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Micro Scale Spatial Variability Of Crop Roots Water Content Soil Texture And Their Influence On Soil Water Extraction Rates
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Book Synopsis Micro-scale Spatial Variability of Crop Roots, Water Content, Soil Texture and Their Influence on Soil Water Extraction Rates by : Carlos M. Paglis
Download or read book Micro-scale Spatial Variability of Crop Roots, Water Content, Soil Texture and Their Influence on Soil Water Extraction Rates written by Carlos M. Paglis and published by . This book was released on 1999 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2008 with total page 980 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characterization of Soil Water Content Variability and Soil Texture Using GPR Groundwave Techniques by :
Download or read book Characterization of Soil Water Content Variability and Soil Texture Using GPR Groundwave Techniques written by and published by . This book was released on 2010 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: Accurate characterization of near-surface soil water content is vital for guiding agricultural management decisions and for reducing the potential negative environmental impacts of agriculture. Characterizing the near-surface soil water content can be difficult, as this parameter is often both spatially and temporally variable, and obtaining sufficient measurements to describe the heterogeneity can be prohibitively expensive. Understanding the spatial correlation of near-surface soil water content can help optimize data acquisition and improve understanding of the processes controlling soil water content at the field scale. In this study, ground penetrating radar (GPR) methods were used to characterize the spatial correlation of water content in a three acre field as a function of sampling depth, season, vegetation, and soil texture. GPR data were acquired with 450 MHz and 900 MHz antennas, and measurements of the GPR groundwave were used to estimate soil water content at four different times. Additional water content estimates were obtained using time domain reflectometry measurements, and soil texture measurements were also acquired. Variograms were calculated for each set of measurements, and comparison of these variograms showed that the horizontal spatial correlation was greater for deeper water content measurements than for shallower measurements. Precipitation and irrigation were both shown to increase the spatial variability of water content, while shallowly-rooted vegetation decreased the variability. Comparison of the variograms of water content and soil texture showed that soil texture generally had greater small-scale spatial correlation than water content, and that the variability of water content in deeper soil layers was more closely correlated to soil texture than were shallower water content measurements. Lastly, cross-variograms of soil texture and water content were calculated, and co-kriging of water content estimates and soil texture measurements showed that geophysically-derived estimates of soil water content could be used to improve spatial estimation of soil texture.
Book Synopsis American Doctoral Dissertations by :
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1999 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spatial Distribution and Water Uptake of Roots in Structured Growth Media by : Mariana Amato
Download or read book Spatial Distribution and Water Uptake of Roots in Structured Growth Media written by Mariana Amato and published by . This book was released on 1991 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Food and Agriculture Organization of the United Nations. Soil Resources, Management, and Conservation Service Publisher : ISBN 13 : Total Pages :256 pages Book Rating :4.F/5 ( download)
Book Synopsis Guidelines: Land Evaluation for Irrigated Agriculture by : Food and Agriculture Organization of the United Nations. Soil Resources, Management, and Conservation Service
Download or read book Guidelines: Land Evaluation for Irrigated Agriculture written by Food and Agriculture Organization of the United Nations. Soil Resources, Management, and Conservation Service and published by . This book was released on 1985 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Soil Processes and the Carbon Cycle by : Rattan Lal
Download or read book Soil Processes and the Carbon Cycle written by Rattan Lal and published by CRC Press. This book was released on 2018-02-06 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: World soils contain about 1500 gigatons of organic carbon. This large carbon reserve can increase atmospheric concentrations of CO2 by soil misuse or mismanagement, or it can reverse the 'greenhouse' effect by judicious land use and proper soil management. Soil Processes and the Carbon Cycle describes soil processes and their effects on the global carbon cycle while relating soil properties to soil quality and potential and actual carbon reserves in the soil. In addition, this book deals with modeling the carbon cycle in soil, and with methods of soil carbon determinations.
Book Synopsis Water Use Efficiency for Irrigated Turf and Landscape by : Geoff Connellan
Download or read book Water Use Efficiency for Irrigated Turf and Landscape written by Geoff Connellan and published by CSIRO PUBLISHING. This book was released on 2013 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: Achieving high water use efficiency in maintaining turf, trees and landscape areas is a core responsibility of open space managers. Water Use Efficiency for Irrigated Turf and Landscape provides a logical and scientifically sound approach to irrigation in urban areas in Australia. It is based on green space delivering defined outcomes using the principles of water sensitive urban design and irrigation efficiency. The book covers all stages of the water pathway - from the source to delivery into the plant root zone. Major topics include system planning, estimating water demand, water quality, irrigation systems, soil management and irrigation performance evaluation. Clearly presented explanations are included, as well as line drawings and worked examples, and a plant water use database covering more than 250 plant species. A Water Management Planning template is included to guide water managers and operators through a process that will deliver a sound plan to achieve sustainable turf, urban trees and landscapes. Best Management Practice Irrigation principles are outlined and their implementation in open space turf and landscape situations is explained. The benefits and limitations of the various methods of delivering water to plants are covered, together with case studies and guidelines for specific horticultural situations. Methodologies to evaluate irrigated sites are included along with recommended benchmark values. The book presents the latest irrigation technology, including developments in water application, control technology and environmental sensors such as weather stations, soil moisture sensors and rain sensors.
Book Synopsis Selected Water Resources Abstracts by :
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1990 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Elucidating Microbial Processes in Soils and Sediments: Microscale Measurements and Modeling, 2nd Edition by : Philippe C. Baveye
Download or read book Elucidating Microbial Processes in Soils and Sediments: Microscale Measurements and Modeling, 2nd Edition written by Philippe C. Baveye and published by Frontiers Media SA. This book was released on 2020-03-27 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: Half a century ago, soil ...
Book Synopsis Assessing and Modeling the Spatial Variability of Soil Water Redistribution and Wheat Yield Along a Sloping Landscape by : Ayman Abdallah Ahmed Suleiman
Download or read book Assessing and Modeling the Spatial Variability of Soil Water Redistribution and Wheat Yield Along a Sloping Landscape written by Ayman Abdallah Ahmed Suleiman and published by . This book was released on 1999 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bibliography of Agriculture with Subject Index by :
Download or read book Bibliography of Agriculture with Subject Index written by and published by . This book was released on 1987-10 with total page 1238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the 16th World Congress of Soil Science on CD-ROM. by :
Download or read book Proceedings of the 16th World Congress of Soil Science on CD-ROM. written by and published by . This book was released on 1998 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Full text and summaries of conference papers.
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1976 with total page 1732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scale Issues in Hydrological Modelling by : J. D. Kalma
Download or read book Scale Issues in Hydrological Modelling written by J. D. Kalma and published by John Wiley & Sons. This book was released on 1995-09-11 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a growing need for appropriate models which address the management of land and water resources and ecosystems at large space and time scales. Theories of non-linear hydrological processes must be extrapolated to large-scale, three-dimensional natural systems such as drainage basins, flood plains and wetlands. This book reports on recent progress in research on scale issues in hydrological modelling. It brings together 27 papers from two special issues of the journal Hydrological Processes. The book makes a significant contribution towards developing research strategies for linking model parameterisations across a range of temporal and spatial scales. The papers selected for this book reflect the tremendous advances which have been made in research into scale issues in hydrological modelling during the last ten years.
Book Synopsis Spatial Patterns in Catchment Hydrology by : Rodger Grayson
Download or read book Spatial Patterns in Catchment Hydrology written by Rodger Grayson and published by CUP Archive. This book was released on 2001-08-06 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes use of observed patterns in understanding and modelling hydrological response, for researchers and graduate students.
Download or read book Soils and Fertilizers written by and published by . This book was released on 1997-07 with total page 1258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
