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Author : Javed Iqbal
Publisher :
ISBN 13 :
Total Pages : 366 pages
Book Rating : 4.:/5 (477 download)
Download or read book Spatial Variability Analysis of Soil Physical Properties and Validation of GOSSYM/COMAX written by Javed Iqbal and published by . This book was released on 2000 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 846 pages
Book Rating : 4.E/5 ( download)
Download or read book Proceedings written by and published by . This book was released on 2000 with total page 846 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : S. Hansen
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (473 download)
Download or read book Spatial Variability of Soil Physical Properties written by S. Hansen and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mardonio Aguair Coelho
Publisher :
ISBN 13 :
Total Pages : 194 pages
Book Rating : 4.:/5 (11 download)
Download or read book Spatial Variability of Water Related Soil Physical Properties written by Mardonio Aguair Coelho and published by . This book was released on 1980 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mardonio Aguiar Coelho
Publisher :
ISBN 13 :
Total Pages : 97 pages
Book Rating : 4.:/5 (563 download)
Download or read book Spatial Variability of Water Related Soil Physical Properties written by Mardonio Aguiar Coelho and published by . This book was released on 1974 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Søren Hansen
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (91 download)
Download or read book Spatial Variability of Soil Physical Properties written by Søren Hansen and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Abdulrahman Mohammad Almadini
Publisher :
ISBN 13 :
Total Pages : 150 pages
Book Rating : 4.3/5 (121 download)
Download or read book Spatial Variability of Arlington Sandy Loam and Its Effect on Infiltration Rates written by Abdulrahman Mohammad Almadini and published by . This book was released on 1987 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Melissa Suarez
Publisher :
ISBN 13 : 9781267760081
Total Pages : pages
Book Rating : 4.7/5 (6 download)
Download or read book Evaluation of the Spatial Variability of Soils written by Melissa Suarez and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Soils, as a piece of evidence, have the potential to be extremely useful in forensic investigations. However, before their full utility can be realized, the extent of their benefits and limitations must be thoroughly examined. The following research was designed to find and measure variation among soils that are highly similar in geography and general soil properties. Samples were collected from Fallbrook map units, along with adjacent map units (i.e., Vista, Cieneba, Placentia, Buchenau, Reiff) from the neighboring southern California counties of Riverside and San Diego. The sampling locations were further categorized by their land use as undisturbed, disturbed, and irrigated; where undisturbed samples have not been disturbed for approximately five years and contain native vegetation, and disturbed sites have been plowed or developed. The samples were analyzed using a variety of chemical, physical and mineralogical techniques, including chemical extract analysis, particle size, and Fourier transform infrared spectroscopy (FTIR), and then compared to one another. The results were analyzed using a suite of statistical analyses, including Student's t-test, principal components analysis, hierarchical cluster using Ward's method, and linear discriminant analysis. The data demonstrate that some analytical techniques, such as x-ray diffraction (XRD) data and chemical extract data, are better at distinguishing among samples than others, such as soil color and particle size. In particular, contributions of rare earth elements (REEs) (ratio of Ce:Pr) from chemical extracts were useful for distinguishing soil samples from the two counties. While the soils analyzed in this study were chosen to reduce variability in the data set, each sample was eventually differentiated from the others. For soils chosen at random, such techniques as color and particle size may prove to be a useful and simple way to distinguishing amongst them. Additionally, the ability to separate the soil samples used in this study by county illustrates the potential usefulness of a soil database for use by criminal investigators.
Download or read book Soil Spatial Variability: Structures, Models, and Their Effects on Crop Yield Variability written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Majumdar S. P.
Publisher :
ISBN 13 :
Total Pages : 170 pages
Book Rating : 4.:/5 (119 download)
Download or read book Analysis of Soil Physical Properties written by Majumdar S. P. and published by . This book was released on 2017 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Characterization of Soil Spatial Variability for Site-Specific Management Using Soil Electrical Conductivity and Other Remotely Sensed Data written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Field-scale characterization of soil spatial variability using remote sensing technology has a great potential for achieving the successful implementation of site-specific management (SSM). The objectives of this study were to: (i) examine the spatial relationships between apparent soil electrical conductivity (ECa) and soil chemical and physical properties to determine if ECa could be useful to characterize soil properties related to crop productivity in the Coastal Plain and Piedmont of North Carolina; (ii) evaluate the effects of in-situ soil moisture variation on ECa mapping as a basis for characterization of soil spatial variability and as a data layer in cluster analysis as a means of delineating sampling zones; (iii) evaluate clustering approaches using different variable sets for management zone delineation to characterize spatial variability in soil nutrient levels and crop yields. Field studies were conducted in two physiographic regions of North Carolina, the Piedmont and Coastal Plain. Spatial measurements of ECa via electromagnetic induction (EMI) were compared with soil chemical parameters (extractable P, K, and micronutrients; pH, cation exchange capacity (CEC), humic matter or soil organic matter; and physical parameters (percentage sand, silt, and clay; and plant-available water (PAW) content; bulk density; cone index; saturated hydraulic conductivity [Ksat] in one of the coastal plain fields) using correlation analysis across fields. We also collected ECa measurements in one coastal plain study field on four days with significantly different naturally occurring soil moisture conditions measured in five increments to 0.75 m using profiling time-domain reflectometry probes to evaluate the temporal variability of ECa associated with changes in in situ soil moisture content. Nonhierarchical k-means cluster analysis using sensor-based field attributes including vertical ECa, near-infrared (NIR) radiance of bare-soil from an aerial color infrared (CIR) i.
Author : Lisa S. Wood
Publisher :
ISBN 13 :
Total Pages : 258 pages
Book Rating : 4.:/5 (185 download)
Download or read book Spatial Variability of Physical Properties of Captina Soils written by Lisa S. Wood and published by . This book was released on 1988 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hans Christian Lybye
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (487 download)
Download or read book Spatial Variability of Soil Properties written by Hans Christian Lybye and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Tejo Vikash Bheemasetti
Publisher :
ISBN 13 :
Total Pages : 323 pages
Book Rating : 4.:/5 (933 download)
Download or read book Spatial Variability Models and Prediction Analysis of Soil Properties Using Geostatistics written by Tejo Vikash Bheemasetti and published by . This book was released on 2015 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soils are composed of solid, water and air phases whose characteristics are highly variable. The interactions of these phases in the soil matrix can lead to different types of topographical formations and characteristics. Due to the uncertainty and complex interactions among these phases, studies on soils have always been a challenging problem for engineers. These variations and uncertainties make it necessary for engineers to adopt new techniques and methods to analyze soil properties in order to determine or interpret their generalized behaviors and patterns. Existing research in variability analysis tends to focus on the distribution of the soil properties, reliability-based design, and simulation of random fields. Despite an increase in the probabilistic and statistical analysis, many challenges remain in incorporating the spatial variability present in the soil properties into prediction analysis. In this research study, a framework was developed using univariate statistics and randomized random variable theory for analyzing the spatially-varied soil properties. The spatial variability present in the soil properties was modeled using the geostatistical tool, Variograms. The variability models were utilized to interpret the soil properties in three different studies in geotechnical engineering, encompassing natural soils, man-made soils, and natural soils rich with chemicals such as sulfates. This research highlights the adaptability of the framework for analyzing the soil properties varying from low-to-high variability.
Author : Yichang Sun
Publisher :
ISBN 13 :
Total Pages : 128 pages
Book Rating : 4.:/5 (214 download)
Download or read book Spatial Variability of Selected Soil Chemical Properties in Virgin Prairie Soil written by Yichang Sun and published by . This book was released on 1990 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Xuewen Huang
Publisher :
ISBN 13 :
Total Pages : 336 pages
Book Rating : 4.3/5 (129 download)
Download or read book Analysis of Effects of Soil Properties, Topographical Variables and Management Practices on Spatial-temporal Variability of Crop Yields written by Xuewen Huang and published by . This book was released on 2008 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Maurice J. Mausbach
Publisher :
ISBN 13 :
Total Pages : 300 pages
Book Rating : 4.3/5 (91 download)
Download or read book Spatial Variabilities of Soils and Landforms written by Maurice J. Mausbach and published by . This book was released on 1991 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: The need to quantify spatial variability; predicting variability of soils from landscape models; one perspective on spatial variability in geologic mapping; scientific methodology of the National Cooperative Soil Survey; statistical procedures for specific objectives; a comparison of statistical methods for evaluating map unit composition; sampling designs for quantifying map unit composition; presentation of statistical data on map units to the user; soil mapping concepts for environmental assessment; minimum data sets for use of soil survey information in soil interpretive models; quantifying map unit composition for quality control in soil survey; using systematic sampling to study regional variation of a soil map unit; confidence intervals of soil properties within map units; spatial variability of organic matter content in selected Massachusetts map units; geographic information systems for soil survey and land-use planning.
