpts below remind us that Hans Jenny has also been a perceptive outdoor field ecologist since his early Alpine expeditions with Braun Blanquet in the mid 1920s. Jenny's ecosystem studies in the pygmy forest, a further classic example of a soil-plant system "run down" over hundreds of thousands of years since its origin, continue to occupy some of the vigorous retirement time near his farm in Mendocino County. But each specific, quantitative case study, and each research area conserved (with additional hard work) for further study by future generations, fits into Jenny's coherent world view. It is that view, and its legacies of discovery and of tangible landscape preserves, which we are privileged to share with their originator in this volume.
Author | : William D. Rowley |
Publisher | : Government Printing Office |
Total Pages | : 572 |
Release | : 2006 |
Genre | : Business & Economics |
ISBN | : |
On cover: Reclamation, Managing Water in the West. Tells the history of the Bureau of Reclamation from 1902-1945.
Author | : Philip Garone |
Publisher | : University of California Press |
Total Pages | : 440 |
Release | : 2020-03-03 |
Genre | : Nature |
ISBN | : 0520355571 |
This is the first comprehensive environmental history of California’s Great Central Valley, where extensive freshwater and tidal wetlands once provided critical habitat for tens of millions of migratory waterfowl. Weaving together ecology, grassroots politics, and public policy, Philip Garone tells how California’s wetlands were nearly obliterated by vast irrigation and reclamation projects, but have been brought back from the brink of total destruction by the organized efforts of duck hunters, whistle-blowing scientists, and a broad coalition of conservationists. Garone examines the many demands that have been made on the Valley’s natural resources, especially by large-scale agriculture, and traces the unforeseen ecological consequences of our unrestrained manipulation of nature. He also investigates changing public and scientific attitudes that are now ushering in an era of unprecedented protection for wildlife and wetlands in California and the nation.
Author | : Peter Waller |
Publisher | : Springer |
Total Pages | : 747 |
Release | : 2015-11-18 |
Genre | : Science |
ISBN | : 3319056999 |
This textbook focuses specifically on the combined topics of irrigation and drainage engineering. It emphasizes both basic concepts and practical applications of the latest technologies available. The design of irrigation, pumping, and drainage systems using Excel and Visual Basic for Applications programs are explained for both graduate and undergraduate students and practicing engineers. The book emphasizes environmental protection, economics, and engineering design processes. It includes detailed chapters on irrigation economics, soils, reference evapotranspiration, crop evapotranspiration, pipe flow, pumps, open-channel flow, groundwater, center pivots, turf and landscape, drip, orchards, wheel lines, hand lines, surfaces, greenhouse hydroponics, soil water movement, drainage systems design, drainage and wetlands contaminant fate and transport. It contains summaries, homework problems, and color photos. The book draws from the fields of fluid mechanics, soil physics, hydrology, soil chemistry, economics, and plant sciences to present a broad interdisciplinary view of the fundamental concepts in irrigation and drainage systems design.
Author | : |
Publisher | : Springer Science & Business Media |
Total Pages | : 360 |
Release | : 2012-12-06 |
Genre | : Technology & Engineering |
ISBN | : 1461233224 |
The purpose of Advances in Soil Science is to provide a forum for leading scientists to analyze and summarize the available scientific information on a subject, assessing its importance and identifying additional research needs. A wide array of subjects has been addressed by authors from many countries in the initial ten volumes of the series. The quick acceptance of the series by both authors and readers has been very gratifying and confirms our perception that a need did exist for a medium to fill the gap between the scientific journals and the comprehensive reference books. This volume is the first of the series devoted entirely to a single topic soil degradation. Future volumes will include both single-topic volumes as well as volumes containing reviews of different topics of soil science, as in the case of the first ten volumes. There are increasing concern and attention about managing natural re sources, particularly soil and water. Soil degradation is clearly one of the most pressing problems facing mankind. Although the spotlight regarding soil degradation in recent years has focused on Africa, concern about the degradation of soil and water resources is worldwide. The widespread con cern about global environmental change is also being linked to severe problems of soil degradation. Therefore, we are indeed pleased that the first volume of the series devoted to a single topic addresses such an impor tant issue. The current volume is also the first of the series involving a guest editor.
Author | : Claudia C. Faunt |
Publisher | : Geological Survey |
Total Pages | : 0 |
Release | : 2009 |
Genre | : Nature |
ISBN | : 9781411325159 |
Author | : Jon Krakauer |
Publisher | : Anchor |
Total Pages | : 241 |
Release | : 2009-09-22 |
Genre | : Biography & Autobiography |
ISBN | : 0307476863 |
NATIONAL BESTSELLER • In April 1992 a young man from a well-to-do family hitchhiked to Alaska and walked alone into the wilderness north of Mt. McKinley. Four months later, his decomposed body was found by a moose hunter. This is the unforgettable story of how Christopher Johnson McCandless came to die. "It may be nonfiction, but Into the Wild is a mystery of the highest order." —Entertainment Weekly McCandess had given $25,000 in savings to charity, abandoned his car and most of his possessions, burned all the cash in his wallet, and invented a new life for himself. Not long after, he was dead. Into the Wild is the mesmerizing, heartbreaking tale of an enigmatic young man who goes missing in the wild and whose story captured the world’s attention. Immediately after graduating from college in 1991, McCandless had roamed through the West and Southwest on a vision quest like those made by his heroes Jack London and John Muir. In the Mojave Desert he abandoned his car, stripped it of its license plates, and burned all of his cash. He would give himself a new name, Alexander Supertramp, and, unencumbered by money and belongings, he would be free to wallow in the raw, unfiltered experiences that nature presented. Craving a blank spot on the map, McCandless simply threw the maps away. Leaving behind his desperate parents and sister, he vanished into the wild. Jon Krakauer constructs a clarifying prism through which he reassembles the disquieting facts of McCandless's short life. Admitting an interest that borders on obsession, he searches for the clues to the drives and desires that propelled McCandless. When McCandless's innocent mistakes turn out to be irreversible and fatal, he becomes the stuff of tabloid headlines and is dismissed for his naiveté, pretensions, and hubris. He is said to have had a death wish but wanting to die is a very different thing from being compelled to look over the edge. Krakauer brings McCandless's uncompromising pilgrimage out of the shadows, and the peril, adversity, and renunciation sought by this enigmatic young man are illuminated with a rare understanding—and not an ounce of sentimentality. Into the Wild is a tour de force. The power and luminosity of Jon Krakauer's stoytelling blaze through every page.
Author | : Istvan Szabolcs |
Publisher | : Springer |
Total Pages | : 296 |
Release | : 1989 |
Genre | : Nature |
ISBN | : |
Author | : Mary Cone |
Publisher | : BoD – Books on Demand |
Total Pages | : 286 |
Release | : 2024-06-24 |
Genre | : Fiction |
ISBN | : 3385528003 |
Reprint of the original, first published in 1876.