Download or read book A Survey and Discussion of Lysimeters and a Bibliography on Their Construction and Performance written by Helmut Kohnke and published by . This book was released on 1940 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the great impetus that soil conservation and flood-control work have given to the study of the relations of water to soil, lysimeters have received wider attention during the past decade than at any previous time. They have been used for at least two and a half centuries in studies of the percolation of water through the soil. The purpose of such studies may be strictly hydrological, attention being given only to the rate and amount of the percolate. In most of the more recent investigations the chemical composition of the percolate is analyzed, generally as a part of the study of the fertility balance of the soil, but, in some cases in connection with studies of the genesis and development of soils.

Download or read book A Survey and Discussion of Lysimeters and a Bibliography on Their Construction and Performance written by Helmut Kohnke and published by . This book was released on 1940 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Survey and Discussion of Lysimeters and a Bibliography on Their Construction and Performance written by Helmut Kohnke and published by . This book was released on 1940 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Survey and Discussion of Lysimeters and a Bibliography on Their Construction and Performance Classic Reprint written by Helmut Kohnke and published by Forgotten Books. This book was released on 2017-11-28 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from A Survey and Discussion of Lysimeters and a Bibliography on Their Construction and Performance The first lysimeter in the United States was built by Sturtevant on his farm in Massachusetts in 187 5, and it is interesting to note that this was Of the soil-block type. In 1882 Sturtevant installed another set Of three lysimeters at the experiment station at Geneva, N. Y. These lysimeters were also Of the soil-block type and were transported from the original location to the lysimeter pit. They were constructed Of White oak planks lined with heavy Sheet copper and had a bottom made Of a heavy flat section Of boiler iron. After a number Of years, Babcock and Goff, who continued this work, believed that the lysimeters dried out too readily, and they there fore built four additional lysimeters with an artificially maintained ground-water table. Two Of these lysimeters were Of the soil-block type and two were filled with soil that was previously sifted and dried. The records Obtained from this research do not seem to have been very convincing; for the installation was abandoned in 1890. 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.

Download or read book Miscellaneous Publication written by Ellen Kay Miller and published by . This book was released on 1992 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Seed Stored in Cones of Some Jack Pine Stands Northern Minnesota written by Eugene Irving Roe and published by . This book was released on 1963 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Bulletin written by and published by . This book was released on 1967 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Biology and Pathology of Dwarfmistletoe written by D. K. Barnes and published by . This book was released on 1967 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Toxicology and Risk Assessment written by Fred T. Price and published by ASTM International. This book was released on 2000 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Bed load Function for Sediment Transportation in Open Channel Flows written by Hans Albert Einstein and published by . This book was released on 1950 with total page 1690 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Forest Research Notes written by and published by . This book was released on 1942 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Recharge of Phreatic Aquifers in Semi Arid Areas written by Ian Simmers and published by Routledge. This book was released on 2017-10-19 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Groundwater use is of fundamental importance to meet the rapidly expanding urban, industrial and agricultural water requirements in (semi) arid areas. Quantifying the current rate of groundwater recharge and define its variability in space and time are thus prerequesites for efficient groundwater resource managment in these regions, where such resources are often the key to economic development. Attention focuses on recharge of phreatic aquifers, often the most readily-available and affordable source of water in (semi) arid regions. These aquifers are also the most susceptible to contamination, with the recharge rate determining their level of vulnerability. (Semi) arid zone recharge can be highly variable, the greater the aridity, the smaller and potentially more variable the natural flux. Its determination is an iterative process, involving progressive data collection and resource evaluation; there is also a need to use more than one technique to verify results. Direct, localised and indirect recharge mechanisms from a spectrum of known sources are addressed in the framework of recharge from precipitation, intermittant flow and permanent water bodies. The approach taken for each of these reflects the nature and current understanding of the processes involved. The volume also reviews current recharge estimation challenges, outlines recent developments and offers guidance for potential solutions.

Download or read book Soil Conservation Literature written by United States. Soil Conservation Service. Library and published by . This book was released on 1939 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Soil Conservation Literature written by and published by . This book was released on 1940 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book List of Available Publications of the United States Department of Agriculture written by United States. Department of Agriculture and published by . This book was released on with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mechanisms Of Pesticide Movement Into Ground Water written by R. Honeycutt and published by CRC Press. This book was released on 2018-01-31 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is devoted to exploring the mechanism of pesticide movement into groundwater. It describes how pesticides enter ground water/drinking water systems and how regulatory decisions based on these mechanisms will affect the use of pesticides. Experimental results, models, and industry and regulatory perspectives are covered.

Download or read book Soil Water Solute Process Characterization written by Javier Alvarez-Benedi and published by CRC Press. This book was released on 2004-12-28 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt: The practitioner or researcher often faces complex alternatives when selecting a method to characterize properties governing a soil process. After years of research and development, environmental and agricultural professionals now have an array of methods for characterizing soil processes. Well-established methods, however, may not be suitable for