Download or read book A Method of Measuring Increase in Soil Depth and Water Storage Capacity Due to Forest Management Classic Reprint written by George R. Trimble Jr and published by Forgotten Books. This book was released on 2018-05-21 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from A Method of Measuring Increase in Soil Depth and Water-Storage Capacity Due to Forest Management Vegetation builds up the humus (organic content) and increases the pore space (22 3, A), Foresters who have studied the forest floor in rocky areas know that individual rocks are often covered with pure organic matter. In places. 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 Handbook on Measurement of Soil Moisture by the Neutron Scattering Method written by United States Department Of Agriculture and published by Forgotten Books. This book was released on 2018-09-20 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Handbook on Measurement of Soil Moisture by the Neutron Scattering Method: A Compilation of Available Information for Use Within U. S. Forest Service Sampling destroys the site, injures vegetation, and inter feres with natural soil moisture dynamics. 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 Soil Moisture Measurement Classic Reprint written by Howard W. Lull and published by Forgotten Books. This book was released on 2018-03-18 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Soil-Moisture Measurement As has been noted, the gravimetric method is the only commonly used direct means of measuring soil moisture. Simply, it involves taking a soil sample, weighing it, oven-drying it, reweighing, and expressing the original moisture content in percent of oven-dry weight of soil. The first step, securing the sample, is the most troublesome, the degree of difficulty depending on the condition of the soil. Sampling conditions are ideal when soil is just moist enough for easy ingress and egress of the sampling instrument, and where stones, roots, and organic matter are not a problem. Such conditions are seldom encountered. With free water in the soil, moisture can never be sampled accurately: water will drip off as the sample is removed from the ground or compaction may squeeze it out. Rapid sampling is essential to prevent undue losses. Stickiness, often a problem in wet soils, can be alleviated by keeping instruments clean. Where a wet layer overlies a dry one, samples taken from the drier levels may be contaminated. After the upper soil is wetted by a summer rain, for instance, removal of a sample may permit water to run down the hole toward drier soil. The same problem is en countered when samples are taken below a perched water table. Wet instruments add to contamination and should be dried between samplings. When the soil is dry and hard, the principal problem in fine textured soils is to get the sampling instrument in and out again. In coarse-textured soils particularly, samples may slide out of the in strument as it is withdrawn from the soil. Fortunately, after the soil dries in summer, its moisture content may fluctuate so little that frequent sampling may be unnecessary. 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 Methods of Measuring Soil Moisture in the Field written by Arnold Ivan Johnson and published by . This book was released on 1962 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evaluates methods for measuring soil moisture and describes the equipment used.
Download or read book Soil Moisture Measurement With the Neutron Method Classic Reprint written by Cornelius H. M. van Bavel and published by Forgotten Books. This book was released on 2018-09-15 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Soil Moisture Measurement With the Neutron Method Millicurie A quantity unit of radioactive material equivalent to 3. 7 x 107 disintegrations per second. Milliroentgen A unit of ionizing radiative energy; one thousandth of a roentgen. 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 The United Nations world water development report 2018 written by WWAP and published by UNESCO Publishing. This book was released on 2018-03-26 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Methods of Soil Moisture Determination Under Field Conditions Classic Reprint written by David F. Olson Jr and published by Forgotten Books. This book was released on 2017-10-27 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Methods of Soil Moisture Determination Under Field Conditions The determination of soil moisture under field conditions is of vital importance to the agronomist, forester, hydrologist, and engineer. Those dealing in the plant sciences are primarily interested in the amount of water that is available to plants under various environmental conditions; the hydrologist and engineer are also concerned with soil moisture existing in the range above the field capacity and below the permanent wilting percentage. Continuous soil moisture measurement is necessary for full understanding of the nature of soil moisture move ment, but limited studies of soil moisture are often needed as well. 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 Some Field Laboratory and Office Procedures for Soil Moisture Measurement written by United States Department Of Agriculture and published by Forgotten Books. This book was released on 2017-10-28 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Some Field, Laboratory, and Office Procedures for Soil-Moisture Measurement: July 1954 One of the important phases of the soil-moisture studies Of the Vicksburg Infiltration Project has been the determination of bulk density. Defined as the ratio of the weight Of oven-dry soil to the volume it occupied in the field, bulk density is expressed in grams per cubic centi meter. Its use is principally for converting moisture content from percent by weight to depth or area-inches. 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 Handbook on Measurement of Soil Moisture by the Neutron Scattering Method a Compilation of Available Information for the Use Within US Forest Service written by United States Dept. of Agriculture. Forest Service and published by . This book was released on 1962 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assessment and Governance of Sustainable Soil Management written by Katharina Helming and published by MDPI. This book was released on 2020-01-24 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: The role of soils for achieving the Sustainable Development Goals is multifarious. Soils are the essential basis for food and biomass provision in support of food security (SDG 2) and energy security (SDG 7). Soil carbon sequestration is paramount for climate action (SDG 13). Soil-mediated water purification and retention, nutrient and matter cycling, and soils habitat functions are essential for maintaining ecosystem services and biodiversity (SDG 15). Healthy soils perform well in all these functions simultaneously. However, the globally increasing demand for food, fiber, and bio-based products poses massive challenges to soil health. Minimizing trade-offs between biomass production and soil health requires systemic approaches to assessment and governance of sustainable soil management in agriculture and food systems. It provides interdisciplinary insights into key questions: What are the impacts of agricultural management practices on sustainability targets in specific geophysical and socio-economic contexts? What are the opportunities and risks of future trends such as climate change, digitalization, and emerging technologies for soil management and soil health? How can institutions and governance instruments be improved to enable decision makers to take action on sustainable soil management? The book was initiated in the frame of the National German research program ‘BonaRes—Soil as a sustainable resource for the bioeconomy’, and it is meant to trigger interdisciplinary thinking.
Download or read book Measuring Depth and Distribution of Roots for Predicting Soil Water Depletion written by William Chris Mayaki and published by . This book was released on 1975 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Mensuration Classic Reprint written by Henry Solon Graves and published by Forgotten Books. This book was released on 2017-10-12 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Forest Mensuration In a systematic division of the science of forestry, mensura tion falls under forest management and is often included in text books on that subject. Forest mensuration also touches silvi culture very closely, for its principles are used in the determina tion of many silvical characteristics of trees, including incre ment and yield, form and development of the stem and crown. 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 Forest Hydrology written by Devendra Amatya and published by CABI. This book was released on 2016-09-14 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forests cover approximately 26% of the world's land surface area and represent a distinct biotic community. They interact with water and soil in a variety of ways, providing canopy surfaces which trap precipitation and allow evaporation back into the atmosphere, thus regulating how much water reaches the forest floor as through fall, as well as pull water from the soil for transpiration. The discipline "forest hydrology" has been developed throughout the 20th century. During that time human intervention in natural landscapes has increased, and land use and management practices have intensified. The book will be useful for graduate students, professionals, land managers, practitioners, and researchers with a good understanding of the basic principles of hydrology and hydrologic processes.
Download or read book Handbook on Measurement of Soil Moisture by the Neutron Scattering Method written by United States. Forest Service and published by . This book was released on 1962 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil water measurement written by J D. Cooper and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Unasylva 251 written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2019-12-05 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water – drinkable, usable water – is likely to be one of the most limiting resources in the future, given the growing global population, the high water demand of most agricultural production systems, and the confounding effects of climate change. We need to manage water wisely – efficiently, cost-effectively and equitably – if we are to avoid the calamity of a lack of usable water supply. Forested watersheds provide an estimated 75 percent of the world’s accessible freshwater resources, on which more than half the Earth’s people depend for domestic, agricultural, industrial and environmental purposes. Forests therefore, are vital natural infrastructure, and their management can provide “nature-based solutions” for a range of water-related societal challenges. This edition of Unasylva explores that potential.
Download or read book Bulletin of the Atomic Scientists written by and published by . This book was released on 1970-12 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bulletin of the Atomic Scientists is the premier public resource on scientific and technological developments that impact global security. Founded by Manhattan Project Scientists, the Bulletin's iconic "Doomsday Clock" stimulates solutions for a safer world.
