scholarly journals Nested Scales of Spatial and Temporal Variability of Soil Water Content Across a Semiarid Montane Catchment

2018 ◽  
Vol 54 (10) ◽  
pp. 7960-7980 ◽  
Author(s):  
Kendra E. Kaiser ◽  
Brian L. McGlynn
Keyword(s):  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Temporal Variability ◽  
Spatial And Temporal Variability

Fractal Description of the Spatial and Temporal Variability of Soil Water Content Across an Agricultural Field

Soil Science ◽  
2012 ◽  
Vol 177 (2) ◽  
pp. 131-138 ◽  
Author(s):  
Eva Vidal-Vázquez ◽  
Jorge Paz-Ferreiro ◽  
Sidney Vieira ◽  
George Topp ◽  
José Miranda ◽  
...  
Keyword(s):  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Temporal Variability ◽  
Spatial And Temporal Variability ◽  
Agricultural Field ◽  
Fractal Description

scholarly journals Analyzing spatial and temporal variability of soil water content

Bragantia ◽  
2008 ◽  
Vol 67 (2) ◽  
pp. 463-469 ◽  
Author(s):  
Sidney Rose Vieira ◽  
Célia Regina Grego ◽  
George Clarke Topp
Keyword(s):  
Spatial Variability ◽  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Spatial Dependence ◽  
Temporal Variability ◽  
Temporal Stability ◽  
Water Evaporation ◽  
Spatial And Temporal Variability ◽  
Statistical Parameters

During the last two decades geoestatistical methods have been intensively used for in-depth descriptions of spatial variability. The objective of this study was to assess the spatial and temporal variability of soil water content. The measurements were taken with a TDR equipment to a 20 cm depth, in a nearly flat 1.2 ha field at the Central Experimental Farm of the Agriculture Canada, Ottawa. The soil classified as a Rideau soil series, is a clay loam soil. A square grid with 10 m spacing was laid out, resulting in 164 sampling points at which two TDR rods were installed to measure the water content down to 20 cm depth. Measurements were taken on 33 dates during the frost free months in 1987, 1988 and 1989. The spatial variability was analyzed examining the scaled semivariograms, the statistical parameters and the parameters of the models fit to individual semivariograms as a function of time. It was concluded that spatial dependence decreases as the soil gets drier and that results from one year connect almost continuously to other years. The topography and structure of topsoil horizon was the primary cause for the repeating spatial pattern of soil water content in successive samplings. The places where the mean value occurred in the field were more stable in time when there was spatial dependence. As the soil gets dryer the temporal stability of the spatial distribution tends to disappear due to the hydraulic conductivity controlling the water evaporation over the field

Spatio-temporal variability behavior of land surface soil water content in shrub- and grass-land

Geoderma ◽  
2011 ◽  
Vol 162 (3-4) ◽  
pp. 260-272 ◽  
Author(s):  
Wei Hu ◽  
Mingan Shao ◽  
Fengpeng Han ◽  
Klaus Reichardt
Keyword(s):  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Temporal Variability ◽  
Land Surface ◽  
Surface Soil ◽  
Grass Land ◽  
Spatio Temporal
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