Author: Yichang SunPublisher:
ISBN:
Category :
Languages : en
Pages : 128
Book Description
Spatial Variability of Selected Soil Chemical Properties in Virgin Prairie Soil
Author: Yichang SunSpatial Variation in Soil Chemical Properties at Different Profile Depts Within Selected Arable Fields in Northern Alabama
Author: Jacques Antonio Maurice SurrencyPublisher:
ISBN:
Category : Soil and environment
Languages : en
Pages : 71
Book Description
The Spatial Variability of Soil Properties and 2,4-D Sorption and Desorption in Two Calcareous Prairie Landscapes
Author: Kristian Dietrich StephensPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Masters Theses in the Pure and Applied Sciences
Author: W. H. ShaferPublisher: Plenum Publishing Corporation
ISBN: 9780306443480
Category : Education
Languages : en
Pages : 392
Book Description
Masters Theses Listed by Discipline: Aerospace Engineering. Agricultural Economics, Sciences and Engineering. Architechtural Engineering and Urban Planning. Astronomy. Astrophysics. Ceramic Engineering. Communications Engineering and Computer Science. Cryogenic Engineering. Electrical Engineering. Engineering Mechanics. Engineering Physics. Engineering Science. Fuels, Combustion, and Air Pollution. General and Environmental Engineering. Geochemistry and Soil Science. Geological Sciences and Geophysical Engineering. Geology and Earth Science. Geophysics. Industrial Engineering. Marine and Ocean Engineering. Materials Science and Engineering. Mechanical Engineering and Bioengineering. Metallurgy. Meteorology and Atmospheric Science. 17 additional disciplines. Index.
Spatial Variability of Soil Properties
Author: Hans Christian LybyeCharacterization of Soil Spatial Variability for Site-Specific Management Using Soil Electrical Conductivity and Other Remotely Sensed Data
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
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.
Master's Theses Directories
Author: Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 560
Book Description
The Effect of Soil Spatial Variability on the Leaching of Organic Chemicals
Author: Ethan Matthew LadenPublisher:
ISBN:
Category : Soil percolation
Languages : en
Pages : 120
Book Description
Spatial Variability of Soil Physical Properties
Author: S. HansenSpatial Variability Analysis of Soil Physical Properties and Validation of GOSSYM/COMAX
Author: Javed IqbalPublisher:
ISBN:
Category : Cotton growing
Languages : en
Pages : 366
Book Description