Drainage Reclamation In Tennessee

Author : Geo H. Ashley
Publisher :
ISBN 13 : 9781332325764
Total Pages : 84 pages
Book Rating : 4.3/5 (257 download)

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Download or read book Drainage Reclamation in Tennessee, First Papers written by Geo H. Ashley and published by . This book was released on 2015-08-05 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Drainage Reclamation in Tennessee, First Papers: Drainage Problems in Tennessee Value of Alluvial Lands. In all places, and at all times, it has been true that the alluvial lands excel all others in fertility and durability. The valley of the Nile, long known as the grainery of the world, is but one example out of thousands. The soil of the bottom lands of the rivers is made up of a mixture of all of the materials derived from the various rocks exposed to weathering in the valley above. At the same time with every flood large quantities of leaves and other .vegetation is washed over the flooded lands and deposited with the sand, clay, silt, or other material. These deposits are built up with every flood, gaining in depth from year to year. Need of Their Protection. But it has also been true in most places that the same floods that build up and render these bottom lands fertile have prevented their use for agriculture to a greater or less degree. Where the overflow is not excessive and does not come when crops arc growing, it may be possible to carry on a precarious form of agriculture, the fat years making up for the lean years when crops arc ruined by overflow. But in most countries, both ancient and modern, these rich bottom lands have been cultivated only after they have been protected from the ravages of floods, either by digging drainage channels or ditches, or by raising levees, or both. The valleys of the Nile, Tigris, Euphrates and Kiang rivers, the English "Fens," and the coastal lands of Holland, arc well known examples of such protected or reclaimed lands. Reclamation of Glaciated Area. The northern United States within the area covered by the great glaciers of the ice age is full of marshy areas formed by irregular dumping of the dirt pushed or carried by the glaciers. In the early times these places were avoided by the settlers as the breeding places for malaria, as valueless for agriculture, as places in which to lose cattle, fit only to harbor wild animals. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.